Modbus read value problem

Dear

I am working on an energy measurement project for a customer, in which I intend to implement Comfortclick/bOS as the management system.

I have established a modbus connection between an energy measurement device from Finder and the bOS. I simultaneously noticed that the measurement (voltage, current and power) shown on the Finder display differs from the reading obtained by the bOS which is slightly higher.

Settings:

Connection Type: Serial

Serial Transmission Mode: RTU

Low Word First: False

Low Byte First: False

Data Format: LittleEndian

Write Function Type: WriteSingle

Read Function Type: ReadSingle

Modbus Table: InputRegisters

Data Format: Signed32Bit (to power) and Unsigned32Bit (to voltage and current)

Scale Factor: 1

Use Status Address: False

Readcyclically: True

Please, could you help me with the configuration in order to get the correct reading?

Thanks,

Eduardo