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==Introduction==
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{{Template:FMx6 and Tachograph Solution|model=FMB640}}
Teltonika [https://ddd.teltonika.lt WEB Tacho] is an online service that allows to remotely downloading Tachograph files from supported tachographs.
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The solution is a big forward leap in remote tachograph data files download, manageable and does not require any complex software* installation.
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Everything is accessible via the web page. Now you can download tachograph files from any place and from any PC via internet access. FMB640 device has a possibility to connect to Web Tacho IP every 1 hour and check if there are any schedules for downloading DDD files.  If FMB640 connects to the Web tacho server, and there is a planned schedule but another device is already downloading and the company card is in use, the device
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keeps a link with the Web Tacho server but still sends data to the main server with AVL data. After
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successful download, the device closes link with Web Tacho and reconnects after 1 hour. Data is
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stored on a secure server and can be accessed only by your authorized users. You don't need to
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worry that any file is lost and you have to download is from tachograph once again.
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''*- requires company card reader software installation on a single company PC''
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==Supported tachographs and formats==
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Solution supports not only the standard DDD file extension, but also Spanish TGD and French V1B, C1B file formats. You simply set required one in Web Tacho user settings.<br />
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'''NOTE:''' To chech whether VDO tachograph is supported or not, Teltonika [https://tacholookup.teltonika.lt/ Tachograph Lookup] can be used.
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Supported devices are: Siemens VDO Digital Tachograph – DTCO 1381 (release 1.3a, 1.4
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or later) and Stoneridge Tachograph – SE5000 (release 7.1 or later). Version can be checked on
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tachograph or in cheque as shown in pictures below:
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[[Image:Tacho_version.PNG|800px|center]]
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[[Image:Tacho_version_1.PNG|800px|center]]
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==Connecting to tachograph==
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[[Image:Tacho_connection.PNG|800px|center]]
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<br />
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Before connecting tachograph wires, it is required to measure CAN line resistance
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while tachograph is switched off:<br />
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# Turn off the vehicle ignition;<br />
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# Measure resistance between the C5 (CAN2 H) and C7 (CAN2 L) contacts;<br />
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# If the multimeter shows ~120 Ohms, skip the next step;<br />
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# If the multimeter shows kilo Ohms resistance then it is needed to connect tachograph C8 (CAN-RES) and C7 (CAN2 L) contacts with wire and then perform further actions;<br />
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# Re-measure the resistance of the line – it has to be ~120 Ohms.<br />
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# Connect CAN2 L and CAN2 H wires to tachograph (C5 (CAN2 H) and C7 (CAN2 L))<br />
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* All of the same level CAN-L and CAN-H wires must be interlaced with each other.<br />
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[[Image:Wires.PNG|800px|center]]
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* CAN wires need to be installed as far as possible from GSM antenna.<br />
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Below is wiring diagram of Tachograph and FM6400/FMB640 device:<br />
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[[Image:Wiring_diagram.PNG|800px|center]]
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==Checking connection (Tachocheck SMS)==
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After successful connection tachocheck SMS message can be sent to device for checking if
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data presented on connected lines, by another words if connections were done correctly. It is
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used for getting status information. SMS response is of such structure:
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CAN_2:[TRC],[ABCD], K-Line:[K]<br />
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[T] – Tachograph presence on bus:<br />
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* 0 – Tachograph doesn’t respond on bus;<br />
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* 1 – Tachograph responds on bus.
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[R] – Response to Open Remote Session validity check:<br />
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* 0 – Wrong or unknown response (failed to open Remote Session);<br />
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* 1 – Tachograph responds positively (Remote Session opened successfully).
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[C] – Response to Close Last Authentication Session validity check:<br />
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* 0 – Wrong or unknown response (failed to close last authentication session);<br />
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* 1 – Last authentication session closed successfully, device is ready to open new authentication session.
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[K] – K-Line data presence on bus:<br />
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* 0 – K-Line data not present on bus;<br />
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* 1 – K-Line data present on bus.
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[ABCD] – FMS data presence on bus:<br />
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* 0000 – FMS data not present on bus;<br />
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* Non-zero – FMS data detected on bus.
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'''SMS answer which shows correct line connections looks like “CAN_2:[111],[ABCD], K-Line:[K]”.'''
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'''Such SMS answer means DDD files can be downloaded from tachograph.'''
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==Configuring device==
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'''In FMB640 configurator “CAN/Tachograph” section tachograph settings should be set in order to download files.<br />'''
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<br />
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'''Tachograph settings:''' <br />
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'''DDD download source''' – to which CAN line tachograph is connected;<br />
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'''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");<br />
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'''WEB Tacho Settings:'''<br />
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'''Status''' - functionality enabling;<br />
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'''Domain''' – server domain where files will be send;<br />
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'''Port''' – server port where files will be send;<br />
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'''Start delay''' – delay after turning on ignition to start procedure of file sending.<br />
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[[Image:Configuration_tacho1111.PNG|800px|center]]
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==External links==
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https://teltonika-gps.com/product/tachograph-web/ <br />
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https://teltonika-gps.com/product/FMB640/ <br />
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https://wiki.teltonika-gps.com/view/FMB640
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[[Category:WEB Tacho]]