Teltonika RUT956 and pH sensor set up via RS-485

Hello Teltonika support,

I would like to ask you, how can I connect, set up RUT956 to RS485 sensor via modbus RTU and send measured data to server?

RUT956 FW. version: RUT9M_R_00.07.07.1

Acc. to Teltonika wiki, I used this wiring diagram for connection sensor to gateway:

My sensor is only 2-wire network electrical connection

  1. How can I test modbus connection and read specific sensor registers?
  2. How can I handle the measured data from sensor and send them to the server?
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