Controllogix analog output not reaching 20mA-FAT in few days, pls help
Hello,
Please my system FAT is scheduled for this week (in few days).
Please i need some help on how to get acccurate values current (4-20mA) at the analog output terminal of controllogix analog output module 1756-OF8H. I need to use PID block later but want to be sure the output module will give me accurate current value from 4-20mA as expected by forcing in the tag monitor window online.
Here is what i have done to date
Slot 0-L61 processor
Slot 1-ENBT ethernet module
Slot 2-IF16H analog input module
Slot 3-OF8H analog output module
Configuration tab of OF8H has
high signal=20mA
low signal =4mA
high engineering=100
low engineering=0
output range=4-20mA
HART check box not checked.
Any time i go online and enter a 100 in the Local:3:O.Ch0Data field in the controller tag monitor window, it gives me 4ma and if i enter 0 it gives me 0.8mA.
It seems to be holding 4mA as highest value. I tried same on all channels with same result.
Please help, its driving me crazy!