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Interfacing between s7300 and s7 400
  | Posted by Muhammed  on 2 May, 2012 - 4:29 am |
I need to interface my existing PLC S7 300 with New S7 400 PLC as this is mainly an expansion project.
I just need to use IM351 interface module for interfacing and communication processor. Do I need more for sending or receiving signal from S7300?
quddus_ie@rediffmail.com
I just need to use IM351 interface module for interfacing and communication processor. Do I need more for sending or receiving signal from S7300?
quddus_ie@rediffmail.com
| Posted by Wiwi Hartono on 23 May, 2012 - 3:58 am |
You could interface S7-300 and S7-400 quite easily via MPI because every S7 PLC has default MPI port.
Simply connect two PLCs via MPI and define the Global Datas between the two PLCs in SIMATIC Manager and you are set to go.
Some S7 PLC has Profibus DP port and you could easily interface two PLCs via Profibus.
In the SIMATIC Manager, there are Function and Function Block available for you to send and receive data between 2 PLCSs.
Of course, if you have CP (Communication processor) module for e,g, profibus, you could program to interface via the CP module.
Hope this help.
Simply connect two PLCs via MPI and define the Global Datas between the two PLCs in SIMATIC Manager and you are set to go.
Some S7 PLC has Profibus DP port and you could easily interface two PLCs via Profibus.
In the SIMATIC Manager, there are Function and Function Block available for you to send and receive data between 2 PLCSs.
Of course, if you have CP (Communication processor) module for e,g, profibus, you could program to interface via the CP module.
Hope this help.
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