Using Eurosens Display and several fuel level sensors to show total fuel volume in the tanks.

We recommend to use the latest configuration software and update firmware to an actual version for all devices. 

Example 1. Two fuel level sensors installed in 2 tanks. They are connected to Eurosens Display RS by RS485 bus using MODBUS protocol. Display will sum up fuel volume in both tanks and show total.

Connection diagram.

Setting up fuel level sensors. Choose type of interface – RS485 and protocol – MODBUS. Both sensors must have different address in RS485 network, so we incheck “Ignore” option in fuel level sensor address menu. 

Tank calibration table is stored in the sensor memory. Sensor  №1.

Tank calibration table for tank №2

Setting up the Display: It works in adder mode by RS485 interface. Since we don’t have to send data to external system – choose K-line output interface , to not interfere with RS485 internal communication.

Open the Adder section of Eurosens Display configurator. Set Ignore option to Adder address (since we have only 1 adder in RS485 bus). Choose Adder mode : MODBUS . Then enter all sensors to be added in the Adder list. To add sensor we must enter its address in RS485 network. Zero address means sensor is not used. Also we have to set fuel tank volume, minimum and maximum value from sensor (for empty and full tank). These data must be same with sensor settings.

For sensor №2:

As a result, we can see now fuel volume in each tank and total volume on the Eurosens Display screen.

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