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 default 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 on writing into 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
Dim oOpcGroup
Set oOpcGroup = pMe.Pm("/OpcClient/Group1")
Dim bActive
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 on writing into the variable.