preacher.ca
Lifetime Supporting Member
Good day and Merry Christmas Eve.
The title's error has been dogging me for roughly a month and today I finally figured out what the issue was.
Background:
-Communicating between two Controllogix L63 controllers through ControlNet (1756-CNB).
Issue:
-When I add the remote rack 1756-CNB to the IO Configuration, a yellow triangle appeared with "Service Request Error: Invalid mode/state for service request". Which prevented me from generating Produced/Consumed tags between the two controllers.
What I tried:
-Multiple scheduling, downloading, deleting, swapping modules, etc etc.
-Searching through "1756-PM014L-EN-P" manual.
-Multiple forum searches.
What worked:
-When creating the remote 1756-CNB module, under the General tab, it asks for Comm Format. Select "None". I was selecting "Rack Optimization".
Why this worked:
-At this point, I do not know. Maybe you can't optimize another rack that has a controller in it? Any one with an alternative reason, feel free to post. Otherwise this is resolved.
Happy New Year as well!
The title's error has been dogging me for roughly a month and today I finally figured out what the issue was.
Background:
-Communicating between two Controllogix L63 controllers through ControlNet (1756-CNB).
Issue:
-When I add the remote rack 1756-CNB to the IO Configuration, a yellow triangle appeared with "Service Request Error: Invalid mode/state for service request". Which prevented me from generating Produced/Consumed tags between the two controllers.
What I tried:
-Multiple scheduling, downloading, deleting, swapping modules, etc etc.
-Searching through "1756-PM014L-EN-P" manual.
-Multiple forum searches.
What worked:
-When creating the remote 1756-CNB module, under the General tab, it asks for Comm Format. Select "None". I was selecting "Rack Optimization".
Why this worked:
-At this point, I do not know. Maybe you can't optimize another rack that has a controller in it? Any one with an alternative reason, feel free to post. Otherwise this is resolved.
Happy New Year as well!
