Ajbenny2525

Message between CJ2M to CompactLogix L23E

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I have a five Allen Bradley’s working on Ethernet/IP network and I want to add a Omron CJ2M to EIP network. I just want to read/write to one of the CompactLogix plcs l23e. I’ve very new to Omron plcs. Can I just set it all up on the Omron PLC to read an array of INTs in the CompactLogix and write to an array also?

Any ideas? Struggling to find a manual on this

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Thanks I’ll give this a try. When you add a new module to ab plc(generic module pg32) do you know if that effects the original eip network? Or is it just some type of path that has to be set up for the Omron?. 

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It's just a path.  But not sure you can add it online, it might require you to do a full download of the program to each AB PLC.

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I have it done so far but i,m still getting errors? Any Ideas?

Omron.JPG

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Check the node number on the front of the module.

It should match the last octet of the IP address.

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I seem to have everything configured correctly. The Node number is correct on plc. Ive tried to change changing assembly instance. 

omron1.JPG

omron2.JPG

omron3.JPG

omron4.JPG

omron5.JPG

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Its ok I got it. For the Output assembly in AB plc I was adding in the Dummy tag of four bytes which I shouldn't of. Input assembly 101 = 4 and output assembly 100 = 3.

Thanks Lads

 

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Yes, there is a Run Idle Header of 4 bytes that is on the front of the AB Output assembly.  The input assembly on the Omron side needs to be 4 bytes larger than what is shown on the output assembly side in your picture above.  

 

This quickstart shows how to do it:

CJ2 to CompactLogix Implicit Messaging Quickstart.pdf

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