Technoton MasterCAN DAC15, Operation Manual, Page: 38 / 63

Analog signal converter of the Vehicle standard fuel level sensor
MasterCAN DAC J1939 i/o modules. Operation manual. Version 2.0
© Technoton, 2018 38
4 Analog signal converter of the Vehicle standard
fuel level sensor
In some modern Vehicles equipped with CAN bus standard fuel level sensors with analog or
frequency output signals are used. These signals are sent to the fuel level indicator.
CAN-buses of such vehicles do not contain data on the fuel level in the tank which to a great
extent limits the
Telematics system potential for monitoring fuel consumption accrording to
SAE J1939 protocol.
MasterCAN DAC15 Converter may be used as an intellectual tool to convert the
analog/frequency output signal of a standard fuel level sensor into digital data ( SPN ) of
CAN-bus and transmit it to CAN j1939/S6 Telematics interface .
MasterCAN DAC15 in combination with FMSCrocodile contactless reader-converter is a
convenient solution enabling to monitor the maximum possible volume of useful data on the
Vehicle performance using the only CAN input of the terminal without using expensive
additional equipment (e.g. fuel level sensors and fuel flow meters) (see figure 21).
Figure 21 — Using MasterCAN DAC15 for conversion of an analog signal from the Vehicle
standard fuel level sensor into CAN j1939/S6 Telematics interface