I am looking for what type/setup of Read/Write command in RSLogix 5000 to be used with the NI Ethernet I/P Driver

[jabcae]

I am working on trying to get LabView to communicate with an Allen-Bradley Compact Logix PLC using the NI Ethernet I/P driver.  I am currently getting errors on both system of a CIP Message instruction error and cannot determine if the problem is in the PLC or the NI.  At this time we are leaning toward the PLC, thus I was wondering if anyone new what type/setup of message read and write to utilize.

[teritask]

I have only had success connecting to RSLogix using RSLinx OPC server which is pretty simple. Haven't tried the Ethernet I/P driver yet. I was just browsing and found this link:  https://decibel.ni.com/content/thread/7483

The link is in the NI Community, NI Labs, Discussions. You should be able to find something there.

[jabcae]

supposedly the Ethernet I/P driver should be simple and make string tags available.  This would open up more flexibility between the two software/programs.  NI supplies examples on the NI side but I still have errors and am looking for something on the PLC side.

[tcap]

Hello jabcae,

Thank you very much for posting your questions.

I recommend posting to the PLC Manufacture’s forums.  They will be able to provide more insight on the PLC code.

I also recommend posting this question to the Industrial Communications forum:

http://forums.ni.com/t5/Industrial-Communications/bd-p/260

That forum is monitored by the developer’s of the EtherNet I/P Toolkit. They will be able to assist with the LabVIEW programming.

Regards,