Komunikacja modbus Fatek

Pacjent: OH2.4 na Qnap

PLC: Fatek

Sposób działania https://www.openhab.org/addons/bindings/modbus/

Problemy: 
2019-07-10 05:37:35.435 [ERROR] [ing.ModbusSlaveConnectionFactoryImpl] - connect try 1/1 error: No route to host (Host unreachable). Connection TCPMasterConnection@403e01e6[socket=Socket[unconnected]]. Endpoint ModbusTCPSlaveEndpoint@7cd13551[address=xx.xx.10.50,port=502]
2019-07-10 05:37:35.436 [ERROR] [ing.ModbusSlaveConnectionFactoryImpl] - re-connect reached max tries 1, throwing last error: No route to host (Host unreachable). Connection TCPMasterConnection@403e01e6[socket=Socket[unconnected]]. Endpoint ModbusTCPSlaveEndpoint@7cd13551[address=xx.xx.10.50,port=502]
2019-07-10 05:37:35.438 [ERROR] [ing.ModbusSlaveConnectionFactoryImpl] - Error connecting connection TCPMasterConnection@403e01e6[socket=Socket[unconnected]] for endpoint ModbusTCPSlaveEndpoint@7cd13551[address=xx.xx.10.50,port=502]: No route to host (Host unreachable)
2019-07-10 05:37:35.444 [WARN ] [rt.modbus.internal.ModbusManagerImpl] - Could not connect to endpoint ModbusTCPSlaveEndpoint@7cd13551[address=xx.xx.10.50,port=502] -- aborting request ModbusPollerThingHandlerImpl.ModbusPollerReadRequest@2138e827[slaveId=1,functionCode=READ_COILS,start=4,length=2,maxTries=3] [operation ID daaaff4e-0dab-4ade-bfec-634f50a77c78]
2019-07-10 05:37:35.461 [ERROR] [ernal.handler.ModbusDataThingHandler] - Thing modbus:data:localhostTCP:coils:do4 'Modbus data' had ModbusConnectionException error on read: ModbusConnectionException(Error connecting to endpoint=ModbusTCPSlaveEndpoint@7cd13551[address=xx.xx.10.50,port=502])
2019-07-10 05:37:35.516 [ERROR] [ernal.handler.ModbusDataThingHandler] - Thing modbus:data:localhostTCP:coils:do5 'Modbus data' had ModbusConnectionException error on read: ModbusConnectionException(Error connecting to endpoint=ModbusTCPSlaveEndpoint@7cd13551[address=xx.xx.10.50,port=502])

2019-07-10 05:37:35.518 [hingStatusInfoChangedEvent] - 'modbus:data:localhostTCP:coils:do4' changed from ONLINE to OFFLINE (COMMUNICATION_ERROR)
2019-07-10 05:37:35.530 [hingStatusInfoChangedEvent] - 'modbus:data:localhostTCP:coils:do5' changed from ONLINE to OFFLINE (COMMUNICATION_ERROR)
2019-07-10 05:37:35.550 [hingStatusInfoChangedEvent] - 'modbus:poller:localhostTCP:coils' changed from ONLINE to OFFLINE (COMMUNICATION_ERROR): Error with read: org.openhab.io.transport.modbus.ModbusConnectionException: Error connecting to endpoint ModbusTCPSlaveEndpoint@7cd13551[address=xx.xx.10.50,port=502]
2019-07-10 05:37:35.554 [hingStatusInfoChangedEvent] - 'modbus:data:localhostTCP:coils:do4' changed from OFFLINE (COMMUNICATION_ERROR) to ONLINE
2019-07-10 05:37:35.564 [hingStatusInfoChangedEvent] - 'modbus:data:localhostTCP:coils:do5' changed from OFFLINE (COMMUNICATION_ERROR) to ONLINE
2019-07-10 05:37:38.491 [hingStatusInfoChangedEvent] - 'modbus:data:localhostTCP:coils:do4' changed from ONLINE to OFFLINE (COMMUNICATION_ERROR)
2019-07-10 05:37:38.497 [hingStatusInfoChangedEvent] - 'modbus:data:localhostTCP:coils:do5' changed from ONLINE to OFFLINE (COMMUNICATION_ERROR)

Proszę o pomoc ;(