}
IPLCBusController controller = PLCBusController.create(serialPortGateway);
if (newState == UnDefType.UNDEF) {
StatusResponse response = controller.requestStatusFor(config.getUnit());
State status = (response.isUnitOn()) ? OnOffType.ON : OnOffType.OFF;
this.eventPublisher.postUpdate(itemName, status);
}
}