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FMS 20

Source: HDEI FMS-Standard Working group

Version 2.00

This document increase FMS 1.0

General annotations

  • Data might be not available during ignition off
  • Physical Layer according to ISO 11898 (250kb/s)
  • Application Layer according SAE J1939/ 71
  • Data Link Layer according SAE J1939/ 21
  • If there is a discrepancy between definitions in this document and the SAE, the SAE documents are valid only.
  • Mentioned reference no. in this document is referring to SAE document
  • The priority/source address of each partner is different and has to be masked by connected FMS-ECU.
  • In the FMS-ECU a switchable terminating resistor is recommended.
  • If the information is delivered the function/data has to be delivered according FMS-standard definition.
  • If the information is not available the function/data has to be sent as not available according to SAE
  • “not used for FMS-standard” means that there might be data sent according SAE but are not used in FMS-standard interface. If no information is sent, then it has to be sent as “not available”.
  • “reserved for FMS-standard” means that as long as there is no definition it is sent “FF (not available)”

Summary of Suspect Parameter Numbers

PGN SPN (signal) name FMS ver. rate(ms)
65265 597 Brake switch 1.0 100 two bit status
65265 84 wheel based speed 1.0 100 may differ from TCO1
65265 595 cruise control active 1.0 100 two bit status
65265 598 clutch switch 1.0 100 two bit status
65265 976 PTO state 1.0 100 Either SPN 3948 (PTODE) or SPN 976 is sent
61443 91 accelerator pedal position 1 1.0 WW 50 1 Byte
61443 92 Engine Percent Load 1.0 WW 50 1 % / bit, 0 to 125 % operational range
65257 250 Engine total fuel used 1.0 1000 4 bytes, 0 to +2 105 540 607,5 L
65276 96 fuel level 1 1.0 WW 1000 1 Byte
61444 190 engine speed 1.0 WW 20 2 Byte, 0-8031,875 rpm
65258 928 Axle location 1.0 1000
65258 928 Tire location 1.0 1000
65258 582 Axle weight 1.0 1000
65253 247 Engine total hours of Operation 1.0 WW 1000 4 bytes, 0 to 210 554 060,75 h
65260 237 vehicle identification number 1.0 WW 10000 variable, max 200 char.
64977 2806 SW-version supported 1.0 WW 10000 Indicator for SW version supported
64977 2804 Diagnostics supported 1.0 WW 10000 indicator for diagnosis session support
64977 2805 Requests supported 1.0 WW 10000 indicator for request supported
65217 917 High resolution total distance 1.0 WW 1000 4 bytes, 0 - 21 055 406 km; without TCO
65216 914 Service distance 1.0 1000
65132 1611 Vehicle motion 1.0 EU 20/50 With digital tachograph
65132 1613 driver 2 working state 1.0 EU 20/50 With digital tachograph
65132 1612 driver 1 working state 1.0 EU 20/50 With digital tachograph
65132 1614 Vehicle overspeed 1.0 20/50 With digital tachograph
65132 1617 Driver 1 time rel. states 1.0 20/50 With digital tachograph
65132 1618 Driver 2 time rel. states 1.0 20/50 With digital tachograph
65132 1615 Driver 1 card 1.0 EU 20/50 With digital tachograph
65132 1616 Driver 2 card 1.0 EU 20/50 With digital tachograph
65132 1619 Direction indicator 1.0 20/50 With digital tachograph
65132 1620 Tachograph performance 1.0 EU 20/50 With digital tachograph
65132 1621 Handling information 1.0 EU 20/50 With digital tachograph
65132 1622 System event 1.0 EU 20/50 With digital tachograph
65132 1624 Tachograph vehicle speed 1.0 EU 20/50 With digital tachograph - 2 bytes
65262 110 engine coolant temperature 1.0 WW 1000 -40° to 210°
65269 171 Ambient Air Temperature 2.0 WW 1000 0.03125 °C / Bit gain
65131 1625/6 Driver 1 / Driver 2 Identification 2.0 EU 10000 If a driver ID is available the message is sent with a BAM
65266 183 Fuel rate 2.0 WW 100 0.05 L/h per bit, 0 to 3,212.75 L/h
65266 184 Instantaneous Fuel Economy 2.0 WW 100 1/512 km/L per bit, 0 to 125,5 km/L
64932 3948 At least one PTO engaged 2.0 100 Either SPN 3948 or SPN 976 (CCVS) is sent
64777 5054 High resolution total fuel used 2.0 1000 0.001 L/bit, 0 to 4,211,081.215 L
WW means World Wide mandatory.
EU means Europe mandatory.

Parameters for FMS gateway (according SAE J1939)

14. Ambient Conditions: AMB

Ambient Conditions: AMB- FEF5 - 65269 PGN
1.000ms Rate
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte#
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 Bit#
Not used
for FMS-Standard
Not used
for FMS-Standard
Not used
for FMS-Standard
Ambient air temperature

0.03125ºC/bit gain
-273ºC offset

SPN 171
Not used
for FMS-Standard
Not used
for FMS-Standard
Not used
for FMS-Standard
Name

Values

Range
SPN

Ambient Air Temperature: Temperature of air surrounding vehicle.

Mandatory in all factory fitted FMS gateways.

 

15. Driver's Identification: DI

Driver's Identification: DI - FE6B - 65131 PGN
10.000ms Rate
Variable 1-n Variable 1-n Variable 1-n Variable 1-n Variable 1-n Variable 1-n Variable 1-n Variable 1-n Byte#
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 Bit#
Driver1ID*Driver2ID*
String format: Driver 1 Identification - Delimiter (ASCII '*') - Driver 2 Identification - Delimiter (ASCII '*')
If only driver card 1 is present, only the parameter driver 1 identification and two delimiters shall be transmitted.
If only driver card 2 is present, a delimiter followed by parameter driver 2 identification and the second delimiter shall be transmitted.
If no driver cards are present, only the two delimiters shall be sent.
SPN 1625/1626
Name

Values


SPN

The driver ID is only available if a digital tachograph is present.
Driver ID = CardNumber = 16 Byte
Difference to SAE: broadcast instead of on request

Mandatory (EU) in all factory fitted FMS gateways.

 

16. Fuel Economy: LFE

Fuel Economy: LFE - FEF2 - 65266 PGN
100ms Rate
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte#
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 Bit#
Fuel rate

0.05L/h bit gain
0L offset
0 to 3,212.75L/h
SPN 183
Instantaneous fuel economy

1/512Km/L bit gain
0 offset
0 to 125.5Km/L
SPN 184
Not used
for FMS-Standard
Not used
for FMS-Standard
Not used
for FMS-Standard
Not used
for FMS-Standard
Name

Values

Range
SPN

Fuel rate: Amount of fuel consumed by engine per unit of time Instantaneous.
Fuel Economy: Current fuel economy at current vehicle velocity.

Calculated values given as indications, not as contractual values.

Mandatory in all factory fitted FMS gateways.

 

17. PTO Driver Engagement: PTODE

PTO Driver Engagement: PTODE - FDA4 - 64932 PGN
100ms Rate
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte#
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 Bit#
Not used
for FMS-Standard
Not used
for FMS-Standard
Not used
for FMS-Standard
Not used
for FMS-Standard
Not used
for FMS-Standard
Not used
for FMS-Standard
Not used
for FMS-Standard
Not used
for FMS-Standard
At least one PTO engaged
00 No PTO eng.
01 At least one

SPN 3948
Name

Values


SPN

Information relating to the request for engagement, consent for engagement, and status of engagement of various specific physical PTO drives.
This message may be broadcast by one or all controllers involved in the enabling of a given PTO drive.
At least one PTO engaged: Indicates that at least one PTO is engaged
Note: This parameter should only be sent by the controller that has knowledge of all PTO drives on the vehicle (e.g, the FMS gateway).
Individual PTO drive controllers should broadcast this parameter as "not available".
Either SPN 3948 (PTO DE) or SPN 976 (CCVS) is sent. PTO DE message is preferred.

 

18. High Resolution Fuel Consumption (Liquid): HRLFC

High Resolution Fuel Consumption (Liquid): HRLFC - FD09 - 64777 PGN
1000ms Rate
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Byte#
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 Bit#
Not used
for FMS-Standard
Not used
for FMS-Standard
Not used
for FMS-Standard
Not used
for FMS-Standard
High resolution engine total fuel used

0.001L/bit gain
0 offset
0 to 4,294,967.294L
SPN 5054
Name

Values

Range
SPN

Engine fuel consumption accumulators.
High resolution engine total fuel used: Accumulated amount of fuel used during vehicle operation.
High resolution used for calculations and fleet management systems.
Is implemented if technical possible.