The Development History of PLC Device

PLC device is introduced to all people around the world by Richard E. Morley. He is the founder of Modicon Corporation. According to National Manufacturing Association (NEMA), programmable logic controller (PLC) is a digital electronic device which is programmed to store some instructions that operate certain functions such as logics, sequences, timing, counting and arithmetic to control an industry machine or process. PLC is able to do all of the industry process according to the input variables. Then PLC gives a decision based on the programming so that the output values remain controllable. Many industries now use PLC device considering its advantages.

The Usage of PLC Device
PLC device is sort of special computer in industries application. This device is used to monitor a process and replace hard wiring control. PLC has its own programming language. However, PLC is not the same as personal computer because PLC is designed for the installation and maintenance by engineeds and electrical experts in industries. PLC gives control flexibilities based on the execution of logical instruction. Therefore, the input and the output of PLC develops more advance day by day. In addition, the memory, the speed and the communication among PLC as well as the programming technic develop fast these days. In the use of programmable logic controller it is better to think about the bad effects of this use. You need to know many things before you really use this controller so if the bad effects come you will be able to take care it of. It is the reason why you have to familiar with this PLC device so you can take it easy if the trouble comes.

The Automation of PLC device
Recently, PLC device gains popularity in manufactures and factories. It is popular for its efficiency and effectiveness. Also, PLC is more popular day by day because it can be automated. Thus, all operation and precision improve much better using this control system. One of the most popular benefit when using PLC is that PLC is able to change and imitate all operation processes at the same time with the communication and the gathering of vital information. Considering this, many factories do not hesitate anymore to use PLC device.

PLC device always keep changing to suit the need of the operation of all factories. Engineers try to improve the device so that the need for more efficient and effective operation in factories and manufactures can be satisfied. Therefore, PLC device now is getting modern, interest and attractive; also the models and sizes are greatly varied.

Ladder Logic of TEP PLC

Ports of Expansion and Slave
The TEP PLC is prepared with 4 expansion ports to let future modules of input and output to be connected. Possible modules comprise analogue to digital converters, temperature sensors, motor controllers, and so on. Future software of pending updates, an added PLC can also be linked as a slave device, doubling the inputs and outputs number.

Software and Ladder Logic
Fundamental software is integrated with the TEP PLC permitting simple creation of Ladder Logic programs and gives a one-step way of programming via USB. The software is free of charge and if there is updates can be downloaded from the product page website. The software main screen consists of a Tool Box where the variety of the symbols of Ladder Logic can be found; an area of Log which gives information about the connection of PLC and error feedback; an area of design where the Program of Ladder Logic is written; and a menu bar providing access to PLC programming operations, File operations and, unlimited undo/redo.

Ladder Logic
If you transfer a current throughout the coil, from point A to B, the normally open contact will be connecting C to D. even though almost all the symbols used in a Ladder Logic program don’t symbolize real relays, it is useful to recognize their source, and in some logic can be consideration of as parts of virtual relays.

The symbol of LOAD or normally open contact symbol can be used to represent an input, and the OUT symbol or the symbol of relay coil can be applied to adjust the state of an output in a program of Ladder Logic. The fundamental output of a PLC is typically a simple relay, with the normally open contact showing to the outer world. To close the contact of coil have to be energized, therefore the symbol of OUT or symbol of coil is used to adjust the output state from within a program. The PLC input is typically not a relay, but an optically of switch coupled or opto-isolator. An opto-isolator is created by an LED and a transistor of photosensitive.

When current transfers to the LED, light stands out on the photo-transistor and it switches on. This display is very alike to current transferring throughout the relay coil, causing the normally open contact to close. Therefore it is the LOAD symbol that reads the input state or its photo-transistor.

The Automation of Programmable Logic Controller

The system automation of programmable logic controller gives many advantages especially for the industry and manufacturing. They will reach the production targets in a year without any difficulties. They will not also get a problem with their employees who have to work over time to reach the company target. What they have to do just maintain the programmable logic controller well so this automatic controller can works all the time without any trouble. The technicians have to maintain all the times to make sure that the system automation of programmable logic controller works well.

System automation of Programmable Logic Controller is the Popular Tool
The system automation of programmable logic controller is a well known tool in the operation which is run automatically. What make it as the popular program because it is effective and efficient and deliver the same quality products. It is also flexible and reliable as well as the budged saver. You production cost will decrease significantly after using this automation programmable logic controller. For that reason many company owners search for this controller for their industry. Besides that this system automation of programmable logic controller will simplify the industrial process.

Be familiar with system automation of programmable logic controller
The system automation of programmable logic controller will be not just useful for the company. It can be your dream to be the expert of this automatic controller. You will get high appreciation to be the automation programmable logic controller expert because now there is just a little expert who has high competence on this controller so the companies which need them will pay in high payment. You can learn it as a computer programmer from now. What you need to do is just study hard and working hard and never give up as well. Your future career in the field of system automation of programmable logic controller will be very bright.

If you want to be a programmer of system automation of programmable logic controller, you have to be smart, diligent, creative, and so on. You have to learn the newest issue of the automation programmable logic controller. You have to be diligent in searching for much new update news about the automation programmable logic controller. It is caused by the fact that the automation programmable logic controller is always developing every times. So you need to work hard to be the programmer of this system automation of programmable logic controller because you will get the best appreciation since you get the high payment for your skill in programming this automatic controller.

Modular Digital Controller PLC

Industrial automation was reached using complex networks of timers, relays and other dedicated blocks of hardware in the 1960s. If you’re not recognizable with a relay, it is easily an electromagnet, then to a simple of the contact mechanical, albeit a magnetic one. When current is went through the coil, a contact that is closed normally is actually transferred to open. Relays are accessible in other designs too, but the basic is the same. Logical choices can be created by connecting relays jointly in a variety of ways. For instance, join the normally two relays open contacts in series and the both relays coils have to be energized before electrical current can flow, say, to a motor.

One mainly heavy user of this kind of control was the automotive industry of US. In a characteristic US car factory you would discover, racks ahead racks of relays clicking away, linked by a cables rat’s nest. The maintenance of such systems alone have to have been a nightmare. Visualize it’s time to “re-program” for the yearly model exchange. Not a desirable task. It was the cost acquired and time lost in modernizing these relay based control systems that encouraged the industry to subject a call to the technologists and engineers of the day to devise something better. Amongst others, Bedford Associates of Massachusetts moved toward the automotive industry of US with what they called the MODICON (Modular Digital Controller).

This system established the favorite with the industry, and the MODICON 084 was the world’s first profitably created Programmable Logic Controller (PLC). The new PLCs could be programmed with a language of graphical, identified as Ladder Logic, which was according to the diagrams employed to explain the old relay-based systems. This intended that plant engineers could simply adapt to using PLCs, and was possibly one of the main reasons for the PLC’s success through other systems. It will get a closer look at later of Ladder Logic.

Nowadays, PLCs are ever-present: you can stake a PLC is not far away if you can observe activity of industrial. There are now a lot of PLCs manufactures and, even as there are slight variations between brands, they all operate in broadly the same way. The PLC reads the state of its inputs, processes the Ladder Logic program, and places its outputs based on the result. Some PLCs have inputs and outputs number built in, while others are minimally the processing unit to which supplementary modules can be fond of be they motor controllers, inputs, relay based outputs, and so on.

Conveyor Control Using Allen Bradley PLC

PLC Type 1761 MicroLogix 1000, Name Input / Output PLC :

INPUT PLC :
I:0/0 ; Infrared Sensor
I:0/1 ; Push Button Start (Normally Open Contact)
I:0/2 ; Push Button Stop (Normally Closed Contact)
--- Link : normally open normally closed contact

OUTPUT PLC :
O:0/0 ; Empty Lightbox
O:0/1 ; Start-Stop on Inverter

PLC Programming for Conveyor Control using Allen Bradley PLC

Please Download Programming for RSLogix Micro Starter Lite : Conveyor Control

Reading Ladder PLC Programming for Conveyor Control using Allen Bradley PLC :

1. Conveyor Start
a.If I:0/1 = ON AND I:0/2 = ON Then B3:0/0 = ON (Hold ON)
b.If B3:0/0 = ON AND I:0/0 = OFF Then B3:0/1 = ON
c.If B3:0/1 = ON Then O:0/1 = ON

2. Conveyor Stop
a.If I:0/2 = OFF Then B3:0/0 = OFF
b.If B3:0/0 = OFF Then B3:0/1 = OFF
c.If B3:0/0 = ON AND I:0/0 = ON Then B3:0/1 = OFF
d.If B3:0/1 = OFF Then O:0/1 = OFF

3. Empty Lightbox = ON
a.If B3:0/0 = ON AND I:0/0 = OFF Then T4:0 activated (active for 10 seconds)
b.If T4:0/DN = ON Then O:0/0 = ON

Back to : Conveyor Control

The feature of Programmable Logic Controllers

Programmable logic controllers which are well known as PLC are the most controllers which are well used in many big companies in the world, mainly in the assembly line. It is an automatic controller which is run by the computer program to help the production process in a complicated assembling process. PLC is both hardware and software which are built in one controller. Before the company decides to use this programmable logic controller, they have to consider it. They have to know each detail of it so when it has been run as the part of production process they can take care of the problem which might arouse in the use of programmable logic controllers.

Programmable logic controllers are made apart from the computer but it still uses the computer program to run. The difference is that it is just used to do the special task and the computer program which run it also a special program too so you can get it in the common market. To use it, for the first time we need computer expert to install and to explain about it. It is simple so the one who will be gave a responsibility to handle it will be easy to learn about the programmable logic controllers.

Programmable Logic Controllers is developing continually
Since the programmable logic controllers are very useful in industrial field, it is continually developed by the experts. It gets better time after time. You have to get the update of this programmable logic controller to make it works maximally. The update of the programmable logic controller will be needed by the industry and the controller itself. The designs, size, model, and other programmable logic controller features can be updated and it is easy to get the update in Internet. So the programmable logic controllers are now interesting.

Programmable Logic Controllers is strong and compact
Programmable logic controllers are resistant in many kind of hard condition. We know that in the industrial place, there are many crowded and busy environment. Its places are dusty, hot, and uncomfortable. However programmable logic controller will still run well in such conditions. The feature in it offers you the compactness of this controller. It will not changed by the high temperature and pressure around it. If we use the new modern one, it will be stronger and able to work hard. So the programmable logic controllers are very beneficial.

The TEP PLC Hardware

The hardware of TEP PLC has been planned to be simple as possible though maintaining the significant aspects of the PLC of industrial. Connections to the inputs and outputs are prepared through the terminals of screwless, permitting fast modification to wiring. Onboard push buttons offer a simple way of modifying the states of input without connecting the switches or other devices of input. LED indicators demonstrate the present state of both inputs and outputs. At the same time, these features let easy carrying out tests to help the learning process.

Power Connections
The TEP PLC is motorized by a mains adaptor of 12V. The power supply of 12V plugs into the standard DC power connector on the PLC side. This supply power of 12V the internal PLC electronics, but it can be utilized with devices of input and output and so is also accessible at 3 locations via the screwless terminals. When powering external devices with the onboard 12V supply, care have to be taken not go beyond the rated output current of the mains adaptor.

Outputs
The TEP PLC contains a total of eight outputs. Every output can be linked to through a pair of screwless terminals. The outputs are isolated electrically from the internal electronics, therefore, no power is supplied directly from outputs. The pair of terminals is linked internally to the open contacts normally of a relay. While the output is on, the relay contacts close and there is a connection of electrical between the two terminals. While the output is off, there is no connection between the two terminals. Every output can easily be thought of as a switch.

The outputs are also cut off from each other, so can be utilized to switch different signals or power supplies. The simplest technique of powering a device from the PLC utilizes an output to switch the on-board supply of 12V. For instance, when the device of output is a 12V motor, the onboard 12V supply can be agitated throughout one of the motor outputs.

Inputs
The TEP PLC provides eight optically cut off inputs. An input is sensed as being on when a small current is transferred between the input terminal and the common terminal. Accomplishing this can be as simple as wiring a switch between 12V and the input, and wiring common to 0V. The system also enables transistor based sensors, like opto-switches to be straight connected to the PLC. The inputs are configured as two banks of four, with a common terminal for every bank (COMA and COMB).

PLC Review

The important information in PLC review
PLC review is needed much by many industries. It has many benefits in assisting the process of producing. It is a kind of special computer which has special task to control the production process in an industrial place. It works according to the instructions which are set through the special computer program. It is commonly used in assembly lines. PLC gives the new way in the process of manufacturing. It can make it simpler and effective. Due to its great function, PLC has a complicated program so the PLC review is very useful for those who do not know it.

PLC review gives you or industry an effective way in processing their products. Some people think that it is very complicated device since it is a kind of computerized device. They actually right but actually PLC is easy to use. It is made and designed to make assembly process easier and effective. They are all done by computer system by this PLC. It also can be used in many processing machines. To know much about the PLC you can read some reviews about it. PLC review gives you more understanding about it so if you have job which involve the assembly process you can apply it.

PLC review provides objective information
PLC review gives its specification clearly due to the fact that it will be used for special need. This review will state that the PLC is designed to special manufacturing process. The information about it will explain about the benefits of the program. By the information which is mentioned in the review you can compare it with the existed one. By so people will know the best feature from the PLC and decide whether it is appropriate with the job or not. PLC review also explains about the other function of this PLC like that it can be used for networking.

The balanced PLC review will show the disadvantages to the reader. So it does not only explain the benefits, it also give the fact that PLC is only able operated by people person who knows it in detail. So those who will run PLC controller must be trained to be the ones who deserve and able to operate it. Sometimes the PLC program gets error and the trained person will be able to take care of it. So the detail about the PLC must be well explained in the PLC review to make people know about it in detail so they will be familiar with this device.

Power Supply and Input Circuits of T100MX+ PLC

Power Supply
The small PLCs of T100MX+ for example the T100MX-3224R+ need a single regulated power supply +24V DC. Even though the PLC’s CPU can essentially work at voltages as low as 12V DC, its integrated electromechanical relays require at least +17V to run constantly. The PLCs can run at much wider voltage variety of power supply between 12 to 24V DC for all transistor-output models such as, the T100MX-4832+. Although the PLC can use either linear or switching power supply, please take note that if you need very precise analog reading from the on-board ADC, next you should employ only a good linear power supply that is ripples free. Switching power supply is well recognized to be noisy and can affect the analog reading accuracy.

The models of higher I/O for example T100MX-4832+ also acquire two different power connectors: One is the “CPU power” and the other marked the “I/O power”. These two connectors of power are connected internally on the T100MX-4832+Rev D version. Therefore you should exploit a single regulated, power supply of 12V to 24V DC (+/-5% fluctuation) to join to both inputs of power supply. Using split wires for the I/O and the CPU aid to decrease the noisy load power from the power of CPU.

Input Circuits
Observe the silk-screen markings on the PCB of T100MX+ and you should be capable to discover markings for example “Input 9-16”, “Input 1-8”, etc. which designate the Input terminals locations. All inputs contain indicators of green color LED. Every group has 8 inputs together into a detachable single strip of screw terminal and it divides a single COM terminal. All inputs utilize bi-directional opto-isolators and they can be linked to either NPN (sink current) or PNP (source current) types of sensor-outputs. The numbers of input are noticeable on their terminals of screw as well as on the PCB along with the strip pin.

T100MX+ Programmable Controller

The T100MX+ is a powerful programmable controller family. It is the other popular M-series PLCs close sibling: the T100MD+ PLCs. The major differentiation between the 2 families is which the T100MX+ has ports of 3 serial but no incorporated LCD port, while the T100MD+ has an incorporated LCD port but removed the second serial port of RS232. Up till now another difference being that T100MX+ utilizes input drivers of bi-directional opto isolated which can boundary to both the NPN and the PNP inputs type. The first port of RS232 COMM1 on the T100MX+ is moreover opto-isolated. Beside that, the T100MD+ and T100MX+ PLCs run similarly from the programming point of view.

The PLCs of M-series undergo one main firmware and hardware upgrade in 1999 to offer them extra ability of powerful communication. The newest M-series PLC hardware revision is “Rev D”. All designs of Rev D are obviously marked alongside the PCB board right edge. This guide of installation explains mostly the hardware appropriate just to the PLC of T100MX+. For comprehensive the special I/Os description and communication protocols which are familiar to both the T100MD+ and T100MX+ PLCs, please refer to the User’s Manual of T100MD+.

The T100MX+ Members differ only in their ON/OFF I/O digital combination. It will be initiating some standard models from 32 to 128 I/Os. Special combinations of I/O can also be custom-made for customers of OEM requiring over than 300 PLCs per year. In the above instance T100MX-3224+ resources that the PLC has 32 type inputs of ON/OFF and 24 type outputs of ON/OFF. The “R” specifies that some of the outputs are type of relay. Models with outputs of transistor do not bring the label of “R”. If you contain the 8 analog channels of I/Os, the PLC will contain a total of 32 + 24+ 8 = 64 I/Os.

Installing the 1784_KT Allen Bradley into a Computer

The below steps outline are how to install the 1784-KT into a computer, terminal, or workstation. According to the computer’s, terminal’s, or workstation’s hardware user manual for further assistance.
1. Switch off the computer and cut off the cord of ac power.
2. Take away all covers necessary to increase access to the slot area of computer’s expansion. The terminals of industry may have allowance brackets.
3. Take away the slot bracket expansion that covers up the computer I/O opening.
4. Take away the 1784-KT from the static bag.
5. Confirm the settings configuration for the system.
Important: If other card is already using the preferred switch settings, you will have to adjust the settings of card’s switch to a location of open memory.
If you are using the settings of default, go to step 10.
If you are not using the settings of default, go to step 6.
6. Choose a location of memory.
7. Choose the setting of interrupt. The options are:
- IRQ7
- IRQ5
- IRQ4
- IRQ3
- No interrupt
8. Set the address of memory location, by pressing the switches in at either the bottom or top, to reproduce the chosen memory location address.
9. Locate the interrupt by insertion the provided jumper in the correct location. Take out the jumper and put it on the two pins that match to the interrupt choice. If an interrupt is not needed by the program software, put the jumper in the position of “no interrupt”.
10. Slide the 1784-KT slowly into the slot of I/O expansion with a hand on each end of the board. Insert the connector of edge card firmly into the connector of I/O expansion slot.
11. Fix the hold on to screw into the retaining bracket and tighten.
12. Assemble all brackets and covers that take away in step 2.

The Series of OptiMate Terminals Compatible with Main Brands of PLC

Nematron has 16 operators the terminals of interface in the Series of OptiMate. All of the terminals are companionable with the main brands of PLC's. The Series of OptiMate is also companionable with microprocessor or computer based applications by using the protocol of OptiMate Hex.

All the terminals of operator are high performance, low cost, interface modules of man/machine with a large range of input and show capabilities. The product line of OptiMate is the most solution of cost-effective in I/O & control on the market today. The modules of OptiMate are companionable with any computer that has either a port of RS422 or RS232. They are also companionable with a lot of main PLC's

Broad Compatibility
The operator panels of OptiMate are compatible with most main brands of PLCs, as well as micro processor or PC according to applications using the protocol of OptiMate Hex. Compatible PLC brands consist of:
• Koyo
• Mitsubishi
• Modbus
• Modicon
• Omron
• Siemens
• Toshiba
• Allen Bradley
• AutomationDirect
• Entertron
• GE Fanuc
• IDEC
• Keyence

Easy to Use Software
The OM-WINEDIT is a user friendly, graphical software program that operates on any computer of Windows®-compatible. It is existing to construct any system of OptiMate panel, or identify all system parameters.

The OM-WINEDIT can be downloaded from the web site at no charge. It can also be bought on CD-ROM and comes with cables of OM-CCBL and OMACBL-1 to connect the operator panels and PC. Use the PLC Compatibility Chart to decide the letter to add on to the number of model that you are ordering. For instance, to buy an OM640 to apply in the AB PLC, after that the number of model to order would be OM640G. It would be OM640H for use with a Modbus PLC. A “--” designates that the model is incompatible with the matching PLC.

TROVIS 5500 Automation System PLC

The application of TROVIS 5500 PLC is generally for heating applications and programmable plants, systems of ventilation and air-conditioning, Modbus master interface for communication with other Modbus instruments (e.g. TROVIS 5576, 5579). Inputs and outputs expandable with expansion module.
Features
• Freely programmable based on IEC 61131 with ISaGRAF®
• Six programming languages
– Instruction List (IL)
– Flow Chart (FC)
– Sequential Function Chart (SFC)
– Ladder Diagram (LD)
– Function Block Diagram (FBD)
– Structured Text (ST)
• Illuminated display, fully graphic with plain text display and user-friendly operation
• Default appliances:
– Control of Boiler
– Control of Ventilation
– Control of Heat exchanger sequence
• Function modules/Default functions
• More than 50 function modules/ special functions for widespread program generation in applications of HVAC
– Plants of Boiler
– Control of Heat exchanger sequence
– Systems Ventilation
– Generation of Hot water
• Various levels of simple operation
• ISaGRAF® Application
• inputs of analog, inputs of binary, outputs of analog, outputs of binary and bus meter
– Setting level: levels of date/time, slave of Modbus, master of Modbus, bus meter and type of universal input
• Individually configurable of universal inputs
• Calibration sensor
• Inputs of binary can be added to the register of error status
• Communication of Modbus through Modbus slave function and Modbus master function
• Connection of Modbus slave, also via modem (RS-232)
• Text message or fax alarms configurable
• Communication of meter bus with max. three meters
• Flash EPROM

Electrical installation and connection
The device contains of the back panel and the housing. The electronics are incorporated into the housing. The back panel includes the block terminal. Two cores with each 0.75 mm² can be linked to each terminal. Fasten the back panel with the block of terminal to the wall for wall mounting. Plug on the housing after installing the connecting lines. Insert the housing into the ready panel cut-out and secure it for panel mounting. Plug on the back panel after installing the connecting lines.

The Use of Control Relays in Modern Electronic Equipments

What is Control Relays?
Control relays are applied in electric as well as electronic equipments. Motors, transistors, uninterrupted power supply system, power plants, and power meters are a few of the equipments that control relays are applied. Control relay is a device that closes or opens an electrical switch in accordance with the electric current flow by a conducting coil. It's an electromagnetic device and the switches don't arrive in direct contact on the conducting coil. In many cases, control relays controls the major power flow in an electric circuit.

How Control Relays Functions?
Control relays functions in two ways. As electric current runs through the electromagnetic coil, the current draws a magnetic matter which closes down the switch and the other way around once there's no current run through the coil. An outflow will help in the closing as well as the opening of the electrical switch. The relay won't get into an intermediate level between off and on. Electronic circuits could be joined to the relays in order to make them function automatically. Logical controller or programmable micro controller are used in electronic and also in complex control relays.

Control relays functions essentially by the rule of magnetization as well as de-magnetization. As current runs by the coil it produces magnetic poles within the coil, known as the South Pole and North Pole. These magnetic poles pull in an armature which would be joined to a spring. So long as the current is sufficient in the coil, the armature stays attracted to the coil and the switch will stay in the on condition. As the current value drops, the attractive pull of the coil is sweep over by the electric potential energy of the spring, therefore the spring draws back the armature as well as the electrical switch continues to the off position. Control relays efficiency is calculated by considering how fast the control relays may switch between the levels.

A lot of elements are looked at while projecting control relays. The magnetic and conducting properties from the coil, and also the nature of the coil's material are significant elements. In addition to that, the magnitude electric current flow ought to also be brought into consideration. Whenever the current passes the electrical capacity of the coil and so the relay and all the equipments attached to it can get tarnished. Temperature ought to be maintained below a level which the control relays can endure. Control relays ought to be functioned in optimum temperature circumstances as it impacts the life span of the device.

Program PLC in the Microprocessor Circuitry

The physically executed power demand indicator is programmed with microprocessors in medium and large scale industries. The main setback in the demand indicator functioning using microprocessor circuitry is that it works on an unchanged program, thus, the once set command level can not be changed suiting the fluctuations requirements in loads. To address above problems, a program PLC is suggested in the microprocessor circuitry place. This has offered for elasticity in changing the maximum order level costuming to the fluctuations in the load. PLC is a controlling appliance comprising of a programmable processing unit with specialized computer languages. Characteristically the program is written in an environment development on a PC and is downloaded on to a PLC directly via a cable. The program is saved in a non-volatile PLC memory. The circuitry of PLC monitors the multiple sensor inputs status, which control the actuators output like the solenoids of motor starters. A single circuitry of PLC controls all the above each output actuators. The circuitry of PLC provides a wide range of functions with controls of relay, controls of motor, controls of process, complex networks as well as dispersed control systems. In the current work a circuitry of PLC is built relating to power distribution.

The industrial PLC specifies total power from the unit of supply and controls the distribution to the non-manufacturing and manufacturing fields of the industry through the periods of demand beyond a certain level.

In early 20th century, microprocessors are applied for controlling distribution of power among a variety of units of an industry. The microprocessor applications experience from a basic limitation that it fails to modify the maximum order level during load fluctuations. This has effected in PLC circuitry development to be integrated in the microprocessor place, in order that the order level can be changed to suit the load variations resulting in a continuous power distribution and smooth uninterrupted. PLCS are miniature individual computers using software and hardware to carry out the functions of control.

Specifications of TymaexTM 8226 0820 PLC

The Programmable Logic Controller (PLC) of TymaexTM 8226 0820 Trainer is a tool to lecture students or participants to understand the PLC working principle. The trainer of PLC is planned to be a system complete to teach the participants or students how a function of PLC and to program a PLC with Sequential Function Chart, ladder diagram, Instruction List, Structured Text, and Function Block Diagram. The software of Programming support the following features:
• Ladder Diagram
• Sequential Function Chart
• Structured Text
• Function Block Diagram
• Instruction List

The specifications of Programmable Logic Control (PLC) with:
• Ethernet interface in FEC Control.
• Mounting: incorporated clip for frame of ER mounting or adapters of plug-in for panel profile.
• The connection of electrical by standard 4 mm plugs or min. 4 mm safety plugs.
• The terminal output: status indicated by LED's with min. 8 output.
• The terminal Input: status indicated by LED's with min. 12 inputs.
• Processor: Intel 80186 compatible with min. AM 186 (20 MHz).
• Program memory: Cycles of reading/writing >100,000 with min. 256 kB 16 bit flash.
• Working memory: 16 bit SRAM with min. 256 kB.
• Data storage: retentive data 2 kB in flash memory with min. 32 kB.
• Program storage: flash memory with min. 32 kB.
• Interface Programming: opto isolated in RS232 3-wire 9600 baud.
• Counter : min. 256 and Timer : min. 256
• Another function: Program check, self diagnostic function, Memory protection, and memory back up.
• The voltage of Input/Output: 24 V DC
• Unit has power rail and earth rail bus
• The voltage of operating: 24 V DC
• Inputs - NPN or PNP switchable (optional)
• Programming interface of RS232 or Ethernet
• Documentation contained programming software and programming cable.

System Components of 8226 0820 PLC Training Package

The system contains the following component to offer training package of hassle-free.
Mobile of Workstation Stationary
• Workplace with self-contained to be utilized in connection with the essential equipment in electro-pneumatics and pneumatics.
• Height: min. 1500 mm, Width: min. 1500 mm, Depth: min. 500 mm.
• Involves frame of ER mounting for electrical installation.
• Profile Plate of Aluminums: the size of surface area: min. 500 mm x 1000 mm.
• Structural channels for training components secure and safe mounting.
• The plate using anodized with grid dimension of 50 mm.
• The cabinets of drawer with min. 4 drawers each. Finishing with Mild steel in epoxy.
• Laboratory cables with cable guide.

Unit of Power Supply
• For providing current and voltage to all components of electronic and electrical.
• A relay contact assurances immediate break off the voltage output during the mains voltage is cut off. Additionally, a relay of thermal overload is incorporated in the unit.
• of input: 115/230 V
• The voltage of output: 24 V DC
• The current of output: max. 4.5 A
• Cable connection: min. 1.3 m
• Dimensions: Approx. 200 x 120 x 160 mm,

Universal cable PC adapter
• With USB cable or RS232 cable for software of Win 2000/XP.
Interfaces Unit
• To incorporated analogue and digital inputs and outputs.
• Sockets with min. 2 SysLink to each IEEE 488 for digital inputs and outputs.
• Connector of 15-pin Sub-D for inputs/outputs analogue.
• 24 V operating voltage of safety sockets.
• Additional Profibus- DP interface or MPI interface for CPU S7.
• The connection socket of AS-interface (reserved for ASi).
• A CD-ROM contained in the delivery scope includes examples for STEP 7 training, Profibus-DP and AS-interface as well as explains on valve terminals (DE), ASinterface, and distributed automation with Profibus- DP.
• CD-ROM Documentation.

Positioning Control of FP2 PLC

High-resolution positioning
The positioning unit of FP2 Series has a maximum 4Mpps pulse output and initiates at a high speed of 0.005msec - from the positioning command response from the CPU to the pulse generation. This aids to reach time reduction, low-cost tact and accurate positioning control. The positioning units of FP2-PP4 can control 4 axes in a unit.

Analogue control
The system can do all analogue equipment types with range switching. A resistance thermometer or thermocouple bulb can also be linked directly. The FP2 Series comprises a CPU unit and analogue input and output units set with a port of analogue I/O containing four range-switchable inputs and one output. The system is consequently able to do all analogue control types.

Communication functions
All units of CPU in the FP2 Series have a port of RS232C as standard. This enables a direct link to be made with a PC or a panel of operation display. The interface can also be applied for data transmission to remote locations and upgrading and program amendment if a modem is linked. If the unit of C-NET is joined to the port of RS232C, data can easily be switched over between various PLCs.

PCWAY allows to collect simple information
Data can be simply collected in the PLC by the Excel of “PCWAY” add-in utility. Additionally to straight connections with a PLC and computer, “PCWAY” can also get information from PLCs network or via modem.

Communication port
Both the port of COM (RS232C) and the port of TOOL (RS232C) presented as a standard feature which support communication at 115.2Kbps. This allows high-speed communication when connected to external devices and when transferring programs.

Ample program capacity
Additionally to 16k steps of the ample program capacity for normal use, expansion memory can be applied to expand the program capacity to 32k steps.

FP2 Smart PLC with Numerous Functions

CPU types are offered according to the function.
The CPU unit’s features seven types including the CPU unit of standard type. This guarantees the lots effective use and avoids the high expenses of purchasing the CPU unit and high-function units individually. The CPU with incorporated network function allows the simple, decentralized controller concept construction.

The program capacity and control points number of PLC.
If the type of 14-module is utilized in the expansion backplane and master backplane, the maximum control I/Os number is 1,600. The maximum of 8,192 points can be controlled, when remote I/O is used. The CPU has a 30ns high speed processing per basic instruction, which is at the fastest in its class.
Easy programming
• FP2 is programmable PLC with Control NAiS
• Help files and comprehensive documentation

Powerful and Intelligent instruction set
• The FP2 applies the powerful and proven instruction set used by the Programmable Controllers of Matsushita FP Series.
• Additionally, the FP2 has some powerful and new instructions, for example:
- Math of Floating-Point
- Communication of string instruction
- Instructions of PID Control

Full-scale information networks of FP2 PLC
• MEWNET-W / MEWNET-F
The network of MEWNET-W contains PLCs linked by twisted pair cable to allow data transfer and sharing between PLCs. The network of MEWNET-F contains stations of I/O slave linked by two-wire cable which allows control of remote I/O from the PLC.
• Ethernet
The unit of ET-LAN connects the system of FP2 to the Industrial Ethernet of bus system. This allows access to all appliances of the controller at a rate of max. 100 Mbps.
• PROFIBUS FMS/DP
The master units of PROFIBUS FMS/DP allow the interfaces of open communication.
• S-LINK
The FP2 CPU with incorporated the interface of S-LINK has two terminal ports, the module of S-LINK communication has one port.

Conveyor Control Using Siemens PLC

PLC Type Simatic S7-200 Siemens, Name Input / Output PLC :

INPUT PLC :
I0.0 ; Infrared Sensor
I0.1 ; Push Button Start (Normally Open Contact)
I0.2 ; Push Button Stop (Normally Closed Contact)
--- Link : normally open normally closed contact

OUTPUT PLC :
Q0.0 ; Empty Lightbox
Q0.1 ; Start-Stop on Inverter

PLC Programming for Conveyor Control using Siemens PLC

Please Download Programming for STEP 7 MicroWIN :
Conveyor Control

Reading Ladder PLC Programming for Conveyor Control using Siemens PLC :

1. Conveyor Start
a.If I0.1 = ON AND I0.2 = ON Then M0.0 = ON (Hold ON)
b.If M0.0 = ON AND I0.0 = OFF Then M0.1 = ON
c.If M0.1 = ON Then Q0.1 = ON

2. Conveyor Stop
a.If I0.2 = OFF Then M0.0 = OFF
b.If M0.0 = OFF Then M0.1 = OFF
c.If M0.0 = ON AND I0.0 = ON Then M0.1 = OFF
d.If M0.1 = OFF Then Q0.1 = OFF

3. Empty Lightbox = ON
a.If M0.0 = ON AND I0.0 = OFF Then T37 activated (active for 10 seconds)
b.If T37 = ON Then Q0.0 = ON

Back to : Conveyor Control

Alternative Techniques to Transfer the Variables of 2541 PLC

There are another techniques that can be applied to transfer variables to the standby PLC as an alternative of mapping them into the address space of I/O. The RPM can move V memory blocks with multiple scans. This might be allowed with the program of configuration. The links of high-speed between the PLCs might be configured with the 505-CP2572 or the 2573- MOD or the 2573-TCM2 to transfer memory blocks to the standby PLC.

Transferring V memory’s task codes
This is simply allowed in the RPM configuration program. Choose the V memory block to move and the locations number to transfer. The RPM will use the task codes of NITP in the time slice of communications of the remote I/O transfer to move the V memory block to the standby PLC. This process can transfer 50-100 words each PLC scan. 15 is a minimum value or 8000 is a maximum value might be entered in the 2541configuration.

Client operation of Ethernet TCP/IP
The 505-CP2572 might be utilized in client mode to transfer V memory blocks at a much quicker rate between the PLCs. Remote programming through Ethernet as well as interface functions of operator might be added using this technology.

Events software tracking in the 2541 PLC
The configuration software of 2541 also might provide as a diagnostics tool to help the control engineer when startup and during conditions of switchover. Power on the control system and confirm that the software diagnostics identifies the standby and active PLCs.

Observe the event log for switchover
The event log is practical in decisive the reason that a switchover happens. Use the buried switch on the RPM front to move to the standby PLC. The RPM will move the I/O control to the standby PLC if this has been allowed for the period of configuration. This can be observed in the event log.

PLC using EasyPort USB

The principle of EasyPort USB is simple: the interface of USB is linked to the PC. The connection to the equipment of automation is through standard SysLink connectors. The signals of input and output can thus be interpret into and output from a PC. So that EasyPort can get used to diverse situations, it has developed software for the drivers of device with a graphical user interface, through which connections can be created.

The process models of numerous practical can be managed with the PLC simulation software of EasyVeep® and EasyPort incorporated in scope of delivery. The models are recognized and meet a requirement of broad range. The themes covered contain the following:
• Sluice chambers
• Lifts
• Washing machines
• 7 segment display
• Garage doors
• Systems of Sorting

EasyPort USB 548687 Also order:
With a real process or SimuBox for EasyPort:
• Analogue cable of parallel 529141
• I/O data cable with the connectors of IEEE 488 SysLink at both ends 3 4031 For EasyPort with a real PLC:
• I/O data cable with the connectors of IEEE 488 SysLink at both ends 167106

Generously wirable, for EasyPort, with any PLC:
• Data cable I/O with one connectors of IEEE 488 SysLink and open cable end sleeves 16712

For EasyPort with a PLC board:
• crossover cable data I/O, with 167197terminal socket
For EasyPort with a real PLC or SimuBox:
• Unit with universal connection, digital (SysLink) 162231
• Adapter of EasyPort for plate of slotted profile 549806
• Crossover cable Analogue 533039
• Starter kit of PLC 543081

Technical data
Power supply 24 V through separate screw terminals or through the connectors of SysLink Interface to PC.
• 115 kbaud transmission speed
• Analogue interface: 4 inputs analogue, 2 outputs analogue, socket of sub-D 15-pin, resolution of 12 bit,
• sample frequency 0.5 kHz
• 16 digital inputs, 16 digital outputs on 2 x 24-pin digital interface
• Sockets of Centronics with 8 digital outputs (24 V), 8 digital inputs each (24 V).
• Large LCD display.
• Controllable through Activ-X control from Visual Basic Labview, or C++.

WX/WY Address Space of 2541 PLC

Logic bypass
Sequentially to reduce the program diversion chance, the scan time of backup PLC requires to be less than the main scan time. This is proficient with provisional ladder logic that lets big amounts of the ladder program to be left out according to a status bit from the RPM. The backup PLC scan time can be an order of scale shorter than the main PLC with logic bypassing.

Compute the words number to transfer
Data is transferred in pairs of WX/WY throughout the network of remote I/O. The Home base contains of multiple slots of these pairs of WX/WY. Every slot can move 512 discrete memory locations or 32 V memory locations. We will require to recognize how many total slots of WX/WY will be required to transfer all of the identified important variables. This information will decide the virtual bases number that the RPM will correspond to the system.

Discrete variables of C and Y
These points of discrete I/O can be planned 16 to a V memory location or straight to and from memory addresses of WX/WY. Consequently, every slot can move 512 discrete variables.

Variables of loop
Up to eight loop variables may be transferred to V memory using the instruction of PACK in ladder logic. The instruction of UNPACK might be used in the standby PLC.

V memory
These registers may be straight transferred to address space of WX/WY. Once a V memory table has been updated fully by the active PLC, the ladder logic can utilize the instruction of MOVW to transfer the data directly to the address space of WY. In the stand-by PLC the reverse process is utilized to transfer the data from the address space of WX to a table of V memory.

The installation planning
The RPM may be set up in either the rack for main or standby PLC or even in an external rack if preferred. The connections of remote I/O from both PLCs are linked to the RPM and the associations to all remote physical bases are linked to the front wiring connector on the 2541.

I/O Addresses Module of CTI 2500 PLC

Transfer option address space of WX/WY V Memory
This alternative permits the transfer block of V memory from the main PLC to the Standby PLC via multiple PLC scans. This way may be utilized to move data that has been considered by the user as non-important data. This way is slower than the important data transfer which uses “virtual” WY and WX locations to move data on each PLC scan, but is sufficient for transferring the most data in most applications. The memory of V transfer alternative does not need any extra ladder logic to implement, as the important data move method does.

Enable configuration changes of cycle power on RPM
Since all updates have been finished in the RPM, power should be sequenced to the module of RPM. Firmware discharge V1.4 and higher also permit the module of RPM to be rearrange from the software of configuration. Use APT, TiSoft, or Workshop to configure rest system after the RPM is configured fully, the module have to be reset to fill the parameters configuration into RAM. Using the programming software of PLC, APT, TiSoft, or Workshop, the PLC system rest can be early. There are some functions of library existing from third parties (ISD) to support the programming software of APT.

Log the RPM and the rest of the PLC I/O
The RPM registers into the PLC as an optional virtual remote bases and Home base. Make sure that the software programming and the PLC know the RPM by issuing a command of READ Base. The data recorded for the any optional virtual base and Home base should tally precisely with the information saved in the RPM with the software configuration. Arrange the addresses I/O of every module in the home base and every module in any virtual base with the programming software.

UniOP and Taian PLC Connection

The operator panels of UniOP can be linked to the PLC of Taian TP02 directly to the port of PLC programming. Other option UniOP can be also connected to the port of auxiliary RS-422 existing in all PLC models.

Connecting to the Port of MMI (Programming)
The port of MMI (Programming Port of the PLC of TP02 has two different operation modes):
• Mode of PG (programming)
• Mode of computer link
UniOP can only communicate in the mode of Computer link. Choice of the port of operating mode has to be done using two signals of the port of communication: connecting pin 4 and pin 5 of the connector will choose the mode of Computer link for the port.

The port communication parameters in the mode of Computer link has to be constructed with System Registers in the PLC. The parameters of default communication of UniOP are describe as following:
Stop bits: 1
Baud rate: 19200
Parity: none
Data bits: 8
PLC slave id: 1
UniOP is NOT support communication with no parity and 7 data bits.
To construct the same parameters of communication in the PLC, the set-up of system registers is required as following:
• Register Content: WS041 01000
Description: Setup of Programming Port (it is applicable only while the port is in Mode of Computer Link)
• Register Content: WS042 00001
Description: Number of Slave-station. The value of 0 means Broadcast.

All System Registers are retune to zero when the PLC is switched on for the first time. The values displayed in the table have to be written to the PLC with the programming software of Taian TP12. Use the option menu ‘Edit/System Memory’ of the programming software of Taian TP12 to set the System Registers content. The System Memory Content has to be moved to the PLC to be effective.

Scan Time of Virtual bases on 2541 PLC

Arranging “virtual” bases in the 2541 PLC Series is the similar as adding bases of “real” I/O to the system of PLC. The adding of bases of “virtual” can extensively enlarge the PLC’s scan time. Every base of “virtual” added to the system can include from 15 to 20 ms to the total scan time of PLC. This should be measured when conniving the warm backup system, particularly where scan times of PLC are important to the process.

Update time of setting the 2541 I/O
This setting identifies the quantity of time (in ms) that have to pass by before the module of 2541 logs an I/O timeout and moves control to the Standby PLC if Update of I/O is chosen as a transfer option. Characteristically, it is suggested that this worth be set a little higher than the maximum scan time of PLC projected. There are convinced procedures, for example ONLINE compiles and downloads from APT or ONLINE EDITS from TiSoft, which can considerably enlarge the scan time of PLC during the procedure. If Update of I/O is chosen as a transfer option and the Update of I/O time is place close to the PLC’s normal scan time, after that this might cause the 2541 to change control to the Standby PLC if these processes are applied to the main PLC.

It is suggested that the Update of I/O move option be disabled in the module of 2541 before doing ONLINE downloads or edits to the main PLC to avoid an unexpected control transfer to the Standby PLC.

Enable option of Checksum Match
If this alternative is ENABLED, it should be distinguished that if an edit of ladder is completed in the main PLC then the checksum of ladder match will not pass and the 2541 will consider the Standby PLC not available for transfer. The “PLC ACTIVE” LED consequent to the selected “Standby” PLC will go OFF representing that the Standby PLC is not working. Also, while changes to the main PLC RLL are not transferred automatically to the Standby PLC, any updates in RLL have to be done to every PLC separately.

PLC Feature

Programmable logic controller or usually called PLC is a part of main control system in automation control system in all assembly lines, lighting fixtures or amusement rides. Understanding PLC is very important. It is important to understand PLC, either its hardware or software. It is also important to understand about developing the program in its software or the troubleshooting for any fault in the hardware or software. Programmable logic controller needs to understand in order to be able to operate it and avoid any mistake.

Programmable logic controller is designed for arrangements of inputs and outputs, resistance to any electrical noise as well as vibration and impact, and changes in temperature. To operate the system of PLC, you need software program which is usually stored in non-volatile memory. The operation of the software program must be very careful; otherwise there will be any unintended result that causes damage. You have to carefully pay attention to any input in PLC software to do successful operation. Therefore, you must master all about the software and hardware of programmable logic controller, as mentioned above.

Changing Feature in Programmable Logic Controller
Programmable logic controller is very important in the operation of factory assembly lines and all machines. This surely interest many engineer to develop more advanced PLC. Therefore the design and technology of PLC keep changing and develop overtime. The feature of PLC is always updated to suit the factory and machine need. Engineers try to update the feature of PLC, including the designs, models, sizes and compactness. You can find the new PLC in the market almost all the time so you don’t have to confuse to find one that suits your need. Programmable logic controller is more modern, attractive and interest now.

Advantages of Programmable Logic Controller Feature
There are many advantages that you will get when you use programmable logic controller. First of all, PLC is a device that can stand of all harsh environments whether it is dusty, moist, hot or cold. As mentioned above, PLC is also equipped with arrangements of input and output. They are connected to the device of sensors and actuators. These arrangements of input and output define the success of PLC operation. They are usually set in external modules and then connected by computer network to PLC, but sometimes they are built in PLC. Above all, PLC can read the changes of temperature and pressure. Using programmable logic controller is beneficial for all kinds of industries, especially new PLC with its various features.

The RPM Home base CTI 2500 Series PLCs

The Manager RPM of 2541 Redundant Processor permits the control engineer to make a warm system backup for Simatic® 505 or CTI 2500 Series PLCs. Both the main PLC and standby PLC work in run asynchronously mode. To avoid deviation of the controllers, important variables may be moved to the standby PLC every scan. The main and standby PLCs are physically linked to the remote bases through the RPM. Both PLCs communicate to the RPM via the channel of remote I/O communications. The RPM observes the communication transactions on the link of remote I/O and mirrors the information to the standby PLC when it asks for the status of remote I/O points. The product of RPM shows to the system control as a remote base in the memory map of I/O. Additionally the RPM might be organized as multiple bases of virtual remote. These remote bases include slots of virtual I/O up to sixteen pairs of 32 WX/WY. These points of virtual I/O might be used to move important variables to the standby PLC every scan. The main PLC transfers defined important data to unused address space of WY and the standby PLC transfers data from unused address space of WX to the related data element. Once the important data is mapped to the link of remote I/O, the PLC assurances the data to be moved every PLC scan.

This RPM Home base contains of 32Y and 32X I/O points with an optional 14 sets pairs of 32WX/32WY. The separate inputs offer status information to the main and standby PLCs. The points of input are utilized to steer ladder logic and to check if checksums have changed in the PLCs. The separate outputs are utilized as control bits in the program of ladder logic to start transfers, and to create pulses of “heartbeat”. These pulses are checked by the RPM to notice scan malfunctions or a changeover to programming mode. The pairs of WX/WY are used to move the important variables.

The Potential Problems Use of Modem with Mitsubishi FX PLC

Parameters of Communication Port
The modems were set to 7 data bits, even parity, 9600 baud, 1 stop bit and no flow control.

Potential Problems
1. The newest US Robotics of Black/Grey box Fax modem of Sportster voice 33.6 with personal voice mail has a recognized bug which will reason the modem that responds the call to pick up the call and fall it immediately. This is why the older cream US Robotics of Black/Grey box Fax modem of Sportster 28,800 Fax modem was utilized for the PLC end.
2. The newest US Robotics of Black/Grey box Fax modem of Sportster voice 33.6 with the personal voice mail showed a problem when using a lead phone from a diverse modem so always apply the lead complete.
3. The modem of PLC end may demonstrate a problem with settings of communication after it has been constructed and powered down. This is for the reason that the PLC needs settings of even parity, 1 stop bit, no flow control, 9600 baud, 7 data bits, nevertheless most default of systems to 1 stop bit, no flow control, 9600 baud, no parity, 8 data bits. It indicates that if the AT instructions are set using the incorrect communication settings or if the modem is reset, the modem will not recognize what settings to apply for the PLC connection serial port and will therefore use the defaults which are incorrect for an FX PLC. The way cause of this trouble is that the up to date modems change port of communications settings automatically to ensemble the tool talking to it. In the PLC system will not usually converse to the modem, it will only react when the modem is called, and consequently it does not recognize the settings. This trouble is not normally a problem but if it does obvious itself then the result is to use an extra AT command.

How to Get Your Company Greater

The use of applying programmable logic controller
The use of PLC controllers is common for the recent years. It has existed for awhile but it has just been a popular appliance in a company for the last five years. It is a useful program and controller which can help the production process in a company. Its function will be maximum if it is used in the great amount of production because it can save the production cost so the company will get the more profit. The use of PLC controllers can make the production faster for it is a kind of production line shortcut which makes the production presses simple and effective.

Never think that the use of PLC controllers will need a complicated computer network even though it still involves a special computer program to run it so it can works according to the task. It just needs a common computer not a high specification computer. It can be said that it is simple but you have to know it well. In the first time when you use this controller you have to ask the right person to handle it. The computer experts are the right person. He or she will ensure that the controller will run well to help the production process you ask. In other words the use of PLC controllers will save your energy, your money, and your investment.

What should you do in the use of PLC controllers?
It will be wise to check everything before applying PLC controllers. Preparing for the worst situation is always the best thinking. Understand anything that has to do with your program can be an effective way to anticipate problems. You can solve the problems soon if you are familiar with this program. If you are busy with other jobs, training some persons to anticipate the problems is very good idea. In this way, you do not have to waste your time to call IT consultant to overcome the problems. Though it is simple program, anticipation should take in mind before applying PLC controllers.

As stated previously, applying PLC controllers provides shortcut to your various process. When it is used in industrial sectors, considering human resource is very crucial. Labor union should be involved in the discussion to decide whether this software will be installed. Ignoring this matter can create other problems. Reducing human employee often trigger complicated problems. This software should a factor that increases your company performance, so do not risk your investment by doing careless thing. PLC controllers should be accompanied by wise steps to minimize the problems.

Technical Features of PLC-ANALYZER pro 5

• The acquisition data via the PLC programming unit interface, or via the network/ fieldbus automation
• The acquisition of timer, data word, peripheral, data block, counter, input, output, flag, etc.
• The signal show in word, byte, bit and double-word formats
• Pseudo signals creation
• Added of trigger conditions or additional addresses while recording
• Concurrent acquisition on a number of PLC systems such as SIMATIC S7 + Allen-Bradley or SIMATIC S7 + S5.
• No additional hardware necessary, software solution
• Not necessary modification PLC program
• SIMATIC-PLCs of cycle accurate acquisition
• The signal waveform storage on hard disk
• The signal file creation of trigger-controlled or long-standing recording
• The recording of time controlled signal
• The triggers comfortable definition by drop & drag
• Cascading and AND-/OR logic of substantial trigger features
• Pre-trigger and post-trigger time can be set by customer
• The register values and binary values trigger
• Automatic alarm in trigger event case
• Signal files comparation
• Explore for time, bit pattern, trigger, and edge parallel in more than a signal file
• Measuring of bits and periods of time
• Absolute and relative data time
• Adaptation to physical units and elastic register scaling
• Various of data format such as binary, decimal, hexadecimal, S5-time, date, real (floating point), ASCII
• Using commentaries and symbolic address names the software of PLC-programming
• Automating data acquisition and pre-configuring runs for project files
• Complete project settings Print/Storage for test sequence documentation and measurements
• Signal files printing
• Transfer from signal files such as HTML file, image format, or text file
• Measured values can be imported in text format
• Support S7-PLCSIM
• AD_USB-Box Multilingual ®
• System required: PC with MS Windows 98SE/2000/XP/Vista/7, 256 MB RAM, 1 GHz, 100 MB of existing hard-disk space.

PLC Software Pro 5 from AUTEM

PLC-ANALYZER pro 5 is a software system for acquisition of recorded data and logic analysis on the facilities of PLC controlled. The PLC signals representation, acquisition, and evaluation for example flags, data words, inputs, outputs, etc. is now very simple. Online display creates probable examination of the real time signal waveform. As well for long-standing recording, trigger conditions can be specified for the particular events acquisition. This permits rarely happening periodic errors to be recorded for later on analysis.

On the contrary to conventional analyzers of logic, the PLC-ANALYZER pro 5 contains the important benefit of recording process data throughout the interfaces of standardized PLC. The program e. g. supports TCP/IP Ethernet, MPI/PPI and PROFIBUS for SIMATIC S7 or SIMATIC S5programming unit interface. A personal computer or notebook that is linked for the programming purpose of the PLC can be utilized for data of recording process without modifications of the hardware. The catch up checking cables of tedious process is currently an object of the history. Signals can also be documented from different PLCs at the same time. Recording of cycle-precise is striking due to the measured values complete acquisition in every PLC cycle.

By using the interface measurement of AD_USB-Box® current signals and external voltage, which do not exist in the PLC, can also be documented. Project files create it probable to automate regularly returning acquisition sessions for a variety of facilities.

For a straight incorporation in the AUTEM facility provides the ultra compact Mini-PC of BLACKBOX for long-standing PLC process data recording. Appreciation to the many remote connection possibilities such as modem, VPN, LAN, the BLACKBOX is mainly appropriate for remote service facility. PLC-ANALYZER pro 5 is a crucial tool for software of PLC construction, development, technical service, installation, and training. AUTEM provides a low-cost licensing model with most important and extra licenses for one or more workstations.

The Features of FBs PLC FATEK

The five ports of communication in FBs-PLC can concurrently link to a variety of intelligent peripherals with existing interfaces for example Ethernet, USB, RS232, and RS485. In addition accepting communication protocol of FATEK standard or protocol of Modbus or carrying out communication throughout the server of FATEK communication, the user can also use CLINK controls to identify the dedicated protocol to actively or passively set up the link with any peripherals of intelligent.

Single unit with 16 points of high-speed interrupt
The FBs-PLC offers 16 external interrupts points. The break off is periphery driven and the user can identify which edge triggers the break off and can be negative, positive or both edges. The breaks off can carry out high speed, emergency processing which can endure the time jilter caused by the deviation and delay of the scan time and can be utilized for accuracy high speed RPM, high speed positioning, and machine home measurement applications.

Captured input up to 36 points
The SoC has a confine input function in the FBs-PLC, which imprisons and saves the input external pulse shorter than the CPU scanning time. Evaluated to PLC’s in this class that either be deficient in this capability or need highly complicated break off functions, the FBs-PLC can support this task easily configured with high efficiency, easily as a general input, and no harm the CPU scan time.

Peripherals complete range
Additionally to the 204 main CPU unit models, the FBs-PLC also offers 65 models of development I/O for selection. The modules of expansion I/O contain basic AI/O and DI/O, LED display module of 7/16-segment, 8 thermocouple types, Pt1000 RTD, Pt100 modules of temperature measurement. The FBs-PLC also offers a LCD data of FBs-DAP admission panel which can be connected jointly with a single RS485 bus. The FBs-DAP can be used as a simple human machine interface or it can also be a simple Timer/Counter editor through the function of user message display and definable keys.

Use of modems of MMPlus and DOS MEDOC Mitsubishi PLC

In an effort to reduce the potential problems with the use of modems, this article is projected to make clear how to use and set up modems with MEDOC / MMPlus and PLC’s. This article will also detail which modem types have been tested and that Mitsubishi will advise. Systems tested utilized the PLC’s and A FX series and comprised using MMPlus and MEDOC.

Test Procedure
The systems were tested for down loading and up loading and controlling of test programs with MMPlus and DOS MEDOC. The test procedures were described as following:
1. The modems were set up with the terminal emulator of US Robotics “Quick Link Modem”.
2. The Hardware was subsequently assembled and terminal emulator of “Quick Link Modem” made use of PLC modem.
3. When the connection was recognized the terminal emulator of “Quick Link Modem” was shutdown but the connection or line was left open. This was the cause for using this terminal emulator of “Quick Link Modem”. Windows terminal emulators and other standard terminal emulators seemed to go down the connection when closed down. Hyper terminal of Windows 95 was not fully tested for this capability.
4. When the terminal emulator of “Quick Link Modem”was closed DOS MEDOC or MMPlus was initiated and the port of communications and port parameters were set to equal the chosen system e.g. internal modem was COM2.
5. Program PLC monitoring, up load, and down load was then tested.
6. When MEDOC or MM+ was completed and closed, the terminal emulator of “quick link modem” was initiated, and the line of phone was hung up.
7. It was required to initiate Medoc with the I3 parameter to disable break off driven communications with some modems i.e. the line of start up is MEDOC I3.

The Automation of Programmable Logic Controller

The automation of programmable logic controller offers many advantages to all industries and factories. Hence, they gain popularity in a short time. This is because the automation of the program makes their operation more effective and efficient compared to manual operation. Today, many industries and factories interest to use this automation program considering the efficiency and effectiveness offered by the program. The automation of programmable logic controller makes the system more stable and the result of the product much more precise; thus save the cost of the operation.

The Automation of Programmable Logic Controller the Most Popular Tool
The automation of programmable logic controller is the most popular tool in automation operation. It is popular program because of its efficiency and precision in product results. In addition, this program is popular since it offers flexibility, reliability and saver budgeting. The cost for all operation in industries will be saver especially if this tool is operated by a programmer that masters all about PLC automation from its software to its hardware. Considering all the benefits, it is no wonder if the automation of programmable logic controller becomes the most popular tool for automation.

Becoming a Programmer for the Automation of Programmable Logic Controller
The automation of programmable logic controller does not only offer many benefits for the factories using the program, but also for everyone who would like to be a programmer of PLC automation. A programmer of PLC automation is highly appreciated with high salary. This is because the programmer is an important position in the operation success of PLC automation. Therefore, every company will be willing to pay the programmer high. Thus, for you who are interested in starting your career, a programmer for the automation of programmable logic controller is a good choice.

To be a programmer for the automation of programmable logic controller must be creative and always learn the program as well as update their PLC automation program. This is because the program for PLC automation keeps changing overtime. When deciding to be a programmer, you must prepare yourself to face every changing in the technology of PLC automation. You must also equip yourself with skill and programming language that is getting more complex day by day. However, all your hard work to become a programmer for the automation of programmable logic controller is worth it because you will be highly appreciated with good salary.

Integrated High-Speed Counters of FBs –PLC

The FBs-PLC as standard has up to 4 HHSC(hardware high-speed counters) sets and 4 SHSC (software high-speed counters) sets. The HHSC highest counting frequency is 920KHz (MN) or 200KHz (MC). Every HHSC also has a mask and clear function. There are 8 counting modes which creates the HHSC very efficient and powerful. For instance, if the encoder, operating at 200 pulses per revolution, takes on A/Bx4 mode the FBs-PLC can reach the same outcome that a 800 pulses per revolution encoder can offer. The counter is applied in the hardware so as not to engage processing time of CPU.

Positioning Language of Dedicated NC and PLC & NC Control
NC Position Control is integrated into the FBs-PLC SoC which incorporates PLC+NC control into one unit in sequence for resources sharing and decreasing the data exchange requirement. The position control of NC adopts special positioning command language, which lets programming by electrical or mechanical units and updating control parameters during execution. One single unit includes up to four outputs axes with a maximum frequency is 920KHz (MN) or 200KHz (MC) and prepared with multi-axial dynamic tracking and linear interpolation. If joint with the four built-in HHSC sets, it can reach positioning control with closed loop accuracy.

HST (High-speed timers)
The FBs-PLC is the PLC that only offering 0.1milliseconds of high-speed timers in this class or the FBs-PLC has one of 16-bit and four sets of 32-bit HST. Presently, the high speed timers fastest time base applied in other brands of PLC’s is 1mS. By integrating the break off function of the FBs-PLC the precision of 0.1mS time base FBs-PLC high-speed timer is extra improved and can easily reach more accurate speed detection or can be applied as a frequency meter. On the whole, expensive equipment can be substituted using the economical FBs-PLC.

The Core Technology of FBs-PLC of SoC FATEK's

The design of FBs-PLC’s integrates a “System on Chips“(SoC) built in-house by Fatek Corporation. The chip contains more than 120,000 gates that incorporates powerful features for example a Hardware Logic Solver, CPU, four sets of high-speed counters or timers hardware, five ports of high-speed communication, four high speed pulse outputs axes for NC positioning control 16 high-speed break offs or confined inputs. The FBs stands for high reliability and functionality with excellent value compared to other brand PLC’s in its class.

Instruction sets with user friendly and powerful
The FBs-PLC contains more than 300 instructions which implements a user friendly and multi- structure of output function, with multi-input structure of instruction can develop many functionality types which other PLC’s brands may need the use of a lot of instructions to get this. Also the result of operation can be sent directly to external or internal outputs. The inputs or outputs for every function instruction contain their own symbol of mnemonic connected and the substance of every operand is also showed to increase the program readability. For applications of high-end, for example NC positioning, PLC networking (LINK), and PID control etc, the FBs-PLC offers committed suitable instructions to help in program development.

Communication function
The FBs-PLC’s communication ability is excellent with all five ports working at a maximum speed of 921.6Kbps through the five ports of high-speed communication involved in the SoC. Communications can be accomplished using double-speed binary code or the ASCII code. Modbus TCP or ASCII or RTU or user-definable protocol are also accessible along with FATEK's standard protocol. The FBs.-PLC also offers the choice of eight different communication modules and six different communication boards for a variety of types of applications communication. Every communication port presents standard with LED indicators for reception (RX) and transmission (TX) to allow the user to control the operation.

Programmable Logic Controller Program

PLC program is easy to install. When you want to install it, the first step is downloading this program from PC or laptop which has Internet connection to the PLC. However you have to know that when this PLC program has been installed in PLC, The PC or laptop which is connected to it must be unplugged and the PLC will operate the program itself according to the guide or command which has been existed there. PLC program is generally written in a certain application as well as kept in the PLC and the most important is that it is also backed up in RAM so it can run automatically.

PLC program Language
As a program, PLC program has special language. Five programing languages are the common language for PLC program. The five language which are run in this program are ladder diagram, function block diagram, structures text, sequential function chart, and instruction list. Those five programming language are the basic language for PLC program. However there is one language programming which is most used in PLC program, this is ladder diagram. It is a kind of programming language which has a function to replace electromechanical control panel device in PLC program.

Kinds of PLC Program
PLC program is made by many different manufacturer so this PLC program will always be different from each other. However this PLC program whic is specially made by different manufacturer has the common basic but they will be not interchangeable each other. It is caused by the fact that each PLC which is produced by certain manufacturer has different output and input device, memory, and the set of instruction. Each PLC program needs a different programming language although it is made by the same manufactere. In other words, PLC program is only able its programming language.

You can get a PLC program from Internet. It is easy. You just need to download this free software through Internet. If it needs to be updated you can get the update from Internet too. With the Internet connection, this program is easy to handle if there is a problem occured in this program. So due to this condition, PLC program is now built with Internet connection in. This Internet connection allows the PLC program updated its system online. We can use card since it is provided in many options. We can choose phone modem for the card to make the PLC program connected to Internet.

PLC-ANALYZER pro Accessories

PCI-85 adapter Schneider Modbus+
It is for connecting a PC to Modbus+. The card of PCI-85 links the notebook or personal computer to a network of Modbus+, so that computer programs are capable to swap over data with PLCs of Schneider and other tools in a network.
Improved compatibility and quick installation (Plug & Play-support).
The devices scope: interface adapter card of PCI-85, driver software CD, manual instruction.

PCMCIA-85 adapter of Schneider Modbus+
It is for connecting a notebook to Modbus+. The card of PCMCIA-85 links the computer to a network of Modbus+, so that computer programs are able to swap over data with PLCs of Schneider and other tools in a network.

USB adapter of Schneider Modbus+
It is for linking a Personal Computer or notebook via USB to Modbus+. The adapter of USB Schneider Modbus+ links the personal computer or notebook to a network of Modbus+, so that computer programs are able to swap over data with PLCs Schneider and other tools in the network.

BLACKBOX 2 GSM Quadband Modem
It is for status messages of SMS/E-Mail, well-matched with all communication networks of GSM mobile 1900/1800/900/850 MHz, link and power supply through USB-interface. Technical data:
• Dimensions (DxWxH): 62 x 59 x 20 mm
• Range of operating temperature: -20°C to +70°C
• Interface: high speed USB: 2.0

Interception interface of RS232/V.24 T for sioCHECK®
It is for monitoring both partners of communication of a data link RS232/V.24. Interception interface of 25-pin Sub-D, all of the 25 pins 1:1 loop-through. The pins of data and status are linked to the PC interception through 2 serial data lines directly.

TTY (20 mA) T-interception interface
It is for monitoring both TTY-data link communication partners. Internal conversion TTY RS232, it is not necessary external power supply. 15-pin Sub-D jack/plug on the front side of SIMATIC S5 compatible, Pin 2+7 are DC isolated from the checking PC by optocoupler. It is including two serial data cable 9 -pin and Sub-D plug/jack.

MicroSmart Series PLC from IDEC

IDEC Corporation is an initiator in the field of micro-PLC, they offer programmable logic controllers (PLCs) of MicroSmart series, the newest in the PLCs Micro family. These adaptable, flexible PLCs are as solid as they are powerful, so you can make the system you want without rising your budget or your space requirements.

The Right CPU For You
CPUs of MicroSmart are offered in two modules types, All-in-One and Slim. The type of All-in-One has models with 24, 16, or 10 I/O points; the type of Slim is offered in two 40 I/O modules and four different 20 I/O modules. Each module of CPU is only 70mm deep and90mm in height, but it has incorporated inputs and outputs as good as standard features such as counters with high-speed, and an analog potentiometer. Select the CPU that’s right for you and see what MicroSmart must offer.

Expand Your Control
The type of Slim and the 24 I/O All-in-One type CPUs can increase into the perfect system using the elective development modules. Require More outputs? more inputs? Some of both? There are 18 existing expansion modules, including four modules of analog I/O. You can make a system with as many as 264 I/O points depending on your CPU.

Customize Your System
When you have all the control you want, choose the features you need. Save and transfer programs on the cartridge of memory or install a clock of real-time and calendar cartridge. Add another port of communications or a module of HMI — it’s all likely with MicroSmart. Make the ideal solution for all of your appliances, precisely the way you need it.

Pulse Output/Trapezoidal Control
Autonomous dual-axis control is offered with two pulse outputs. The values of locational can be simply defined for accurate positional (trapezoidal) control.
* Output instruction of pulse
* Instruction of PWM

Interface Terminals of Maple Systems’ HMI5000 Human/Machine

Interface Terminals of Maple Systems’ HMI5000 Human/Machine (Maple HMIs) communicates with Omron CS1 & CJ1Ethernet Series PLCs with the protocol of FINS. The Maple HMI is the master in a point-to-point single slave format, single master when configured with EZware.

Cable Communications
The Maple HMI can be linked directly to the port of FINS on the PLC. A communications list cables provided by Systems of Maple, as well as instructions of cable assembly to help you in assembling the communications cable, are accessible in their website.

Accessible PLC Memory
Register Memory
The register memory of PLCs ranges that the Maple HMIs are capable to access. Please take note that your memory range of PLCs may be smaller or larger than that supported by these HMIs. The register memory can be showed in format of 16 or 32 bit on the Maple HMI.

Discrete Memory
Please take note that your memory range of PLC’s may be smaller or larger than that supported by these HMIs. The discrete memory can be showed in format of single bit on the Maple HMI. Use the following syntax when accessing bit data in the field of Device Address: The bit value have to contain the leading 0. For instance, the Device Address field would contain: 508 to address bit 8 in word 5

Important Memory Considerations
If your memory range of PLC’s is smaller than the range supported by the Maple HMIs, it is probable to construct the HMI to check a memory address of PLC which does not exist. Because this can cause changeable results, when you construct the HMI so make sure that all chosen PLC memory addresses are applicable for your PLC model. Do not construct the HMI to write to any memory address of PLC if that exacting address should only be written to by the PLC.

All About PLC processor

PLC processor is the most essential component to be achieved while people are applying that device. Claimed as one of the sophisticated technology product, this device’s potentially functioned to control the machine or process. In reality, it has been contributing highly for the development of robotic while in the same time several industries from greater aspects of life are relied on this ability to have this application. Its flexibility is owned by this device so it can change easier the program with no alteration, particularly for control algorithm which usually hardly to be implanted by other devices. Its ability for handling complex task is another point plus grabbed by this device maximally which makes the relation between the input and output of PLC becomes more accessible to be communicated to the users.

Choose the right PLC processor for avoiding mistakes
Seeing how important processor for PLC, it can’t be denied that it has been one of the main components of the PLC. The rest of them are power supply, memory, input and output unit. Make sure that you’ve chosen the right and best processor while you’re applying PLC. Once you haven’t, you may face something problems with your PLC processor specifically and PLC generally. You may need additional budget for fixing and making modification for the wrong processors. When it gets worse, you perhaps have to purchase the new one if it fails to be repaired. If it happens, you’ll spend much more money for doing that.

Selecting PLC processor
You’re encouraged to select PLC processor with its ability of strong signal so it’s able to have good communication between peer-to peer. Get linked to complex application, this processor is giving its huge contribution related to program and data memory. Make sure that you’ve adequate both program and data memory so it’ll influence performance of the PLC. Please estimate with right calculation so you can achieve the best result and no need to modify to save some amounts of expenses.

You’ll be easier and simpler to make programming when it’s already provided on the processor’s software. At least you’ve got the references and reduce some complicated process while it’s already provided there. For that reason, you’re pleased to ask the experts about the possibility of the processor before starting to make program. To select the best PLC, you subsequently consider several reasons, including estimating exactly PLC processor to avoid the mistakes which bother the whole programming you’ve done.

The Variables of CTI 2500 Series PLC

Unexploited physical bases might be selected as virtual bases in the RPM. Every of these bases of virtual contain of sixteen virtual I/O slots of 32WX/32WY. Every slot might be utilized to plan vital variables into the communications link of remote I/O. Computing Home base, the virtual bases maximum number supported is 15 minus the number of physical bases.

Determining the critical variables
Data is moved between every PLC every scan to maintain the programs from deviating. The data moves will avoid undesirable performance in the backup PLC in the switchover event to the backup PLC. For example, we desire to prevent any I/O from being knocked. High-speed counters have to protect current counts. The sequencer current of drum steps and current calculates of the step should be moved. Any linking control relays that straight influence outputs will also require to be moved. Any computations that result in straight control will also require to be transferred. The good practice is to transfer all “Y” output and “C” control relays.

Retrofitting an available program
Observe the existing ladder program and decide which variables are significant to the system. Added ladder logic will be needed to move these variables to a memory table of V. These amends will be added to move data to memory of V and then to move to WY addresses. significant variables might be moved to a memory table of V or straight to a WY address. Every defined variable in the PLC will require to have extra ladder logic to move the register for transfer. Additionally the ladder program will have to be distorted to get the variable when in mode of stand-by and renew the register in the PLC. In the lively PLC the variables are moved from the PLC to space of the WY address.

The Application of Bluetooth with PLC System

With the Bluetooth distances of up to 100 m can be securely and simply conquer at data rates up to 720 kbit/s. Simple configuration, low energy consumption, and encrypted communication make Bluetooth the perfect transmission technique for applications of medical. Connections of cable according to RS232 can also be reinstated by Bluetooth and its enable devices. Nowadays the target products in the marketplace include:
1. Audio Peripherals of Intelligent Devices:
• Stereo Receiver
• Headsets
• Speakers
2. Peripherals of Data:
• Cameras
• Digital Pens Mice
• Keyboards
• Joysticks
3. Applications of Embedded:
• PCs
• Phones Cellular
• PDAs
• Printers
• LAN access points
• Cars: controls power lock
• Updates of Grocery store
• Systems Closed
• systems Industrial
• instruments of MIDI musical

The Usage Models covers the below appliances:
• Speakerphone for Computer
• Cordless Computer
• Instant Postcard
• Hidden Computing
• Conference Table
• File Transfer of Computer to Computer
• Networking Dialup
• Synchronization
• 3 in 1 Phone
• Headset Ultimate

The Bluetooth Characteristics module and link may be reviewed as:
• Encryption
• Low power
• Low cost
• Extremely small
• Unlicensed of radio band 2.4GHz
• Industrial, Scientific, Medical band
• Used by Home RF, Microwave ovens …
• 1 Mbit/s Gross data ratef
• Mixed data/voice paths

Programmable logic controllers are the basic building block required in a lot of applications in home appliances monitoring and control, industry, security systems, and data acquisition. Generally a PLC may be either μ-controller based system or PC (Personal Computer) according to the application. It lifts up digital and analog signal from attached transducers applied to calculate the quantities of physical to be controlled. Then, these signals are processed digitally with suitable software in sequence to make the signals of digital control required to complete the control process.