Problem reconnecting after loss of communication

[MaaG-dA]

Describe the bug

In my modbus network I have 2 devices: id 11 and id12.
When for some reason a communication error occurs, the modbus server loses the query sequence - as a result - it cannot re-establish this communication. Only a restart of the adapter helps.

**Logfile 1: log of correct communication**
modbus.2
2024-11-23 20:05:38.296 debug [DevID_12/holdingRegs] Poll address 0 DONE

modbus.2
2024-11-23 20:05:38.144 debug [DevID_12/holdingRegs] Poll address 0 - 9 registers

modbus.2
2024-11-23 20:05:38.143 debug [DevID_12] Poll start ---------------------

modbus.2
2024-11-23 20:05:37.930 debug [DevID_11/holdingRegs] Poll address 15 DONE

modbus.2
2024-11-23 20:05:37.829 debug [DevID_11/holdingRegs] Poll address 15 - 14 registers

modbus.2
2024-11-23 20:05:37.822 debug [DevID_11/holdingRegs] Poll address 0 DONE

modbus.2
2024-11-23 20:05:37.719 debug [DevID_11/holdingRegs] Poll address 0 - 15 registers

modbus.2
2024-11-23 20:05:37.718 debug [DevID_11] Poll start ---------------------

modbus.2
2024-11-23 20:05:35.722 info Connected to slave 192.168.10.30`

**Logfile 2: log after error occurs**
modbus.2
2024-11-23 20:03:04.726 info Disconnected from slave 192.168.10.30

modbus.2
2024-11-23 20:03:04.725 debug Closing client on purpose.

modbus.2
2024-11-23 20:03:03.925 debug [DevID_12/holdingRegs] Poll address 0 - 9 registers

modbus.2
2024-11-23 20:03:03.925 debug [DevID_12] Poll start ---------------------

modbus.2
2024-11-23 20:03:03.726 debug Cleaning up request fifo.

modbus.2
2024-11-23 20:03:03.726 debug Clearing timeout of the current request.

modbus.2
2024-11-23 20:03:03.726 debug Socket closed with error

modbus.2
2024-11-23 20:03:03.725 warn [DevID_11] Poll error count: 1 code: {"err":"timeout","timeout":4000}

modbus.2
2024-11-23 20:03:03.724 error Client in error state.

modbus.2
2024-11-23 20:03:03.724 error Request timed out.

modbus.2
2024-11-23 20:03:03.723 warn Error: undefined

modbus.2
2024-11-23 20:03:01.139 debug [DevID_11/holdingRegs] Poll address 0 - 15 registers

modbus.2
2024-11-23 20:03:01.138 debug [DevID_11] Poll start ---------------------

modbus.2
2024-11-23 20:02:59.723 debug [DevID_12/holdingRegs] Poll address 0 DONE

modbus.2
2024-11-23 20:02:59.567 debug [DevID_11/holdingRegs] Poll address 0 - 15 registers

modbus.2
2024-11-23 20:02:59.566 debug [DevID_11] Poll start ---------------------

modbus.2
2024-11-23 20:02:59.565 info Connected to slave 192.168.10.30

Versions:

• Adapter version: modbus v6.3.2
• JS-Controller version: 6.0.11
• Node version: 20.18.0
• Operating system: Armbian v24.8.4

[GermanBluefox]

Fixed in 7.5.1