hello massimo,
i deinstalled the testing/beta binding an now i run the official openwebnet binding 2.5.11.
i see the same warnings ##BUS-conn## Exception: Received null frame ...
in my log.
i set to DEBUG and have two parts of log that i can show you (no idea how i can reproduce this message):
2021-01-19 19:50:03.944 [DEBUG] [e.automation.internal.RuleEngineImpl] - The rule '4eb83149-fb05-434a-909a-a424b0e89a0d' is executed.
2021-01-19 19:50:03.948 [DEBUG] [e.automation.internal.RuleEngineImpl] - The trigger 'Item-iHof_Li-received-command_d82da430598e11ebabe3dca632124bd5_d82df24f598e11ebbcf8dca632124bd5' of rule '190ff74c-8160-460c-bf70-55be7a2d32c3' is triggered.
2021-01-19 19:50:03.974 [DEBUG] [ebnet.handler.OpenWebNetThingHandler] - handleCommand() (command=ON - channel=openwebnet:bus_on_off_switch:bticino:Hof_Li:switch)
2021-01-19 19:50:03.977 [DEBUG] [et.handler.OpenWebNetLightingHandler] - handleSwitchCommand() (command=ON - channel=openwebnet:bus_on_off_switch:bticino:Hof_Li:switch)
2021-01-19 19:50:03.992 [WARN ] [nwebnet4j.communication.BUSConnector] - ##BUS-conn## Exception: Received null frame while reading responses to command
2021-01-19 19:50:03.998 [WARN ] [nwebnet4j.communication.BUSConnector] - ##BUS-conn## trying NEW CMD connection...
2021-01-19 19:50:04.090 [INFO ] [jsr223.jython.bt_manager.py ] - bt_manager data: *1*1000#1*54#4#01##
2021-01-19 19:50:04.134 [INFO ] [jsr223.jython.bt_manager.py ] - bt_manager data: *1*1*54#4#01##
2021-01-19 19:50:04.137 [DEBUG] [bnet.handler.OpenWebNetBridgeHandler] - ownIdFromMessage(<*1*1*54#4#01##>) --> 1.54h4h01
2021-01-19 19:50:04.139 [DEBUG] [et.handler.OpenWebNetLightingHandler] - handleMessage() for thing: openwebnet:bus_on_off_switch:bticino:Hof_Li
2021-01-19 19:50:04.141 [DEBUG] [et.handler.OpenWebNetLightingHandler] - 1.54h4h01 ONOFF CHANGED to 1
and
2021-01-19 19:53:38.544 [DEBUG] [jsr223.jython.core.utils ] - New sendCommand value for 'iEGFlur_TreppeLED_Li' is 'OFF'
2021-01-19 19:53:38.586 [DEBUG] [ebnet.handler.OpenWebNetThingHandler] - handleCommand() (command=OFF - channel=openwebnet:bus_on_off_switch:bticino:EGFlur_TreppeLED_Li:switch)
2021-01-19 19:53:38.588 [DEBUG] [et.handler.OpenWebNetLightingHandler] - handleSwitchCommand() (command=OFF - channel=openwebnet:bus_on_off_switch:bticino:EGFlur_TreppeLED_Li:switch)
2021-01-19 19:53:38.598 [WARN ] [nwebnet4j.communication.BUSConnector] - ##BUS-conn## Exception: Received null frame while reading responses to command
2021-01-19 19:53:38.602 [WARN ] [nwebnet4j.communication.BUSConnector] - ##BUS-conn## trying NEW CMD connection...
2021-01-19 19:53:38.696 [INFO ] [jsr223.jython.bt_manager.py ] - bt_manager data: *1*1000#0*41#4#01##
2021-01-19 19:53:38.739 [INFO ] [jsr223.jython.bt_manager.py ] - bt_manager data: *1*0*41#4#01##
2021-01-19 19:53:38.760 [DEBUG] [bnet.handler.OpenWebNetBridgeHandler] - ownIdFromMessage(<*1*0*41#4#01##>) --> 1.41h4h01
2021-01-19 19:53:38.762 [DEBUG] [et.handler.OpenWebNetLightingHandler] - handleMessage() for thing: openwebnet:bus_on_off_switch:bticino:EGFlur_TreppeLED_Li
2021-01-19 19:53:38.764 [DEBUG] [et.handler.OpenWebNetLightingHandler] - 1.41h4h01 ONOFF CHANGED to 0