Changes

With {{{model|FMX640}}}, J1708 functionality is used to read vehicle's Fuel Level and Fuel consumption.  

SAE J1708 is a standard used for serial communications between ECUs on heavy-duty. The hardware utilized is RS-485 transceivers wired for open collector operation through the use of a pullup and pulldown of the separate data lines.

Because J1708 is not a CAN-BUS protocol, {{{model|FMX640}}} CAN1 and CAN2 lines cannot be used to read J1708 information. {{{model|FMX640}}} has a special J1708 Port, which utilizes an RJ9 4P4C connector.  

 

Because J1708 is not a CAN-BUS protocol, [[{{{model|FMX640}}}]] CAN1 and CAN2 lines cannot be used to read J1708 information. [[{{{model|FMX640}}}]] has a special J1708 Port, which utilizes an RJ9 4P4C connector.  

[[Image:FMX640_and_J1708_illustration_v1.2.png]] <br>

[[Image:FMX640_and_J1708_illustration_v1.2.png]] <br>

==Software Configuration of {{{model|FMX640}}}with J1708==

==Software Configuration of {{{model|FMX640}}} with J1708==

{{{FMB640CFG|Firmware version: 00.00.11 or above

{{{FMB640CFG|'''Firmware version:''' 00.00.11 or above </br>

Configurator version: 0.13.35.29297 or above

'''Configurator version:''' 0.13.35.29297 or above

}}}

}}}

J1708 configuration is done in the FMS IO Tab.

J1708 configuration is done in the [[{{{model|FMX640}}}_LVCAN_I/O,FMS_IO_and_Tachograph_data_elements|FMS IO]] Tab.

[[image:J1708_config.gif]]

[[image:J1708_config.gif]]

When J1708 is enabled as Fuel Level source, Fuel related data will be taken from the J1708 line, FMS Fuel data will be ignored.  

When J1708 is enabled as a Fuel Level source, Fuel-related data will be taken from the J1708 line, FMS Fuel data will be ignored.  

==Connection with Vehicle port==

==Connection with Vehicle port==

J1708 connector is not supported by all vehicles. Only VOLVO, RENAULT, and American truck manufacturers implement the J1708 connector.  

J1708 connector is not supported by all vehicles. Only VOLVO, RENAULT, and American truck manufacturers implement the J1708 connector.

 

Trucks utilizes Deutsch 9-PIN connector, which is used to connect {{{model|FMX640}}} to J1708.  

Trucks utilize ''Deutsch 6-PIN or Deutsch 9-PIN connector'', which are used to connect {{{model|FMX640}}} to J1708.  

[[Image:FMX640 and 9PIN J1939 connection scheme v1.1.png]]

[[Image:FMX640 and 6PIN J1708 connection scheme v1.2.png|575px]] [[Image:FMX640 and 9PIN J1939 connection scheme v1.1.png|575px]]

{|

{|

| [[File:Alert.png|left|link=|50px]] || <b>NOTE: Most of the Volvo trucks need an J1708 connection to be able to receive fuel level data</b>

| [[File:Alert.png|left|link=|50px]] || <b>NOTE: Most of the Volvo trucks need an J1708 connection to be able to receive fuel level data</b>

|}

|}