Promotic

ActiveGroup - property of the PmaOpcDaClientGroup object

Description:
It allows to inform the OPC server about using the data group by the OPC client
Syntax:
Boolean ActiveGroup
Note:
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 (PmaOpcDaClientGroup 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.
Automatic update will not be performed over an object that has this property set to false, the Refresh, Read and Write methods will not work and when writing to the variable, the value will not be transferred to the OPC server.
Example:
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var oOpcGroup = pMe.Pm("/OpcClient/Group1");
var bActive = oOpcGroup.ActiveGroup;   // Reading from the property
oOpcGroup.ActiveGroup = true;   // Writing into the property

History:
Pm9.00.17: If this property is set to false, then the value is not passed to to the OPC server when writing to the variable.
PROMOTIC 9.0.17 SCADA system documentation - MICROSYS, spol. s r.o.

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