Red Lion Modular sticking

Daddymathis

Member
D
Join Date
Feb 2016
Location
Georgia
Posts
1
I'm using Red Lion Modular PID controllers with Automation Direct Productivity PLCs and HMIs. I have 10 heating zones, each with their own module.

Yesterday, I was called in because the operator was unable to change the setpoint for one zone via the HMI. I tried reseating the module, restarting the HMI, but what did the trick was when I cycled power to the Red Lion controller. It was fine after that.

What could cause this? I hate it when my explanation is "It just froze up". :confused:
 

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