Connecting multiple Omron CJ to kepware not working

Question

Hi

We are trying to connect new PLCs to a kepware server. The PLCs are Omron CP1L and CJ2M models.

We already had one CJ2M PLC connected to ignition and it is already working, but it's the only one working.

Wen we try to connect them directly to Ignition it works and we can read tags. On ignition we are using the default values for the nodes.

Why would it not work on kepware?

Sometimes one of the test PLC we were adding to Kepware worked but it caused the already working CJ2M PLC to stop working. So it seems we can only connect one Omron PLC at all time on kepware.

I saw a documentation that talked about multihoming on the host server, would that be worth a shot or is there something I'm missing?

Note that all PLC are on a separate IP address and channel on Kepware. Also, Ignition and Kepware are running on the same server.

FP_10999282 · Accepted Answer

Solution was to keep the single IP adress/network adapter on the kepware server side and put each PLC in it's own channel / device and connect each device to a different unique port.  If we kept the same port number for all the devices, then we would have needed multihoming on the server.

cmorehead · Answer

@FP_10999282

You are on the right track with multi-homing. Please take a look at the Kepware knowledge base article in the following link which has an embedded link with instructions on multi-homing:

Article - CS308340 - How to communicate with Omron devices through separate Omron FINS channels in PTC Kepware Products

Thanks,

*Chris

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