Fuel Level Sensor configuration
FMS500 Light device supports impulse, frequency and analog Fuel Level Sensors. FMS500 Light+ additionally supports digital FLS using RS232 or RS485 interfaces.
I. Analog Fuel level sensors.
Analog fuel level sensors are working based on voltage and should be connected to ADC inputs of device.
To measure and send value to the platform, enable LVL1 or LVL2 parameters in MASK1 of Logic template:
LVL1 represents ADC3, LVL2 represents ADC4.
Note. LVL is approximated value of voltage coming to ADC input. To get raw values, you can use ADC3 and ADC4 parametrs from MASK1.
II. Frequency sensors.
Device supports frequency mode of 0-10kHz. Frequency can be counted by all 4 digital inputs (In2-In5). It is enough to connect sensors and configure C parameters from MASK1 to be sent to platform.
C1 represents IN2, C2 - In3, C3 - IN4, C4 - IN5 digital input.
III. Impulse sensors.
Impulses are counted based on signal level. If level below 5V frequency is 10kHz/sec. If more volts, frequency is lower. Impulses can be counted by all 4 digital inputs (In2-In5).
To get values to your platform, need to identify that will be used impulse mode, by selecting appropriate input in logic template function “FrequencyCounterSelect“:
Then enable counter parameters to be sent to platform:
C1 represents IN2, C2 - In3, C3 - IN4, C4 - IN5 digital input.
IV. RS232 based Fuel Level Sensors.
After physical connection and LLS configuration made, configure as follows.
Using Logic template, enable RS232 interface to read LLS protocol:
Then enable LLS parameters to be sent to monitoring platform:
MASK3: “LLS Group1” contain addreses from 1 to 2, “LLS Group2” contain addresses from 3-4.
MASK4: “LLS Group3” contains addresses from 5 to 14.
In case of connecting one sensor only, select parameter according to address set to FLS during calibration. Recommended address is “1”.
V. RS485 based Fuel Level Sensors.
After physical connection and LLS configuration made, configure as follows.
Using Logic template, enable RS485 interface to read LLS protocol:
Then enable LLS parameters to be sent to monitoring platform:
MASK3: “LLS Group1” contain addreses from 1 to 2, “LLS Group2” contain addresses from 3-4.
MASK4: “LLS Group3” contains addresses from 5 to 14.
In case of connecting one sensor only, select parameter according to address set to FLS during calibration. Recommended address is “1”.