Deadband - property of the PmaOpcDaClientGroup object

The dead band in percentage.
Single Deadband
Property access for read and write. The preset value of this property is defined in the "Deadband [%]" configurator of this object.

At the automatic update the OPC server won't sent data that changed less than entered here. The Deadband property is intended only for the analog data (Single and Double data type). The analog value in the OPC server has set the minimum and maximum value.

The update from the server proceeds if:

an absolute value (last_updated_value - current_value)

is greater than

Deadband * (maximum - minimum) / 100

See also:
JavaScriptVBScriptSelect and copy to clipboard

var oOpcGroup = pMe.Pm("/OpcClient/Group1");
var nDeadband = oOpcGroup.Deadband;  //Reading the value
oOpcGroup.Deadband = 2;  //Writing the value
PROMOTIC 9.0.13 SCADA system documentation - MICROSYS, spol. s r.o.

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