The EnableDeadBand enables or disables the PercentDeadBand property. If this property is set to True, Tag's value is only updated when it changes, and its new value exceeds the limit defined by the PercentDeadBand property. Otherwise, the Tag is always updated, and the dead band limit is not checked. Always keep dead band enabled, because it improves data acquisition and processing performance. Users must disable dead band only for Tags that return values representing digital or analogical events, and it is necessary to process these events via script on Tag's OnRead event. Default value of this property is True.