If you have PC and PLC how do they communicate by means of hardware and software if e.x: I have Siemens PLC s7 300, 400 and Allen Bradley RX LOGIX 5000?

Question added by Shajath Ali , Senior Engineer , Megha Engineering and Infrastructure limited
Date Posted: 2016/04/10

Upvote (0) Views (7) Followers (2) Answers (2) Report Question

by ashwin raja , automation trainer , karunya university

in case of siemens plc s7300 and s7400 commnication is done by ethernet or mpi

by Hasan Zainy , Control / Instrumentation Filed Service Engineer , GE

in general

you can connect between two control system by hard wire such as relay in on plc and concoct input in other

also you can use modbus or opc to interchange the data by software

How do you select best PLC if you have brands of PLCs e.x: Allen Bradley, Siemens?
Top Answer: The Brand's selection is done according to Place of installation. If the PLC system to be installed in o ... See More

Answers (19)
Is it possible to connect 2 Siemens PLCs (S7-300) using gsm signal (SIM Card)?
Top Answer: I don't know if there's a specific module for the s7- but if you want to experiment I would suggest using ... See More

Answers (1)
What is the difference between s7 300 and s7 400?
Top Answer: <p>that's right thanks</p> See More

Answers (8)
Which software is used to create ladder logic in Allen Bradley PLC?
Top Answer: For Allen Bradley we do have variety of Software use depending upon the type of PLC. for SLC 500 and PLC5 ... See More

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