MorphuisOGrady
Member
I am summing some variables across several CLX PLCs to display at SCADA. The problem is on a comms failure of a single PLC results in a wireframe on tag at SCADA. This is not desirable since this could occur for maintenance etc.
I am now using derived tags to sum some variables across several CLX PLCs to display on SCADA.
This corrects the problem somewhat but now on loss instead of wireframing the derived tag does not update.
Example PLC1 TestTag=20 PLC2 TestTag=20
DerivedTag=40. If I pull the comms on PLC2 I would expect the DerivedTag=20 but it remains at 40.
Anyone have any suggestions?
Please note I have a lot of macros running and if possible would like to avoid going down this road.
I am now using derived tags to sum some variables across several CLX PLCs to display on SCADA.
This corrects the problem somewhat but now on loss instead of wireframing the derived tag does not update.
Example PLC1 TestTag=20 PLC2 TestTag=20
DerivedTag=40. If I pull the comms on PLC2 I would expect the DerivedTag=20 but it remains at 40.
Anyone have any suggestions?
Please note I have a lot of macros running and if possible would like to avoid going down this road.