Wednesday, February 22, 2012

Communications Possibilities of the Micro PLC SIMATIC S7-200





Communication at every level for networking, remote control, service and more: The SIMATIC S7-200 Micro PLC communications possibilities are unique. The RS 485 interfaces built-in can function at rates of data transmission up to 187.Kbps functioning as below:
• As a bus system with a max. of 126 stations. It is possible to devices of network programming, products of SIMATIC HMI and SIMATIC CPUs with no a problem in this capacity. The incorporated protocol of PPI is utilized for pure networks of S7-200 supporting multiple masters from a single port. The CPUs of S7-200 are incorporated as MPI slaves in a Siemens components network consisting SIMATIC HMI, SIMATIC S7-300/400 and etc.
• In mode of Freeport with user-specific protocols e.g. ASCII protocol. This SIMATIC S7-200 is open for any associated device; for instance, it allows connection of a modem, PC, non-Siemens PLC, barcode scanner and many more.
• The Library of Modbus RTU integrated in the package also allows connection to a network of Modbus RTU as a Slave or a Master.

PC Access of OPC Driver
PC Access is the perfect basis for exchange of data between S7-200 and a linked PC – regardless of the communication link chosen such as Ethernet/IT, modem, CP PPI. PC Access presents you the writing or reading S7-200 data alternative with Microsoft Excel, or any other application of OPC client as an OPC Server. It can be applied for Win CC, WinCC flexible RT, ProTool Pro, etc as an OPC Client. The configuration, monitoring and programming can be realized from a central location, saving both money and time with capability up to 8 connections.

The module of Internet Technology CP 243-1 IT also presents you fast access by allowing an easy universal the PLC connection to diverse computers by means of HTTP, FTP, JAVA, and e-mail. The module of Ethernet CP 243-1 enables you to access process data of S7-200 quickly through Ethernet for archiving or further processing.


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