ActiveGroup - property of object PmOpcClientData

It informs the OPC server about using the data group by the OPC client
ActiveGroup As Boolean
oClientData.ActiveGroup = true
Property access for read and write. The preset value of this property is defined in the "Active after start" configurator of this object.

The data group of the OPC client (PmOpcClientData object) that has this property set to false, informs the OPC server about not using these data at the moment. The OPC server can then optimize its behavior. An automatic update won't be performed over the object that has this property set to false and the Refresh, Read and Write methods won't be functional.

PROMOTIC 9.0.0 SCADA system documentation - MICROSYS, spol. s r.o.

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