Re-Enabling a Disabled PLC connect OPC tag
I was wondering whether anyone have any experience in Re-Enabling a Disabled OPC tag. The OPC tag was been disabled by the operators and now they want to re-Enable it back.
I searched in the alarm list to find the previous instances of this tag and couldnt find any. Any thoughts on resolving this issue will be much appreciated.
Alarm List filtering permit filtering for disabled alarms only.
Hence, you could create a dedicated alarm list (somewhere) filtering only for disabled alarms, right click the disabled alarm and select "Enable selected".
Alarm disabling can be restricted in two ways:
1) Remove (from the user) or alter the (in system) required permission level
[Aspect System Structure]Aspect System Structure/Alarm and Event Presentation/Alarm and Event List/Alarm and Event List
2) Turn off disabling of alarms (entirely) on the Alarm Collection Definition for that OPC AE server (Ads = PLCC) or all.