Modbus switch regulary unavailable

Configuration
1

Have an issue with OWEN Plc - the switch is often unavailable for a short period of time.

Log of changing state:
22:09:06 Turned on
22:08:33 Changed to unavailable
22:08:06 Turned on
22:07:33 Changed to unavailable
22:07:06 Turned on
22:06:33 Changed to unavailable
22:06:06 Turned on
22:05:33 Changed to unavailable
22:05:06 Turned on
22:04:33 Changed to unavailable
22:04:06 Turned on
22:03:33 Changed to unavailable

There was a one release of HA with no issue but I didnt remember when it was (may be more that half an year).

My test config is:
modbus:

  • type: tcp
    host: 192.168.88.9
    port: 502
    name: OWEN
    timeout: 3
    delay: 1

switch:
platform: modbus
coils:
- name: OWEN_Switch1
hub: OWEN
slave: 1
coil: 5

Try different values for delay and timeout (from 0.01 to 3)

My be my config is wrong?

2

Record pls the error log
Insert into configuration. yaml

logger:
logs:
homeassistant.components.modbus: debug
pymodbus.client: debug

Bye
Paolo

4

@ploto22 While I see in GUI record: 21:13:44 Changed to unavailable

The log records are:
2020-10-06 21:13:44 DEBUG (SyncWorker_7) [pymodbus.transaction] Current transaction state - TRANSACTION_COMPLETE
2020-10-06 21:13:44 DEBUG (SyncWorker_7) [pymodbus.transaction] Running transaction 27
2020-10-06 21:13:44 DEBUG (SyncWorker_7) [pymodbus.transaction] SEND: 0x0 0x1b 0x0 0x0 0x0 0x6 0x1 0x1 0x0 0x5 0x0 0x1
2020-10-06 21:13:44 DEBUG (SyncWorker_7) [pymodbus.client.sync] New Transaction state ‘SENDING’
2020-10-06 21:13:44 DEBUG (SyncWorker_7) [pymodbus.transaction] Transaction failed. ([Errno 32] Broken pipe)
2020-10-06 21:13:44 DEBUG (SyncWorker_7) [pymodbus.framer.socket_framer] Processing:
2020-10-06 21:13:44 DEBUG (SyncWorker_7) [pymodbus.transaction] Getting transaction 27
2020-10-06 21:13:44 DEBUG (SyncWorker_7) [pymodbus.transaction] Changing transaction state from ‘PROCESSING REPLY’ to ‘TRANSACTION_COMPLETE’
2020-10-06 21:13:44 DEBUG (MainThread) [homeassistant.core] Bus:Handling <Event state_changed[L]: entity_id=switch.owen_switch1, old_state=<state switch.owen_switch1=off; friendly_name=OWEN_Switch1 @ 2020-10-06T21:13:15.140283+03:00>, new_state=<state switch.owen_switch1=unavailable; friendly_name=OWEN_Switch1 @ 2020-10-06T21:13:44.140879+03:00>>
2020-10-06 21:13:44 DEBUG (MainThread) [homeassistant.components.homekit.accessories] New_state: <state switch.owen_switch1=unavailable; friendly_name=OWEN_Switch1 @ 2020-10-06T21:13:44.140879+03:00>
2020-10-06 21:13:44 DEBUG (MainThread) [homeassistant.components.websocket_api.http.connection.140282863914288] Sending {‘id’: 2, ‘type’: ‘event’, ‘event’: <Event state_changed[L]: entity_id=switch.owen_switch1, old_state=<state switch.owen_switch1=off; friendly_name=OWEN_Switch1 @ 2020-10-06T21:13:15.140283+03:00>, new_state=<state switch.owen_switch1=unavailable; friendly_name=OWEN_Switch1 @ 2020-10-06T21:13:44.140879+03:00>>}

and while 21:14:15 Turned off:
2020-10-06 21:14:15 DEBUG (SyncWorker_14) [pymodbus.transaction] Changing transaction state from ‘WAITING FOR REPLY’ to ‘PROCESSING REPLY’
2020-10-06 21:14:15 DEBUG (SyncWorker_14) [pymodbus.transaction] RECV: 0x0 0x1c 0x0 0x0 0x0 0x4 0x1 0x1 0x1 0x0
2020-10-06 21:14:15 DEBUG (SyncWorker_14) [pymodbus.framer.socket_framer] Processing: 0x0 0x1c 0x0 0x0 0x0 0x4 0x1 0x1 0x1 0x0
2020-10-06 21:14:15 DEBUG (SyncWorker_14) [pymodbus.factory] Factory Response[ReadCoilsResponse: 1]
2020-10-06 21:14:15 DEBUG (SyncWorker_14) [pymodbus.transaction] Adding transaction 28
2020-10-06 21:14:15 DEBUG (SyncWorker_14) [pymodbus.transaction] Getting transaction 28
2020-10-06 21:14:15 DEBUG (SyncWorker_14) [pymodbus.transaction] Changing transaction state from ‘PROCESSING REPLY’ to ‘TRANSACTION_COMPLETE’
2020-10-06 21:14:15 DEBUG (MainThread) [homeassistant.core] Bus:Handling <Event state_changed[L]: entity_id=switch.owen_switch1, old_state=<state switch.owen_switch1=unavailable; friendly_name=OWEN_Switch1 @ 2020-10-06T21:13:44.140879+03:00>, new_state=<state switch.owen_switch1=off; friendly_name=OWEN_Switch1 @ 2020-10-06T21:14:15.140325+03:00>>
2020-10-06 21:14:15 DEBUG (MainThread) [homeassistant.components.homekit.accessories] New_state: <state switch.owen_switch1=off; friendly_name=OWEN_Switch1 @ 2020-10-06T21:14:15.140325+03:00>
2020-10-06 21:14:15 DEBUG (MainThread) [homeassistant.components.websocket_api.http.connection.140282863914288] Sending {‘id’: 2, ‘type’: ‘event’, ‘event’: <Event state_changed[L]: entity_id=switch.owen_switch1, old_state=<state switch.owen_switch1=unavailable; friendly_name=OWEN_Switch1 @ 2020-10-06T21:13:44.140879+03:00>, new_state=<state switch.owen_switch1=off; friendly_name=OWEN_Switch1 @ 2020-10-06T21:14:15.140325+03:00>>}

5

The problem is still actual, can you help with it?

6

Sorry but it is no clear the fault . . .
Have you some error / warning in the HA log ?
Can you have test the data with Modbus tester ?
Bye
Paolo

8

I have the same issue，and the switch state chages to truned off automatically ater a while

9

Hi
I have the same problem. Did you found a solution?

Thanks