Sir

My sensor has a modbus address like this, how do i set it in the datataker

Channel Registers Using Standard Addressing
Zero-Based One-Based +40,001 +400,001
Pressure 0 1 40001 400001
Temperature 2 3. 40003 400003
Power Supply Voltage 4 5 40005 400005

Hi Lan,

You can try to use the following:
1MODBUS(AD1,R3:1,MBF)

Assuming you have a sensor address 1 (not shown in your message).

Pressure parameters use register addresses 0 and 1 (or 40001 and 40002); we assume the 4 represents MODBUS type 4, which can be declared as R3.

Because there is a shift between the MODBUS register and the DT register, if the address starts at 0, the declaration needs to start at 1. In combination with the above R3, you get R3:1.

The MBF indicates the value is a floating point 32-bit, thus using two registers, 0 and 1.

Best regards,
dataTaker Expert