Ethernet/IP Adapter - communication only work one way

[Mattias_Ericsson]

Hi,

We try communicate between an AB ControlLogix L71 and the Ethernet/IP toolkit in LabVIEW using the slave adapter. We run the Create Assembly Instance example, without any modifications. The good thing is that we can send data from the LabVIEW example and receive it, but it seems that we can't receive any data from PLC to the LabVIEW example. Firewalls have been disabled. Size and assembly instance should be correct. See attached screen dumps below.

Any ideas of how to solve this and what the problem might be? All VIs are locked in the toolkit, so it is hard to debug.

Best regards,
Mattias

[Aix-La-Chapelle]

Hi Mattias,

Apologies you have not received any response.  Are you still seeing this issue?  Are you seeing an errors or is the data just not appearing in LabVIEW?  There wouldn't be anything further to see in the subVIs of the toolkit to help with the debug process.  The best is for us to have the entire wireshark trace.  Could you post the Wireshark capture?  

Thanks!

[Mattias_Ericsson]

Hi,

Actually, problem solved. We forgot about one rule in Logix: Test Mode of PLC is not for tests. I changed Mode of PLC in to RUN mode (when I started to test other things) and "Dummy" program started to show the data from PLC.

Everything works fine now.

/Mattias