Modbus TCP over serial configuration: answers > 52 registers are truncated

Model: RUT956

Firmware: RUT9M_R_00.07.24

I use qModMaster to read registers from PLC using the serial port of the router, this has worked since several years ago.

The router answers Ok with the firmware version RUT9M_R_00.07.06 but with the firmware version RUT9M_R_00.07.24, it truncates the answers if the number of registers is > 52.

I suspect this problem has appeared on the last version due to the fix “Modbus TCP over Serial Gateway: fixed single ID option not working”.