Reading raw data longer than 16 Bytes

[FKuypers]

I am using the Modbus adapter to read my solar inverter (Sofar/ZCS Azzurro) through TCP/IP. To be able to change/write the battery parameters, one needs to write the complete set of 14 16 Bit values.

I upgraded to 6.2.3 to be able to read Holding Registers with raw values.

If I extend the length of this Holding Register beyond 8, I get the following error:

[1] Poll error count: 1 code: {"errorCode":131,"exceptionCode":2,"message":"ILLEGAL DATA ADDRESS"}

Is this error produced by my inverter? If I use a Modbus client on my phone, I can read 28 Bytes easily.

Is this a limitation by the modbus client we could fix some next version?

Thanks,
Frank