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
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 ?
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