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direct J1708/J1939 connection

Teltonika FMB640 offers the following options for direct J1708/J1939 connection:

  1. through the 2x10 socket (front side)
    1. SAE J1939, CAN 1, FMS
    2. SAE J1939, CAN 1, raw/manual (i.e. without FMS)
      You get raw CAN data from vehicle CAN lines. Please
      • configure required data filters on FMB640 and
      • setup your server to correctly interpret the raw data received from FMB640.
    3. SAE J1939, CAN 2, FMS
    4. SAE J1939, CAN 2, raw/manual (i.e. without FMS)
      You get raw CAN data from vehicle CAN lines. Please
      • configure required data filters on FMB640 and
      • setup your server to correctly interpret the raw data received from FMB640.
  2. through the J1708 socket (back side, RJ11 port)
    • SAE J1708 (actually RS-485 at physical layer)

references

FAQ

Q: Are SAE J1939 ports read only?

A: Yes, they are.


Q: Where do I get the SAE J1939 wiring diagram for a vehicle?

A: Please contact
  support@mirifica EU ,
maybe we have the right SAE J1939 wiring diagram for the vehicle.
If not, you shall contact the vehicle manufacturer or one of its authorized service centers.


Q: What is the difference between CAN1 and CAN2?

A: It depends on specific vehicle manufacturer and model. Sometimes data are transmitted on CAN1, sometimes on CAN2. The best practice to find the correct CAN line is by trial: connect and check on PC if data is coming.

Q: Where I can find the SAE J1708 connector on a vehicle?

A: It is the vehicle's diagnostic port. The exact location:

  • should be provided by vehicle manufacturer or
  • could be found in vehicle documentation.


Q: Where can I find the SAE J1708 wiring diagram for a vehicle?

A: SAE J1708 connection (pin-out) diagram can be found in FMB640 documentation, in "J1708 Connection" section.


Q: Is SAE J1708 port read only?

A: Yes, it is.


Q: What SAE J1708 data can I read from a vehicle?

Typically, the following SAE J1708 data can be read from a vehicle:

  • Fuel Level
  • Engine Total Fuel Used

Q: What FMS data can read out of my vehicle?

A: Please contact the manufacturer of your vehicle or an authorized service center.
What FMS parameters are issued depends on vehicle manufacturer, model and year of production. The vehicle manufacturer decides what FMS data are issued by and FMS gateway.


Q: What FMS data can FMB640 read out?

A: FMB640 can read out the following FMS data:

  • Accelerator pedal position (0–100%)
  • Brake switch (on/off)
  • Clutch switch (on/off)

  • Cruise control (on/off)

  • Distance

    • High-resolution vehicle distance
    • Service distance
  • Fuel
    • Fuel level (0–100%)

    • Total fuel used (litres since lifetime)

  • Gross axle weight rating (kg)
  • Engine:

    • Engine coolant temperature

    • Engine speed

    • Total engine hours (h)

  • FMS-Standard software version (supported modes)

  • PTO (Status/Mode)

  • Tachograph information

  • Vehicle


Q: What FMS data can FMB640 read out of my vehicle?

A:
A.1: connect FMB640 to FMS interface (vehicle CAN lines without any adapter or converter) [image];
A.2: turn vehicle ignition on;
A.3: send SMS command " scanfms" or "[user] [pass] scanfms";
A.4: you will receive an SMS reply with the list of parameters that are read out by FMB640 through FMS.


Q: Can FMB640 read FMS Fault Codes?

A: As of 2019-03, FMB640 cannot read FMS Fault Codes, but its implementation is under development.


Q: Where do I get the FMS connection in my vehicle?

A: Please contact the manufacturer of your vehicle or an authorized service center.
The FMS connector has not been standardized. It is typically a green rectangular receptacle connector.


Q: Where do I find the FMS wiring diagram for my vehicle?

A: Please contact the manufacturer of your vehicle or an authorized service center.

Q: Which protocols are supported by my vehicle?

A: Please contact the manufacturer of your vehicle or an authorized service center.

Q: What I/O elements can FMB640 directly read?

A: FMB640 can read those I/O elements through a direct wired connection listed in Teltonika Configurator, under FMS I/O settings

  • FMB640 I/O settings > LVCAN I/O,FMS IO and Tachograph data elements
    • "FMS IO ... section shows I/O elements that can be obtained accordingly from external devices connected to FMB640 device. All I/O configuration is as described I/O elements
    • "FMS IO: FMS, or Fleet Management Systems Interface, is a sector to configure and manage events based on vehicle data of commercial vehicles. Vehicle data comes through CAN lines. Event configuring isn’t different from those in LVCAN and I/O sectors. The only difference is IDs"

or in FMB640 wiki > protocol table > FMS elements

Please note that your vehicle may not support all parameters.

Q: Can FMB640 read OBD-II data through a direct wired connection?

A: No, FMB640 cannot read OBD-II through a direct wired connection.
You may use a third-party ODB-II/serial adapter cable and

  • connect it to the COM1 port;

  • receive OBD-II data;

  • send OBD-II data to the server using TCP Binary Mode (Codec12) protocol.


Q: Can FMB640 read OBD-II data through a direct wireless connection?

A: No, as of 2019-04, FMB640 cannot read OBD-II data through a direct wireless connection (e.g. ODB-II/Bluetooth adapter).

Q: Can FMB640 read serial data remotely?

A: Yes [link]:
A.1: read raw data from serial port;
A.2: send raw data to server through TCP Binary/ASCII mode;
A.3: read raw data from server;
A.4: parse raw data.

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