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CP343 - MODBUS SERVER with multiple connection via port 502

6/12/2013 1:18 PM	Rate (0)
zsantino Posts: 1 Rating: (0)	Hi, I have a S7-300 with a CP343-1 in server mode. When i trying with 1 modbus client simulator , it's ok but with 2 or more it's not good.... Configuration : - CP is server (passive connection) - Port 502 as local port - unspezified TCP connection - All the modbus clients (3) can establish a connection via port 502 ... to the server. The CP343 don't support multiple connections (multiport-compatible) ? I have found the list of the CPU multiport-compatible but not for the CP .... https://support.automation.siemens.com/WW/adsearch/resultset.aspx?region=WW&lang=en&netmode=internet&ui=NDAwMDAxNwAA&term=multiport-compatible&ID=34010717&ehbid=34010717 Have you the list of the CP multiport-compatible ? Thanks for your answer
zsantino Posts: 1 Rating: (0)
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6/12/2013 1:34 PM	Rate (0)
Sakura Silver Member Joined: 9/22/2010 Last visit: 2/10/2025 Posts: 225 Rating: (28)	Hello zsantino, you can find the information atS7 OpenModbus/TCPin the tab "Technical Data". The CPs marked with "(*)" support the multiple port 502. Regards Sakura

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6/28/2013 6:25 AM	Rate (0)
edsel lin Posts: 80 Rating: (1)	Have you tried to differentiate the connection ID? It should be possible.
edsel lin Posts: 80 Rating: (1)
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