AB Micrologix PV PID Issue

RS Haldini

Member
Join Date
Sep 2014
Location
Richmond VA
Posts
4
I cannot get the PV to show up in the Setup Screen of a PID instruction using Logix 500. I am using N7:0 as the Process Variable integer word. I have tried in both a ML1500 and ML1400
 
Explain what you mean by "show up".

Post your program if you can. Its .RSS file, zip it first.
 
same problem.The scaled value of PV is showing in the logic outside PID setup correct wheras in PID setup screen the PV value is proportionately small..Any soultion ?
 
Keep in mind the Set point and the PV must be the same units in a PID control
PSI , Level or just raw numbers the PID control will do whatever it need to do too by changing the output to make the PV = Set point within the range
 

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