Description:
Enable/disable the automatic data update.
Note:
Property access
for read and write.
The default value of this property is defined in the "
Refresh from server at server change" configurator of this object.
Tha data group of the
OPC client (the
PmaOpcDaClientGroup object) that has this property set to
true, requires the ongoing update of all its data from the
OPC server. The server sends the value to such client automatically at a change of the value on the server.
Because the update of the requested data could pass uncertainly very fast, the parameters for the update can be specified - see
UpdateRate property and
Deadband property.
Example:
JavaScriptVBScriptSelect and copy to clipboard
var oOpcGroup = pMe.Pm("/OpcClient/Group1");
var bUpdate = oOpcGroup.Update;
// Reading from the property
oOpcGroup.Update = true;
// Writing into the property
Dim oOpcGroup
Set oOpcGroup = pMe.Pm("/OpcClient/Group1")
Dim bUpdate
bUpdate = oOpcGroup.Update
' Reading from the property
oOpcGroup.Update = true
' Writing into the property