defcon.klaxon
Lifetime Supporting Member
Hey guys,
I'm getting comms set up on the wastewater side of the project I'm working on, and getting a comms error on one specific site that I can't figure out. I'm using the exact same method at all the other remote sites without error, and Google search results haven't been very helpful with this particular error code nor Rockwell literature.
What's happening at one specific site is that as soon as I enable the MSG, it comes back with an .ER bit, and the error is 16#0005 - Class or instance not supported.
The polling PLC is a 1756-L72 ControlLogix with a 1756-EN2T ethernet module. The remote PLCs are all 1769-L24 CompactLogix controllers, minus one other 1756-L72 with 1756-EN2T (which happens to be the one site that isn't cooperating, which might be odd except that on the water side, I have ControlLogix to ControlLogix comms without any issue with identical code). I'm using CIP Data Table Reads and Writes.
Any ideas on what could be causing this issue? I'm stumped, as the exact same code works on the water side, and for the rest of the wastewater remote sites.
Thanks!
I'm getting comms set up on the wastewater side of the project I'm working on, and getting a comms error on one specific site that I can't figure out. I'm using the exact same method at all the other remote sites without error, and Google search results haven't been very helpful with this particular error code nor Rockwell literature.
What's happening at one specific site is that as soon as I enable the MSG, it comes back with an .ER bit, and the error is 16#0005 - Class or instance not supported.
The polling PLC is a 1756-L72 ControlLogix with a 1756-EN2T ethernet module. The remote PLCs are all 1769-L24 CompactLogix controllers, minus one other 1756-L72 with 1756-EN2T (which happens to be the one site that isn't cooperating, which might be odd except that on the water side, I have ControlLogix to ControlLogix comms without any issue with identical code). I'm using CIP Data Table Reads and Writes.
Any ideas on what could be causing this issue? I'm stumped, as the exact same code works on the water side, and for the rest of the wastewater remote sites.
Thanks!