We are going to connect the fuel consumption meter Eurosens Delta RS, onboard display Eurosens Display RS and GPS tracker Smart 2435 (Navtelecom) using RS485 interface, MODBUS protocol.Both devices (Eurosens Display and Smart 2435) read internal MODBUS registers of the Eurosens Delta RS fuel meter.
Connect Eurosens Display RS to the Eurosens Display CAN(RS) Configurator and set the following settings:
In the Adder section of Eurosens Display configurator add new device with “Direct, Delta+” type. 
Now connect Eurosens Delta meter to the Eurosens Delta configurator and set settings mentioned below:
Open GPS tracker configurator and make the RS485/MODBUS settings 
With these settings Eurosens Display RS will show these parameters : 
GPS tracker Smart 2435 will read same parameters and send to remote server.
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