NV_PLC

AB CompactLogix L32E Connections

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Hi Everybody,

I would like to get the Connections from an AB CompactLogix L32 with CIP. I can see these connections on the web interface.

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According to the CIP Vol1 v3.3 documentation I have created a reqest in java which requests the first instace of the  Connection Manager Object with Get_Connection_Data service.

I captured the sent and the received packets with wireshark.

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I would like to ask the following:

1.) Is this the correct way to request the connections from the PLC with CIP?

2.) The response says that "Service not supported", is it possible that the PLC does not support this service or there is problem with the request?

3.) Is there any other way to get the connections (I/O and Message) from the PLC with a CIP reqest?

Thanks for the answers in advance.

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