What is FMS?
Posted by Squarell Support on 09 December 2013 10:07 AM

In 1999, the truck manufacturer Scania introduced a FMS interface on their models as an accessory. This FMS interface was the first step in opening up engine management data from heavy vehicles. 2 years later on the Transport Logistics fair in Munich, the European truck brands agreed on supporting such a concept to open up vehicle data for the transport companies.

The truck brands Scania, Volvo, MAN, Mercedes Benz, DAF, Iveco and Renault favored this idea and some months later the first FMS implementations were released in their new truck models.
Nowadays FMS CANbus is available in the truck world, but still a few can benefit from it.

The possibilities of FMS standard.
See below some of the parameters that can be retrieved from the FMS CANbus:
• Actual vehicle speed
• Total distance of the truck during life
• Actual fuel consumption
• Total fuel consumption during truck life
• Tachograph speed
• Tachograph driver knobs status
• Tachograph warnings of exceeding drive time deregulations
• Tachograph over reving and direction indicator
• Vehicle Identification (VIN number)
• Brake Switch
• Cruise Control status
• Clutch switch
• PTO on/off
• Throttle position
• Axle weight and position
• Total running hours
• Next regular maintenance
• Engine temperature

At this moment there are three different FMS Standard protocol versions. Every version is updated supporting additional parameters. The detailed specification can be retrieved from

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