Communicate Compactlogix L320ER to ControlLogix L73

AlfredoMtz

Member
A
Join Date
May 2021
Location
Queretaro
Posts
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Hello!

I'm struggling communicating a L320ER PLC through MSG Instructions, specifically I'm struggling with communication paths, I tried different methods but nothing seems to work.

The funny thing is that if I click "Discover modules" the L73 PLC shows but once I create the module it sends a time out as if it's not communicating.

Any ideas?:confused:

Thank you!

Captura de pantalla 2023-06-01 154920.png Captura de pantalla 2023-06-01 155304.png Captura de pantalla 2023-06-01 155332.png Captura de pantalla 2023-06-01 155502.png Captura de pantalla 2023-06-01 160208.png
 
mike3475 said:
you need to install AOP (added on profile) for 1756-RM2/A, i can download it from Rockwell website.
Click to expand...
Why? As far as I know it's not necessary to install AOPs to send messages through ethernet, I have other PLC messaging the control logix and I had no problem, but it's the first time for me using a L320ER
 
I ran into the same issue and after reading the msg help file, one small detail I missed is you have to cycle the power on the Plc after downloading the logic change, and it worked for me.
 
Without seeing you code, I would guess two things:
- You added EN2T with "Rack Optimization" (default) then it should be set to "None" for Produced/Consumed tags.
- You are using Unicast, that is not supported by the Redundancy.
 
Timlindz said:
I ran into the same issue and after reading the msg help file, one small detail I missed is you have to cycle the power on the Plc after downloading the logic change, and it worked for me.
Click to expand...

Contr_Conn said:
Without seeing you code, I would guess two things:
- You added EN2T with "Rack Optimization" (default) then it should be set to "None" for Produced/Consumed tags.
- You are using Unicast, that is not supported by the Redundancy.
Click to expand...


Thank you for your answers, the solution was to do a power cycle. 🍻
 
Last edited:

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