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Cannot view EM4800 channel real time data via OPC - Logical Device real time is not easily accessible via OPC

Published date: 13 June 2019

Issue
Running the Managed Circuit on the multi circuit desired to create logical devices for the individual circuits and expose each circuit readings real time via OPC

Product Line
Power Monitoring Expert - all versions including 9.0

Cause
As we know our driver names the measurement for sub cicruits as, for example, Voltage A-B@!!Device_Name!!_P01_Meter.  OPC cannot replace the !!Device_Name!! as our Vista or Designer does. So the OPC client will see exactly it was configured. And then no value.

Resolution
OPC and EWS does not support register labels which have @ symbol in them used to create downstream sources needed in multi circuit devices. This is true for all multi circuit devices including BCPMs.
 

 


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