Assembly lines of factories or controlling machines can operate automatically for many different processes through PLC work. PLC is the short for programmable logic controllers. It is a device that controls automation of processes in factories and comprises a programmable microprocessor. To operate the program, it uses several special computer languages, such as ladder logic, Basic or C. The program is usually written on a computer and downloaded through a connection of cable onto the PLC. Factories using PLC get many advantages. They make the operation systems on factories simpler and more controllable. The automation systems on factories at early times had to use many thousands cam timers and relays while PLC is a single controller that can manage these thousands timers and relays. The PLC working on today’s operation systems of factories can manage many functions, such as controlling basic relays, motions, processes, networking and distributed systems.
PLC Working and Its Main Components
PLC needs several components to support its operation systems. The components are a wide range of input and output (I/O) ports. The I/O ports are usually based on RISC (Reduced Instruction Set Computer). The ports are designed to arrange the usage of real time. In addition, they also have to stand of any hard environment. PLC working will operate properly when the I/O ports are designed correctly. Every circuit of PLC can monitor every status of input that is multiple sensors. The multiple sensor inputs usually control everything like solenoid, valves or light and display. That is why controlling PLC working is a must so that the operation system in factories can run well.
PLC Working and Its Operation
PLC working actually operates in a very simple way. As previously mentioned, PLC needs several input and output ports to operate. The ports are then connected to the devices that are used to control the processes in assembly lines of factories or industries. The devices connected to PLC may include push buttons, limit switches, solenoids, motor starters or pressure transducers. The input and output ports also connect to CPU. The CPU has several tasks. They are including reading the input data, executing the control program and updating the output devices. The processes done by CPU has to be in order just like have been previously mentioned. When the process is done correctly, the usage of PLC will be successful. That is why; designing a proper PLC working must be very carefully and thoroughly.