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Connecting a Teltonika Tracker to a Tachograph

From Teltonika Telematics Wiki
Main Page > Software & Applications > TachoSync > Connecting a Teltonika Tracker to a Tachograph

This page explains how to:

  1. Connect a Teltonika tracker to a tachograph.
  2. Configure the tracker settings for DDD file download.
  3. Check that the connection works properly.

Connect the Tracker to Tachograph

There are several methods to physically connect your Teltonika device to a tachograph. The method depends on your tachograph model, see Supported Tachographs.

FMS

If the FMS interface on your tachograph has the RDD (Remote Data Download) signal, you can use the FMS interface to download DDD files:

  • Connect the CANx LOW and CANx HIGH wires from the tracker to PIN 6 and PIN 9 on the FMS connector of the tachograph.
  • Additionally, PIN 10 can be used for ignition detection using DIN1 wire.

More information about the Teltonika FMS CABLE can be found here.
If the RDD signal is not available on the FMS interface, look into other connection methods.

Rear Panel Tachograph Connection (Tacho C Socket)

Before using this method, you must measure the tachograph CAN line resistance while the tachograph is switched off:

  1. Turn off the vehicle ignition.
  2. Measure resistance between the C5 (CAN2 H) and C7 (CAN2 L) contacts.
  3. If the multimeter shows ~120 Ω, skip the next step.
  4. If the multimeter shows resistance in the kiloohm range, use a wire to interconnect tachograph C8 (CAN-RES) and C7 (CAN2 L) contacts.
  5. Re-measure the resistance of the line – it has to be ~120 Ω.

Only after succesfully ensuring that the resistance of the line is ~120 Ω, connect CAN2 L and CAN2 H wires to tachograph C socket pins C5 (CAN2 H) and C7 (CAN2 L).

Notes:

  • All of the same level CAN-L and CAN-H wires must be interlaced with each other.
  • CAN wire needs to be installed as far as possible from the GSM antenna.


Below is an example of a wiring diagram for a tachograph and Teltonika tracker:

Front Panel K-Line

Use the front panel K-Line connector to download DDD files and read live data from tachograph. The cable is designed for easy installation and does not cover the buttons or the screen of the tachograph.

The tachograph must be activated to get data from the front interface. By default, remote DDD files from Front Interface is disabled from the factory. To check if your tachograph is already enabled, contact your VDO service or use "tachocheck" SMS command.

Continental VDO Tachograph Activation

All supported Continental VDO Digital Tachographs can be activated, but the activation process is different for version ranges 1.3a-2.2 and 3.0-4.0.

To activate the tachograph front interface for versions 1.3a-2.2:

  1. Acquire a DTCO® Update card:
    - Card version A2C59512046 - one activation;
    - Card version A2C59512047 - five activations (count the number of activations you perform manually!).
  2. Insert DTCO® Update card into any card slot of the tachograph - the tachograph will update automatically.

Image: 400 pixels

To activate the tachograph front interface for versions 3.0-4.0, use one of these methods:

  1. Get a license key and enter it into the tachograph
    1. Contact VDO service to provide you with a License Key for the tachograph Front Panel activation.
    2. After receiving a letter with license key, enter it manually in the tachograph menu:
      - entry
      - vehicle
      - $ licence code
  2. Get a license key and enter it into a VDO mobile app
    1. Download DTCO Configuration APP on your smartphone
    2. Link up with DTCO SmartLink
    3. Enter the license key, that you can purchase in VDO online shop.

Installation process

Image: 1000 pixels
The cable connects to the Front Interface Connector that is used for manual DDD files download. To connect:

  1. Uncover the interface.
  2. Connect Front Panel Cable to the tachograph.
  3. Connect FMC640 K-line with Front Panel Cable.

Configure Tracker Settings

For the tracker to download files from the tachograph, certain settings need to be configured in the Configurator.
Main configuration is done in the „CAN / Tachograph“ menu.


Tachograph settings:

  • DDD download source – to which CAN line tachograph is connected.
  • Tachograph ignition source – which DIN is connected to vehicle ignition ("Ignition" parameter - tachograph ignition source will be the same as configured in "System" -> "Ignition Source").


WEB Tacho / TachoSync Settings:

  • Status - functionality enabling;
  • Domain – server domain where files will be send;
  • Port – server port where files will be send;
  • Start delay – delay after turning on ignition to start procedure of file sending.

To read live data with the K-Line front panel connector, in Configurator „Tachograph Data“ menu, in Vehicle Data Priority Settings, change "K Line Priority" to "Priority 1".

Check the Connection

After connecting and configuring the tachograph, check if your setup works properly. Send the tachocheck SMS message to the device – it is used to get tachograph status.

SMS Response Example and Structure

Response example

CAN_2:111,FBCF, K-Line:1, Addr:251, Baud:250, Ign:1

SMS response structure
DDD download source Tachograph responses (TRC) FMS data presence K-Line data presence Tachograph address Baudrate Ignition status
CAN_2 111 FBCF K-Line:1 Addr:251 Baud:250 Ign:1

The answer to tachocheck SMS message should always have “111” in the tachograph TRC responses:
CAN_2:111,FBCF, K-Line:1, Addr:251, Baud:250, Ign:1
This indicates that DDD files can be downloaded from the tachograph. If you see any other TRC responses, e.g. 100, 110, 101 – perform Basic connection troubleshooting (see below).

Response structure explanation

  • DDD download source – the source for DDD file downloads set in the Configurator (e.g. CAN_2, KLN, etc.).
  • Tachograph responses (TRC):
    • T – Tachograph presence on CAN bus (ability to respond to requests on CAN lines):
      • 0 = tachograph does not respond on the CAN bus;
      • 1 = tachograph responds on the CAN bus.
    • R – Tachograph response to “Open Remote Session” validity check (ability to open a remote session):
      • 0 = failed to open remote session (wrong or unknown response);
      • 1 = tachograph responds (remote session opened successfully).
    • C – Tachograph response to “Close Last Authentication Session” validity check (last remote session closed successfully):
      • 0 = failed to close last authentication session (wrong or unknown response);
      • 1 = last authentication session closed successfully - the device is ready to open a new authentication session.
  • FMS data presence on CAN bus:
    • four zeros in response (0000) = no FMS data;
    • non-zero response = FMS data detected.
  • K-line data presence on CAN bus:
    • 0 = K-Line data is present on the CAN bus;
    • 1 = K-Line data is not present on the CAN bus.
  • Tachograph address – address used for remote DDD data reading.
  • Baudrate – CAN bus baudrate in kbps.
  • Ignition status – status of ignition source selected in Configurator.

Basic Connection Troubleshooting

If the TRC data in tachocheck SMS response is not “111”, do the following basic troubleshooting steps:

  1. Ignition of your vehicle was OFF during testing – try again with ignition ON.
  2. Check basic cable connections : loose or broken pins and connectors, corrosion, CAN wires not interlaced.
  3. Configurator settings are incorrect:
    1. Check “DDD download source”;
    2. Check “CAN bus speed” (baudrate);
    3. Check tachograph address.
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