Scania CAN interface for FMS Specifications

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CAN interface for FMS

More information on the FMS standard can be found at www.fms-standard.com.

343 377

Connectors C137 and C471 are located under the central electric unit in the instru-

ment panel.

Introduction

This document contains information on the FMS standard, which is an open, common interface produced by many truck manufacturers. From October 2013 onwards, FMS-Standard description Version 03 is supported.

Vehicle production period

Production site Chassis serial number

2013-10-11 -

Södertälje 2 091 978 -

Zwolle 5 337 011 -

Angers 9 180 458 -

Scania’s FMS interface is referred to in this document as RTG, and the bodybuilders’ links their own FMS network to the control unit via a connector.

From February 2009 onwards, the connection is made via connector C137:

Introduction

Vehicle production period

Production site Chassis serial number

2009-01-29 -

Södertälje 2 046 175 -

Zwolle 5 224 881 -

Angers 9 141 335 -

São Bernardo do Campo 3 644 065 -

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CAN interface for FMS

IMPORTANT!

From January 2009 onwards, the connection was made via connector C471:

Vehicle production period

Production site Chassis serial number

- 2009-01-28

Södertälje - 2 046 174

Zwolle - 5 224 880

Angers - 9 141 334

São Bernardo do Campo - 3 644 064

It is possible to install RTG with FMS Version 03 in older vehicles, but it is uncertain if all messages will be sent. The reason for this is that the vehicle’s CAN bus does not support all messages.

When installing RTG with FMS Version 03 in older vehicles, only the existing CAN messages available in the CAN bus, which are described in this document, will be sent.

Introduction

More information can be found in Connecting to RTG further on in this document.

Chassis serial number limits for the different FMS versions are indicated later in this document.

It is not permitted to connect to any other connector or other CAN bus. An incorrect connection could cause the normal functions of the truck to behave irrationally. The truck may even stop and need to be towed.

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CAN interface for FMS

Abbreviations in this document

Abbreviation Explanation

CAN Controller Area Network

COO Koordinator

ECU Electronic Control Unit

FMS Fleet Management System

RTG Road Transport Informatics Gateway

ICL Instrument Cluster System

PGN Parameter Group Number

TCO Tachograph

EBS Electronic Brake System

DTCO Digital tachograph with remote driver card information downloading

OBD On-board diagnostics

EOBD European On-board Diagnostics

TP.CM Transport Protocol - Connection Management

TP.DT Transport Protocol - Data Transfer

Introduction

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CAN interface for FMS

Requirements for CAN communication with the vehicle

This section lists the requirements for CAN communication with the RTG control unit on the external CAN bus. SAE J1939 forms the basis of the protocol, but large parts are not implemented. These parts are SAE J1939-81 (Network Management), main part of SAE J1939-73 (Diagnostics) and parts of SAE J1939-21 (Data Link Layer).

SAE J1939-81 Network Management

The address space in a Scania vehicle is static. Because of this, there is no need for the Network Management described in SAE J1939-81.

• Fixed addressing is used in accordance with Preferred addresses for Industry group 0, Global and Industry group 1, On-highway Equipment.

• Source addresses for equipment which does not normally belong to the vehicle follow the requirements in J1939, ISO 11992 or OBD/EOBD.

Requirements for CAN communication with the vehicle

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CAN interface for FMS

Note:

IMPORTANT!

SAE J1939-21 Data Link Layer

SAE J1939-21 defines five message types:

• Commands - Not supported.

• Requests - Not supported.

• Broadcast/Response - All available information is sent periodically.

• Acknowledgement - Not supported.

• Group Functions - Proprietary messages och Multipacket messages, TP.CM, TP.DT, are supported.

According to section 5.2.1 SAE J1939-21, revised version July 1998, priority bits in message identifiers must be filtered out and ignored by the receivers.

General guidelines

Requirements for CAN communication with the vehicle

• Control units connected to a CAN bus must be able to handle up to 100% CAN bus load with the correct messages with no significant functional limitations or malfunctions.

• Under normal circumstances the CAN bus load should never exceed 80%.

• Avoid closing control loops over the CAN because the guaranteed access time is relatively long and fast control loops require a lot of bandwidth. If closed control loops over the CAN are still required, then they must be fully capable of sending the necessary CAN messages using only half the transmission frequency.

The bodybuilder is responsible for ensuring that the external CAN bus is used correctly.

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CAN interface for FMS

Connectors and cables

• Scania does not use connectors in accordance with SAE J1939.

• Scania uses twisted pair cables (twisted 40 times per metre) with no shield or sheath. The electrical properties (resistance, impedance, capacitance etc.) are defined in SAE J1939-15 Physical Layer Light.

• Scania uses a cross-section of 0.75 mm the frame. CAN connectors (and ECU pins) outside the cab should preferably be gold-plated.

• The following colours and markings apply to the external CAN bus cables: CAN_H must be blue and CAN_L must be white. In order to avoid misunderstanding it is important that the cables retain their colour for the lifetime of the vehicle. CAN low should be marked as CAN_L and CAN high as CAN_H.

for cables inside the cab and 1.5 mm2 on

Connectors and cables

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CAN interface for FMS

Pin numbering on connector C137

1. Fuse for RTG E51: Relay socket for RTG connection

Connection to RTG

Connector C137

Vehicle production period

Production site Chassis serial number

2009-02-09 -

Södertälje 2 046 610 -

Zwolle 5 225 592 -

Angers 9 141 661 -

São Bernardo do Campo 3 644 908 -

Signal Pin Comments

Connection 15 (Ubat) 10

Connection 30 (24 V) 12

Connection 31 (24 V ground) 1

CAN low 9

CAN high 6

CAN low 5

CAN high 8

Connection 15R (Ubat) 11

12 V voltage 3

12 V ground 4

Reserved 2

Reserved 7

Not supported by Scania

Only if vehicle is equipped with a 12 V voltage converter

C137

Connection to RTG

E51

14710

25811

369

307 952

RTG

307 953

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CAN interface for FMS

Connector C471

Vehicle production period

Production site Chassis serial number

- 2009-02-08

Södertälje - 2 046 609

Zwolle - 5 225 591

Angers - 9 141 660

São Bernardo do Campo - 3 644 907

Connect CAN high to connector C471, pin 2, and CAN low to connector C471, pin 1.

Connection to RTG

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CAN interface for FMS

< 30 m

> 0.1 m

< 3 m

RTG

C137

ECU X

ECU Z ECU Y

307 950

1. RTG control unit with termination resistor

2. FMS control unit in the bodywork with termination resistor

Topology

The topology is primarily a bus cable with the nodes connected to the CAN bus with at least 0.1 metres between each node.

• The length of the cables should not exceed 30 metres (main cable) between the connector in the truck and the control unit with the other termination resistor.

• If more than one control unit is connected, the length of the cables between the main cable and control unit should not exceed 3 metres.

• The cables should be as short as possible to minimise the effect of electromagnetic interference.

• The number of control units in the external FMS network should not exceed 9.

The figure shows the principle of the external FMS network topology.

Connection to RTG

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CAN interface for FMS

1. RTG with internal termination resistor

2. Connectors that constitute an interface for bodybuilders

3. Termination resistor fitted in the control unit connector

Termination resistors

The CAN bus cable must be terminated using a 120 Ohm resistor at each end in accordance with SAE J1939-15 Physical Layer.

Depending on the other control units connected to the CAN bus, there must be a 120 Ohm termination resistor in the control unit which is connected to the FMS interface for bodybuilders.

If the control unit is not equipped with an internal termination resistor, an external termination resistor must be connected as close to the control unit as possible (see illustration).

CAN High

CAN Low

ECU X RTG

CAN High

CAN Low

310 812

C137

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CAN interface for FMS

Termination of an external CAN bus

So that CAN communication can work without interference, there must be a 120 Ohm termination resistor at each end of the CAN bus. Check that there is a termination resistor at each end of the CAN bus using a multimeter. The resistance should be 60 Ohm (two 120 Ohm resistors connected in parallel).

A number of different systems can be connected to the cable harness of the external CAN bus. Certain systems have a built-in termination resistor and others are unterminated.

The table shows when there is to be a termination resistor in connector C137 or in the control unit connected to C137.

Systems in the vehicle Termination resistor in

DTCO Scania Communicator

C200

No No Yes Yes

Yes No Yes No

Yes Yes Yes No

No Yes Yes Yes

Yes No No Yes

Yes Yes No Yes

RTG

Termination resistors

the control unit connect-

ed to C137

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CAN interface for FMS

Fault validation of communication (TimeOut)

Avoid CAN communication when the starter key is in the lock or radio positions. Also avoid CAN communication during the start sequence of the control units connected to the external CAN bus.

During normal operation, when the starter key is in the drive position, a message should not be validated as missed (time-out) until at least 5 times the message period time. A longer fault validation time is permitted.

During the engine start sequence, when the starter motor is turning, the supply voltage can be extremely low. Because of this, communication from the RTG control unit cannot be guaranteed during this sequence. For this reason, no fault codes related to CAN communication with the RTG control unit should be set when the system voltage is under 18 V.

When the starter key is turned to the drive position, the RTG control unit starts sending messages within 10,000 ms. A message sent from the FMS control unit cannot be considered missed until after 10,000 ms + 5 x the message period time. Example: If a message has a period time of 100 ms it cannot be considered missed until after 10,000 + 5 x 100 = 10,500 ms. Longer fault validation times are permitted.

Fault validation of communication (Time-Out)

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CAN interface for FMS

Summary of CAN messages

The following is a summary of the messages supported by the CAN interface for FMS.

CAN messages which are sent to the external CAN bus from the RTG interface

Message sent from vehicle Identifier (Hex) Specification FMS standard Scania’s FMS interface

01.00 02.00 03.00

Air Pressure Supply 18 FE AE 30 SAEJ1939-71 X X

Aftertreatment 1 Diesel Exhaust Fluid Tank 1 Information: AT1T1I

Alarm Status Proprietary

Ambient Conditions - K 18 FE F5 27 SAEJ1939-71 X X X

Cab Illumination Message - ICL 18 D0 FF 17 SAEJ1939-71 X

Combination Vehicle Weight: CVW 18 FE 70 25 SAEJ1939-71 X X

Coordinator General Information - K 0C FF B0 27 Scania X

Crash Occurred - AB 18 FF FD 64 Scania X

Cruise Control/Vehicle Speed 18 FE F1 00 SAEJ1939-71 X X X X

CUV Information - V 18 FF B1 1E Scania X

Dash Display - K 18 FE FC 27 SAEJ1939-71 X X X X

Driver’s Identification (DI_cyclic) - FMS (transmitted using BAM)

EBC2 Wheel Speed Proprietary 0C FF 19 0B Scania X

Electronic Brake Controller 1 (EBC1) - A 18 F0 01 0B SAEJ1939-71 X

Electronic Engine Controller 1 (EEC1) - E 0C F0 04 00 SAEJ1939-71 X X X X

Electronic Engine Controller 2 (EEC2) - E 0C F0 03 00 SAEJ1939-71 X X X X

Electronic Retarder Controller1 (ERC1) - RD 18 F0 00 10 SAEJ1939-71 X

18 FE 56 25 SAEJ1939-71 X X

18 FF B4 1D Scania X

18 EC FF 25/18 EB FF 25 SAEJ1939-71 X X X

(RTG)

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CAN interface for FMS

Summary of CAN messages

Message sent from vehicle Identifier (Hex) Specification FMS standard Scania’s FMS interface

01.00 02.00 03.00

Electronic Retarder Controller1 (ERC1) - REX 18 F0 00 29 SAEJ1939-71 X

Electronic Transmission Controller 2 (ETC2) -T 18 F0 05 03 SAEJ1939-71 X

Engine Configuration (EngineConfig) - E (transmitted using

18 EC FF 00/18 EB FF 00 SAEJ1939-71 X

BAM)

Engine Fluid Level/Pressure 1 - K 18 FE EF 27 SAEJ1939-71 X

Engine Hours, Revolutions - E 18 FE E5 00 SAEJ1939-71 X X X X

Engine Temperature 1 - E 18 FE EE 00 SAEJ1939-71 X X X X

Error Message - FMS 18FFFF25 Scania X

FMS-standard Interface Identity/Capabilities (FMS Std Inter-

1C FD D1 25 SAEJ1939-71 X X X X

face) - FMS

FMS Tell Tale Status: FMS1 18 FD 7D 17 SAEJ1939-71 X X

Fuel Consumption - E 18 FE E9 00 SAEJ1939-71 X X X X

Fuel Economy - E 18 FE F2 00 SAEJ1939-71 X X X

General Purpose Message 1 - E 18 FF 60 00 Scania X

High Resolution Fuel Consumption (Liquid) (HRLFC) - FMS 18 FD 09 25 SAEJ1939-71 X

High Resolution Vehicle Distance - TCO 18 FE C1 EE SAEJ1939-71 X X X X

Inlet/Exhaust Conditions 1 - E 18 FE F6 00 SAEJ1939-71 X

PTO Drive Engagement

N/A SAEJ1939-71 X X

PTO Information Proprietary - K 18 FF 90 27 Scania X

Service Information (ServiceInformation) - FMS 18FEC025 SAEJ1939-71 X X X X

Tachograph - TCO1 0C FE 6C EE SAEJ1939-71 X X X X

Time/Date (TimeDate) - ICL 18 FE E6 17 SAEJ1939-71 X

Vehicle Identification (VehicleId) - FMS (transmitted using

18ECFF25/18EBFF25 SAEJ1939-71 X X X X

BAM)

Vehicle Weight (Vehicle Weight) - FMS 18 FE EA 25 SAEJ1939-71 X X X X

(RTG)

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CAN interface for FMS

Summary of CAN messages

Message sent from vehicle Identifier (Hex) Specification FMS standard Scania’s FMS interface

(RTG)

Wheel Brake Lining Remaining Information (EBC4WheelBrakeLiningRemainingInf) - A

a. Only sent if the vehicle has an alarm (LAS). b. According to the standard, either PTO Drive Engagement or CCVS is sent. Scania sends CCVS. c. Only sent if the vehicle is equipped with EBS.

1C FE AC 0B SAEJ1939-71 X

01.00 02.00 03.00

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CAN interface for FMS

Detailed description of CAN messages

The following tables use the concepts below:

• Not defined: Not defined in SAE J1939

• Not used: Defined in SAE J1939 but not used by Scania

For the contents of messages with parameter group numbers (PGN) specified by Scania:

• Not defined: Not defined by Scania

Detailed description of CAN messages

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CAN interface for FMS

Detailed description of CAN messages

Air Pressure Supply - APS

Identifier: 18FEAE30

Transmission interval: 1,000 ms

Byte Bit Length Explanation State Resolution Limits Note

1..2 Not defined

3 1 8 Service Brake Air Pressure, Circuit 1 8 kPa/Bit 0-2,000

Error FE

Not available FF

4 1 8 Service Brake Air Pressure, Circuit 2 8 kPa/Bit 0-2,000 Rear Circuit

Error FE

Not available FF

5..8 Not defined

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CAN interface for FMS

Detailed description of CAN messages

Aftertreatment 1 Diesel Exhaust Fluid Tank 1 Information: AT1T1I

Identifier: 18FE5625

Transmission interval: 1,000 ms

Byte Bit Length Explanation State Resolution Limits Note

1 1 8 Aftertreatment 1 Diesel Exhaust Fluid Tank 1 Level 0.4% 0-100%

Error FE

Not available FF

2..8 Not used

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CAN interface for FMS

Detailed description of CAN messages

Alarm Status Propietary - AL

Identifier: 18 FF B4 1D

Transmission interval: 1,000 ms.

Byte Bit Length Explanation State Resolution Limits Note

114Alarm status

Alarm unset 0000

Alarm set 0001

Alarm triggered 0010

Silent alarm triggered 0011

Alarm set perimeter 0100

Ferry mode 0101

Alarm unset with XPDR failed 0110

Alarm unset with XPDR successed 0111

Work alert 1000

Alarm test 1001

Alarm passive set 1010

Not defined 1100..1101

Reserved 1110

Don't care/take no action 1111

5 4 Not defined

2..8 Not defined

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CAN interface for FMS

Detailed description of CAN messages

Ambient Conditions

Identifier: 18 FE F5 27

Transmission interval: 1,000 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1 8 Barometric pressure 0.5 kPa/bit 0 to 125 kPa

Error indicator FE

Not available FF

2 Not used

4 1 16 Ambient air temperature 0.03125 °C/bit -273 to +1 735.0 °C

Error indicator FExx

Not available FFxx

6..8 Not used

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CAN interface for FMS

Detailed description of CAN messages

Cab Illumination Message

Identifier: 18 D0 FF 17

Transmission interval: 100 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1 8 Requested illumination percentage 0.4% 0 to 100%

Error FEh

Not available FFh

2..8 Not defined

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CAN interface for FMS

Detailed description of CAN messages

Combination Vehicle Weight: CVW

Identifier: 18FE7025

Transmission interval: 10,000 ms

Byte Bit Length Explanation State Resolution Limits Note

1..2 Not used

3 1 16 Gross Combination Vehicle Weight 10 kg 0-642550 kg C

Error FE

Not available FF

3..8 Not used

C: This information shall NOT be used for any calculation that needs an exact value, this parameter only shows un-laden/semi-laden/laden vehicle.

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CAN interface for FMS

Coordinator General Information

Identifier: 0C FF B0 27

Detailed description of CAN messages

Transmission interval: 200 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1..3 Not defined

4 1..2 Not defined

3 2 Engine stop switch

Engine stop switch not activated 00

Engine stop switch activated 01

Error 10

Not available 11

5 2 Not defined

7 2 0,8 bar parking brake

0,8 bar parking brake not set 00

0,8 bar parking brake set 01

Error indicator 10

Not available or not installed 11

5 1..6 Not defined

7 2 Gearbox in reverse A

Gearbox not in reverse 00

Gearbox in reverse 01

Error 10

1. The normal transmission interval is 200 ms. If certain parameters are modified, the transmission interval is 10 ms.

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Not available 11

6..8 Not defined

A: Information is taken from ETC2 on all gearboxes apart from manual gearboxes without a torque converter.

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CAN interface for FMS

Detailed description of CAN messages

Crash Occured

Identifier: 18 FF FD 64

Transmission interval: 1,000 ms

Only sent from BWS if Crash Safety System (CSS) is installed.

Byte Bit Length Explanation State Resolution Limits Note

1..8 Not used

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CAN interface for FMS

Detailed description of CAN messages

Cruise Control/Vehicle Speed

Identifier: 18 FE F1 00

Transmission interval: 100 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1..2 Not used

3 2 Parking brake switch A

Parking brake not set 00

Parking brake set 01

Error indicator 10

Not available or not installed 11

5..6 Not used

7..8 Not defined

2 1 16 Wheel-based vehicle speed 1/256 km/h per bit 0 to 251 km/h

Error indicator FExx

Not available FFxx

4 1 2 Cruise control active

Cruise control switched off 00

Cruise control switched on 01

Error indicator 10

Not available or not installed 11

32Brake switch

Brake pedal released 00

Brake pedal depressed 01

Error indicator 10

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Not available or not installed 11

7 2 Clutch switch

Clutch pedal released 00

Clutch pedal depressed 01

Error indicator 10

Not available or not installed 11

5 1 2 Cruise control set switch

Cruise control activator not in the position "set" 00

Cruise control activator in position "set" 01

Error indicator 10

Not available or not installed 11

3 2 Cruise control coast (decelerate) switch

Cruise control activator not in the position "coast" 00

Cruise control activator in position "coast" 01

Error indicator 10

Not available or not installed 11

5 2 Cruise control resume switch

Cruise control activator not in the position "resume" 00

Cruise control activator in position "resume" 01

Error indicator 10

Not available or not installed 11

7 2 Cruise control accelerate switch

Cruise control activator not in the position "accelerate" 00

Cruise control activator in position "accelerate" 01

Error indicator 10

Not available or not installed 11

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

6 1 8 Cruise control set speed 1 km/h 0 to 250 km/h

Error indicator FEh

Not available FEh

7 1 5 PTO State 0 to 31

Off/disabled 00000

Hold 00001

Remote Hold 00010

Standby 00011

Remote standby 00100

Set 00101 B

Decelerate/coast 00110

Resume 00111

Accelerate 01000

Accelerate override 01001

Preprogrammed set speed 1 01010

Preprogrammed set speed 2 01011

Preprogrammed set speed 3 01100

Preprogrammed set speed 4 01101

Preprogrammed set speed 5 01110

Preprogrammed set speed 6 01111

Preprogrammed set speed 7 10000

Preprogrammed set speed 8 10001

Not available 11111

6 3 Cruise control states

Off/disabled 000

Hold 001

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Accelerate 010

Decelerate/coast 011

Resume 100

Set 101

Accelerator override 110

Not available 111

8 Not used

A: Information from a pressure sensor on the parking brake lever. The “Parking brake not set” parameter is sent when the pressure is more than 6 bar.

B: Version differs from the FMS standard. PTO state 1 in position Set is shown as 0001 instead of 00101 for the following vehicles.

Vehicle production period

Production site Chassis serial number

- 2008-01-22

Södertälje - 2 034 902

Zwolle - 5 196 997

Angers - 9 129 358

São Bernardo do Campo - 3 621 168

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CAN interface for FMS

Detailed description of CAN messages

CUV information - V

Identifier: 18 FF B1 1E

Transmission interval: 1,000 ms

Always sent from BWS.

The message should be sent out once every 1,000 ms and when any of the parameters changes, but not more rapidly than 20 ms.

Byte Bit Length Explanation State Resolution Limits Note

1 1 2 Main beam intended A

Off 00

On 01

Error 10

Not available 11

3 2 Dipped beam intended

Off 00

On 01

Error 10

Not available 11

5..8 Not defined

2 1 2 Front fog lamp intended

Off 00

On 01

Error 10

Not available 11

3 2 Rear fog lamp intended

Off 00

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

On 01

Error 10

Not available 11

5 2 Reversing lamp intended

Off 00

On 01

Error 10

Not available 11

7 2 Stop lamp intended

Off 00

On 01

Error 10

Not available 11

3 1 2 Wiper intended

Off 00

On 01

Error 10

Not available 11

3..4 Not defined

5 2 Direction indicator lamp status truck left

Off 00

On 01

Error 10

Not available 11

7 2 Direction indicator lamp status truck right

Off 00

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

On 01

Error 10

Not available 11

4 1 2 Direction indicator lamp status trailer left

Off 00

On 01

Error 10

Not available 11

3 2 Direction indicator lamp status trailer right

Off 00

On 01

Error 10

Not available 11

5 2 Direction indicator lever status

Off 00

On 01

Error 10

Not available 11 B

7 2 Horn intended

Off 00

On 01

Error 10

Not available 11

5..6 Not defined

7 1 2 Work light toggle switch

Off 00

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

On 01

Error 10

Not available 11

3 2 Work light output status

Off 00

On 01

Error 10

Not available 11

5258

Off 00

On 01

Error 10

Not available 11

7..8 Not defined

8 1 4 Not defined

5 2 Parking lights

Switch not in parking lights position 00

Switch in parking lights position 01

Error 10

Not available 11

7 2 Driving lights

Switch not in driving lights position 00

Switch in driving lights position 01

Error 10

Not available 11

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CAN interface for FMS

A: Sent as ON if any of the lamps is activated.

B: Sent if the direction indicator lever has a normal position or if a fault has been detected.

Detailed description of CAN messages

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CAN interface for FMS

Detailed description of CAN messages

Dash Display

Identifier: 18 FE FC 27

Transmission interval: 1,000 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 Not used

2 1 8 Fuel level 0.4%/bit 0 to 100%

Error FEh

Not available FFh

3..6 Not used

7..8 Not defined

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CAN interface for FMS

Detailed description of CAN messages

Driver’s Identification (DI_cyclic)

Identifier: 18 EC FF 25/18 EB FF 25

Transmission interval: 10,000 ms

Sent as BAM/TP.DT.

Parameter group numbers: FE6B (65131 decimal)

Byte Bit Length Explanation State Resolution Limits Note

1 1 8 Driver 1 Identifier (Driver1Identifier) 1 A

2 1 8 Delimiter (Delimiter) 1 B

3 1 8 Driver 2 Identifier (Driver2Identifier) 1 C

4 1 8 Delimiter (Delimiter) 1 D

A: Length m

B: Starts at byte m

C: Length n, starts at byte m+1

D: Starts at byte m+1+n

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CAN interface for FMS

Note:

Detailed description of CAN messages

EBC2 Wheel Speed Proprietary

Identifier: 0C FF 19 0B

Transmission interval: 50 ms

The message is defined in the same way as J1939 PGN (Wheel Speed Information) but has a higher updating frequency.

Byte Bit Length Explanation State Resolution Limits Note

1 1 16 Mean front axle speed 1/256 kph 251 kph

Error indicator FExx

Not available FFxx

3 1 8 Relative speed front axle left 1/16 kph -7.8125 to +7.8125 kph

Error indicator FE

Not available FF

4 1 8 Relative speed front axle right 1/16 kph -7.8125 to +7.8125 kph

Error indicator FE

Not available FF

5 1 8 Relative speed drive axle left 1/16 kph -7.8125 to +7.8125 kph

Error indicator FE

Not available FF

6 1 8 Relative speed drive axle right 1/16 kph -7.8125 to +7.8125 kph

Error indicator FE

Not available FF

7 1 8 Relative speed third axle left 1/16 kph -7.8125 to +7.8125 kph

Error indicator FE

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Not available FF

8 1 8 Relative Speed Third Axle Right -7.8125 to +7.8125 kph

Error indicator FE

Not available FF

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CAN interface for FMS

Detailed description of CAN messages

Electronic Brake Controller 1

Identifier: 18 F0 01 0B

Transmission interval: 100 ms and if there is a change in the condition of the EBS brake switch parameter.

Always sent from BWS.

When no ABS or EBS system is installed, only the parameter ’Brake pedal position’is sent.

Byte Bit Length Explanation State Resolution Limits Note

1 1 2 ASR engine control active

ASR engine control passive but installed 00

ASR engine control active 01

Not available 11 A

3 2 ASR brake control active

ASR brake control passive but installed 00

ASR brake control active 01

Not available 11 A

5 2 Anti-lock braking (ABS) active

ABS passive but installed 00

ABS active 01

Not available 11

7 2 EBS brake switch

Brake pedal is not being pressed 00

Brake pedal is being pressed 01

Error 10

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Not available 11

2 1 8 Brake pedal position 0.4%/bit 0 to 100%

Error indicator FE

Not available FF

3 1 2 ABS offroad switch B

ABS offroad switch passive 00

ABS offroad switch active 01

Not available 10 C

3 2 ASR offroad switch B

ASR offroad switch passive 00

ASR offroad switch active 01

Not available 10

5 2 ASR hill holder switch

ASR hill holder switch passive 00

ASR hill holder switch active 01

Error 10

Not available 11

7 2 Traction control override switch

Off 00

On 01

Error 10

Not available 11

4 1 2 Accelerator interlock switch

Off 00

On 01

Error 10

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Not available 11

3 2 Engine derate switch

Off 00

On 01

Error 10

Not available 11

5 2 Auxiliary engine shutdown switch

Off 00

On 01

Error 10

Not available 11

7 2 Remote accelerator enable switch

Off 00

On 01

Error 10

Not available 11

5 1 8 Engine retarder selection

Error 10

Not available 11

6 1 2 ABS fully operational

ABS not fully operational 00

ABS fully operational 01

3 2 EBS red warning state D

Off 00

On 01

5 2 ABS/EBS amber warning state

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Off 00

On 01

Take no action 11

7 2 ATC/ASR Lamp state (Powered vehicle)

Off 00

On 01

Reserved 10

Take no action 11

7 1 8 Source adress of controlling device for brake control 0 to 250 E

Reserved FEh

Take no action FFh

8 1..2 Not defined

3 2 Halt brake switch

Halt brake switch passive 00

Halt brake switch active 01

Error 10

Not available 11

52Trailer ABS status

Trlr ABS Stts Infrmtn Avlbl Bt Nt Actv 00

Trailer ABS active 01

Reserved 10

Trlr ABS Stts Infrmtn Nt Avlbl Prmtr N 11

7 2 Tractor mounted trailer ABS warning signal

Off 00

On 01

Reserved 10

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Take no action 11

A: Only sent when ASR is not installed.

B: Describes the function, not the switch position. 00 when the function is inactive, 01 when it is active.

C: Only sent when ABS off-road is not installed.

D: Only sent if EBS is installed.

E: For ACS use.

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CAN interface for FMS

Detailed description of CAN messages

Electronic Engine Controller 1

Identifier: 0C F0 04 00

Transmission interval: 20 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1 4 Engine and retarder torque mode A

Low idle governor 0000

Accelerator pedal 0001

Cruise control 0010

PTO governor 0011

Road speed governing 0100

ASR control 0101

Transmission control 0110

Not used 0111

Torque limiting 1000

High speed governor 1001

Not used 1010

Not used 1011

Not defined 1100

Not used 1101

Other 1110

Not available 1111

5 4 Actual engine - percent torque high resolution 0.125 0 to 0.875% B

Not available 1000

Not available 1001

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Not available 1010

Not available 1011

Not available 1100

Not available 1101

Not available 1110

Not available 1111

2 1 8 Drivers demand engine - percent torque 1% -125% to +125%

Error indicator FEh

Not available FFh

3 1 8 Actual engine - percent torque percent torque: 1% -125% - offset

Error indicator FEh

Not available FFh

4 1 16 Engine speed 0.125 r/min 0 to 8 031.875 r/min

Error indicator FExxh

Not available FFxxh

6 1 8 Source address of controlling device for engine control 1 0 to 250

Error FE

Take no action FF

7 1 4 Engine starter mode 1 0 to 15

Start not rqed 0000

Starter active gear not engaged 0001

Starter active gear engaged 0010

Strt fnshd strtr nt actv aftr hvng bn a 0011

Strtr inhbtd d to eng already running 0100

Strtr inhbtd d to eng nt ready for start 0101

Strtr inhbtd d to drv in enggd othr trns 0110

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Strtr inhbtd d to active immobilizer 0111

Strtr inhbtd due to starter overtemp 1000

1011 reserved 1001

Starter inhibited reason unknown 1100

Error 1110

Not available 1111

5..8 Not defined

8 1 8 Engine demand - percent torque 1 -125 to 125%

Error FE

Not available FF

A: The message Not available is only sent when the engine is not running.

B: Bit pattern 1000-1111 = Not available.

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CAN interface for FMS

Detailed description of CAN messages

Electronic Engine Controller 2

Identifier: 0C F0 03 00

Transmission interval: 50 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1 2 Accelerator pedal low idle switch

Accelerator pedal not in low idle condition 00

Accelerator pedal in low idle condition 01

Error indicator 10

Not available 11

3 2 Accelerator pedal kickdown switch

Kickdown passive 00

Kickdown active 01

Error indicator 10

Not available 11

5 2 Road speed limit status

Active 00

Not active 01

7 2 Accelerator pedal 2 low idle switch

Accl pedal not in low idle condition 00

Accel pedal in low idle condition 01

Error 10

Not available 11

2 1 8 Accelerator pedal position 0.4% 0 to 100%

Error indicator FE

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Not available FF

3 1 8 Percent load at current speed 1% 0 to 125%

Error indicator FE

Not available FF

4 1 8 Remote accelerator pedal position 0.4% 0 to 100%

Error indicator FE

Not available FF

5 1 8 Accelerator pedal position 2 0.4% 0 to 100%

6 1 2 Vehicle acceleration rate limit status

Limit not active 00

Limit active 01

Reserved 10

Not available 11

3..8 Not defined

7 1..4 Not used

5..8 Not defined

8 Not used

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CAN interface for FMS

Detailed description of CAN messages

Electronic Retarder Controller 1 - RD

Identifier: 18F00010

Transmission interval: 100 ms

Byte Bit Length Explanation State Resolution Limits Note

1 1 4 Retarder Torque Mode 1 0 - 15

No request (default mode) 0x0

Operator selection 0x1

Cruise control 0x2

PTO Governor 0x3

Road Speed Governing 0x4

ASR Control 0x5

Transmission Control 0x6

ABS control 0x7

Torque Limiting 0x8

High Speed Governor 0x9

Brake System 0xA

Remote accelerator 0xB

Not defined 0xC

White smoke limiting 0xD

Other 0xE

TakeNoAction 0xF

2 1 8 Actual Retarder Percent Torque 1 -125 - 125 A

Retarder Brake Assist Disabled 0x0

Retarder Brake Assist Enabled 0x1

Error 0x2

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Not available 0x3

3..6 Not used

7 1 8 Retarder Selection non-engine 0.4%/bit 0-100%

A: 0% => retarder not braking, <0% => retarder braking

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CAN interface for FMS

Detailed description of CAN messages

Electronic Retarder Controller 1 - REX

Identifier: 18 F0 00 29

Transmission interval: 100 ms

Byte Bit Length Explanation State Resolution Limits Note

1 1 4 Engine and Retarder Torque Mode 1 0 - 15 A

No request (default mode) 0000

Operator selection 0001

Cruise control 0010

PTO governor 0011

Road speed governing 0100

ASR control 0101

Transmission control 0110

ABS control 0111

Torque limiting 1000

High speed governor 1001

Brake system 1010

Remote accelerator 1011

Not defined 1100

White smoke limiting 1101

Other 1110

Take no action 1111

5 2 Retarder Enable - Brake Assist Switch

Retarder brake assist disabled 00

Retarder brake assist enabled 01

Error 10

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Not available 11

7 2 Retarder Enable - Shift Assist Switch

Retarder shift assist disabled 00

Retarder shift assist enabled 01

Error 10

Not available 11

2 1 8 Actual Retarder Percent Torque -125 - 125% B

Error FE

Not available FF

3 1 8 Intended Retarder Percent Torque -125 - 125%

Error FE

Not available FF

4 1 2 Engine Coolant Load Increase

No engine coolant load increase 00

Engine coolant load increase 01

Reserved 10

Take no action 11

3 2 Retarder Requesting Brake Light

Not active 00

Active 01

Reserved 10

Take no action 11

5 2 Retarder Road Speed Limit Switch

Road speed limiting by retarder is disabled 00

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Road speed limiting by retarder is enabled. The road speed that the retarder will limit will be determined when the switchtransitions from 00 to 01

Error 10

Not available 11

7 2 Retarder Road Speed Exceeded Status

Road speed limiting by retarder is disabled 00

Road speed limiting by retarder is enabled. The road speed that the retarder will limit will be determined when the switch transitions from 00 to 01

Error 10

Not available 11

5 1 8 Source Address Of Controlling Device For Retarder Control 0 - 253

Error FE

Take no action FF

6 1 8 Drivers Demand Retarder Percent Torque -125 - 125%

7 1 8 Retarder Selection Non Engine 0,4 0 - 100%

8 1 8 Actual Max Available Retarder Percent Torque -125 - 125%

A: The values 1, 2, 7, 8 and 10 switch on the brake lamps when the actual percentage retarder torque reaches a pre-defined level. Note that this only applies if the message ”RetarderRqingBrakeLight” is not received.

B: 0% = retarder not braking, <0% = retarder braking.

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CAN interface for FMS

Detailed description of CAN messages

Electronic Retarder Controller 1 - RD

Identifier: 18 F0 00 10

Transmission interval: 100 ms

Sent from BWS if a retarder or an Allison automatic gearbox is installed.

Byte Bit Length Explanation State Resolution Limits Note

1 1 4 Engine and retarder torque mode

No request (default mode) 0000

Operator selection 0001 A

Cruise control 0010

PTO governor 0011

Road speed governing 0100

ASR control 0101

Transmission control 0110

ABS control 0111

Torque limiting 1000

High speed governor 1001

Brake system 1010

Remote accelerator 1011

Not defined 1100

White smoke limiting 1101

Other 1110

Not available 1111 B

5 2 Retarder enable - brake assist switch

Retarder - brake assist disabled 00

Retarder - brake assist enabled 01

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Error indicator 10

Not available or not installed 11

7..8 Not used

2 1 8 Actual retarder - percent torque 1%/bit -125% to 0% C

Error indicator FE

Not available FF

3 1 8 Intended retarder percent torque 1%/bit 125% offset -125% to 125%

Error indicator FEh

Not available FFh

4 1..2 Not used

3 2 Retarder requesting brake light

Not active 00

Active 01

Reserved 10

Don’t care/take no action 11

5..8 Not defined

5 1 8 Source address of controlling device for retarder control 1/bit 0 to 253 D

Reserved FEh

Don’t care/take no action FFh

6..8 Not used

A: Retarder lever.

B: When no external unit is controlling the retarder.

C: 0% retarder not braking, <0% retarder braking.

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CAN interface for FMS

D: Source address #10 is sent when the retarder is not being controlled by an external control unit.

Detailed description of CAN messages

11:90-02 Issue 7 en-GB 56 (92)

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CAN interface for FMS

Detailed description of CAN messages

Electronic Transmission Controller 2

Identifier: 18 F0 05 03

Transmission interval: 100 ms

Always sent from BWS. If the vehicle has a manual gearbox, the message has no content.

Byte Bit Length Explanation State Resolution Limits Note

1 1 8 Selected gear, - rev, + forw, 0 neut, 126 park 1 gear -125 to +125

Reserved FE

Don’t care/take no action FF

2 1 16 Actual gear ratio 0.001 0 to 64.255

Error indicator FExx

Not available FFxx

4 1 8 Current gear, - rev, + forw, 0 neut, 126 park 1 gear -125 to +125

Error indicator FE

Not available FF

5 1 16 Transmission requested range ASCII 0 to 255 A

Reserved FExx

Don’t care/take no action FFxx

7 1 16 Transmission current range ASCII 0 to 255 A

Reserved FExx

Don’t care/take no action FFxx

A: Only sent if the vehicle has an Allison automatic gearbox.

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CAN interface for FMS

Detailed description of CAN messages

Engine Configuration

Identifier: 18 EC FF 00/18 EB FF 00

Transmission interval: 100 ms Sent with BAM/TP.DT.

The PGN for engine configuration in J1939 is 00 FE E3.

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1 16 Engine speed at idle, point 1 0.125 r/min 0 to 8 031.875 r/min

Error indicator FExx

Not available FFxx

3 1 8 Percent torque at idle, point 1 1% -125% to +125%

Error indicator FE

Not available FF

4 1 16 Engine speed at point 2 0.125 r/min 0 to 8 031.875 r/min

Error indicator FExx

Not available FFxx

6 1 8 Percent torque at point 2 1% -125% to +125%

Error indicator FE

Not available FF

7 1 16 Engine speed at point 3 0.125 r/min 0 to 8 031.875 r/min

Error indicator FExx

Not available FFxx

9 1 8 Percent torque at point 3 1% -125% to +125%

Error indicator FE

Not available FF

10 1 16 Engine speed at point 4 0.125 r/min 0 to 8 031.875 r/min

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Error indicator FExx

Not available FFxx

12 1 8 Percent torque at point 4 1% -125% to +125%

Error indicator FE

Not available FF

13 1 16 Engine speed at point 5 0.125 r/min 0 to 8 031.875 r/min

Error indicator FExx

Not available FFxx

15 1 8 Percent torque at point 5 1% -125% to +125%

Error indicator FE

Not available FF

16 1 16 Engine speed at high idle, point 6 0.125 r/min 0 to 8 031.875 r/min

Error indicator FExx

Not available FFxx

20 1 16 Reference engine torque 1 Nm 0 to 64 255 Nm

Error indicator FExx

Not available FFxx

22 1 16 Maximum momentary engine override speed, point 7 0.125 r/min 0 to 8 031.875 r/min

Error indicator FExx

Not available FFxx

24 1 8 Maximum momentary over-ride time limit 0.1 s 0 to 25 s

Error indicator FE

Not available FF

26 1 8 Requested speed control range upper limit 10 r/min 0 to 2 500r/min

Error indicator FE

Not available FF

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CAN interface for FMS

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

27 1 8 Requested torque control range lower limit 1% -125 to +125%

Error indicator FE

Not available FF

28 1 8 Requested torque control range upper limit 1% -125 to +125%

Error indicator FE

Not available FF

29..34 Not used

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Detailed description of CAN messages

Engine Fluid Level/Pressure 1

Identifier: 18 FE EF 27

Transmission interval: 500 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1 8 Fuel delivery pressure 4 0 to 1000 kPa

Error FExx

Not available FFxx

2 1 8 Extended crankcase blowby pressure 0.05 0 to 125 kPa

Error FE

Not available FF

3 1 8 Engine oil level 0.4 0 to 100%

Error FE

Not available FF

4 1 8 Engine oil pressure 4 kPA 0 to 1 000 kPa

Error FE

Not available FF

5 1 16 Crankcase pressure 0.0078125 -250 to 251.99 kPa

Error FExx

Not available FFxx

7 1 8 Coolant pressure 2 0 to 500 kPa

Error FExx

Not available FFxx

8 1 8 Coolant level 0,4% 0 to 100% A

Error FE

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Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Not available FF

A: Level is only sent as 0% or 80%.

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Detailed description of CAN messages

Engine Hours, Revolutions

Identifier: 18 FE E5 00

Transmission interval: 1,000 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1 32 Total engine hours 0.05 h/bit 0 to 210 554 060.75 h

Error FEh

Not available FFh

5..8 Not used

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Detailed description of CAN messages

Engine Temperature

Identifier: 18 FE EE 00

Transmission interval: 1,000 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1 8 Engine coolant temperature 1°C -40 to +210 °C

Error indicator FE

Not available FF

2 1 8 Fuel temperature 1 °C -40 to +210 °C A

Error indicator FE

Not available FF

3 1 16 Engine oil temperature 0.03125 -273 to +1735 °C

Error FExx

Not available FFxx

5 1 16 Turbo oil temperature 0.03125 -273 to +1735 °C

Error FExx

Not available FFxx

7 1 8 Engine intercooler temp 1 °C -40 to +210 °C

Error indicator FE

Not available FF

8 1 8 Engine intercooler thermostat opening 0.4% 0 to 100%

Error indicator FE

Not available FF

A: Only sent if the vehicle has HPI unit injectors.

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CAN interface for FMS

Detailed description of CAN messages

Error Message (Error) - FMS

Identifier: 18 FF FF 25

Transmission interval: 1,000 ms

Byte Bit Length Explanation State Resolution Limits Note

1 1 8 Error Value (ErrorValue) 1

No errors detected 0x0

Parameter for computation missing 0x1

No messages available on Vehicle CAN bus 0x2

Internal error 0x3

Error 0xFE

Not available 0xFF

2 1 8 Software Number (SoftwareNumber) 1 0-250

Error 0xFE

Not available 0xFF

3...8 Not defined

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Detailed description of CAN messages

FMS Tell Tale Status: FMS1

Identifier: 18FD7D17

Transmission interval: 1,000 ms

Note: See the “FMS-Standard description Version 03” documentation at "http://fmsstandard.com/" for details about the message.

Byte Bit Length Explanation State Resolution Limits Note

1 1 4 Telltale Block Identifier 1 0 0 - 0

Don’tCare 0x0F

1 5 3 Telltale Status 1 1 0 0 - 0

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

Not available 0x07

2 1 3 Telltale Status 2 1 0 0 - 0

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

Not available 0x07

2 5 3 Telltale Status 3 1 0 0 - 0

Off 0x00

Condition Red 0x01

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Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

Not available 0x07

3 1 3 Telltale Status 4 1 0 0 - 0

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

Not available 0x07

3 5 3 Telltale Status 5 1 0 0 - 0

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

Not available 0x07

4 1 3 Telltale Status 6 1 0 0 - 0

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

Not available 0x07

4 5 3 Telltale Status 7 1 0 0 - 0

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Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

Not available 0x07

5 1 3 Telltale Status 8 1 0 0 - 0

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

Not available 0x07

5 5 3 Telltale Status 9 1 0 0 - 0

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

Not available 0x07

6 1 3 Telltale Status 10 1 0 0 - 0

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

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Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Not available 0x07

6 5 3 Telltale Status 11 1 0 0 - 0

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

Not available 0x07

7 1 3 Telltale Status 12 1 0 0 - 0

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

Not available 0x07

7 5 3 Telltale Status 13 1 0 0 - 0

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

Not available 0x07

8 1 3 Telltale Status 14 1 0 0 - 0

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

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Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

Condition Info 0x03

Reserved 0x04

Not available 0x07

8 5 3 Telltale Status 15 1 0 0 - 0

Off 0x00

Condition Red 0x01

Condition Yellow 0x02

Condition Info 0x03

Reserved 0x04

Not available 0x07

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Detailed description of CAN messages

FMS-standard Interface

Identifier: 1C FD D1 25

Transmission interval: 10,000 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1 2 FMS-standard diagnostics supported

Diagnostics is not supported 00

Diagnostics is supported 01

Reserved 10

Don’t care/Take no action 11

3 2 FMS-standard requests supported

On request mode is not supported 00

On request mode is supported 01

Reserved 10

Don’t care/Take no action 11

5..8 Not defined

2 1 32 FMS-standard SW-version supported ASCII

Error FExxxxxxh

Not available FFxxxxxxh

6..8 Not defined

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Detailed description of CAN messages

Fuel Consumption

Identifier: 18 FE E9 00

Transmission interval: 1,000 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1..4 Not used

5 1 32 Total fuel used 0.5 l/bit 0 to 2 105 540 607.5 l

Error FExxxxxxh

Not available FFxxxxxxh

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Detailed description of CAN messages

Fuel Economy

Identifier: 18 FE F2 00

Transmission interval: 100 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1 16 Fuel rate 0.05 l/h per bit 0 to 3 212.75 l/h

Error FExxh

Not available FFxxh

3 1 16 Instantaneous fuel economy 1/512 km/l per bit 0 to 125.5 km/l

Error FExxh

Not available FFxxh

5 1 16 Average fuel economy 1/512 km/l per bit 0 to 125.5 km/l

Error FExxh

Not available FFxxh

7 1 8 Throttle position 0.4% 0 to 100%

Error FExxh

Not available FFxxh

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Detailed description of CAN messages

General Purpose message 1

Identifier: 18 FF 60 00

Transmission interval: 5,000 ms

Byte Bit Length Explanation State Resolution Limits Note

1 1 32 Chassi no. 1/bit 0h to FFFFFFFFh A

Error indicator FExxxxxx

Not available FFxxxxxx B

5..8 Not defined

A: Chassis serial number is sent as a decimal value, i.e. a number with a number base of 10.

B: No chassis serial number is programmed in the ECU.

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Detailed description of CAN messages

High Resolution Fuel Consumption (Liquid) (HRLFC)

Identifier: 18 FD 09 25

Transmission interval: 1,000 ms

Byte Bit Length Explanation State Resolution Limits Note

1 1 32 Engine Trip Fuel (EngineTripFuel) 0.001 0 - 4211081.215 A

Error 0xFExxxxx

Not available 0xFFxxxxx

5 1 32 High Resolution Engine Total Fuel Used (HighResEngineTotal-

FuelUsed)

Error 0xFExxxxx

Not available 0xFFxxxxx

0.001 0 - 4211081.215 A

A: Only sent with NotAvailable

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Detailed description of CAN messages

High Resolution Vehicle Distance

Identifier: 18 FE C1 EE

Transmission interval: 1,000 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1 32 High resolution total vehicle distance 5 m/bit 0 to 21 055 406 km

Error FExxxxxxh

Not available FFxxxxxxh

5 1 32 High resolution trip distance 5 m/bit 0 to 21 055 406 km

Error FExxxxxxh

Not available FFxxxxxxh

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Detailed description of CAN messages

Inlet/Exhaust Conditions

Identifier: 18 FE F6 00

Transmission interval: 500 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 Not used

2 1 8 Boost pressure 2 kPa 0 to 500 kPa

Error indicator FE

Not available FF

3 1 8 Intake manifold temperature 1 °C -40 to +210 °C

Error indicator FE

Not available FF

4..8 Not used

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Detailed description of CAN messages

PTO Information Proprietary - K

Identifier: 18 FF 90 27

Transmission interval: 250 ms

Byte Bit Length Explanation State Resolution Limits Note

1 1 2 PTO_ED 1 (PTO_ED1) 1 0-3

Not engaged 0x0

Engaged 0x1

Error 0x2

Not available 0x3

3 2 PTO_ED 2 (PTO_ED2) 1

Not engaged 0x0

Engaged 0x1

Error 0x2

Not available 0x3

5..8 Not defined

2 1 2 PTO_EK 1 (PTO_EK1) 1

Not engaged 0x0

Engaged 0x1

Error 0x2

Not available 0x3

3 2 PTO_EK 2 (PTO_EK2) 1

Not engaged 0x0

Engaged 0x1

Error 0x2

Not available 0x3

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Byte Bit Length Explanation State Resolution Limits Note

5..8 Not defined

3 1 2 PTO_EG 1 (PTO_EG1) 1

Not engaged 0x0

Engaged 0x1

Error 0x2

Not available 0x3

3 2 PTO_EG 2 (PTO_EG2)

Not engaged 0x0

Engaged 0x1

Error 0x2

Not available 0x3

5..8 Not defined

4 1 2 PTO_AWD 1 (PTO_AWD1) 1

Not engaged 0x0

Engaged 0x1

Error 0x2

Not available 0x3

3 2 PTO_AWD 2 (PTO_AWD2) 1

Not engaged 0x0

Engaged 0x1

Error 0x2

Not available 0x3

5..8 Not defined

5..6 Not defined

7 1 2 PTO_Engaged (PTO_Engaged) 1 A

PTO Not engaged 0x0

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Byte Bit Length Explanation State Resolution Limits Note

PTO Engaged 0x1

Error 0x2

Not available 0x3

3 2 PTO Split Shaft (PTO_SplitShaft) 1

Not engaged 0x0

Engaged 0x1

Error 0x2

Not available 0x3

5..8 Not defined

8 1 8 Not defined

A: All power take-offs have the Boolean OR logic.

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Detailed description of CAN messages

Service Information (ServiceInformation) - FMS

Identifier: 18 FE C0 25

Transmission interval: 1,000 ms

Byte Bit Length Explanation State Resolution Limits Note

1 Not defined

2 1 16 ServiceDistance (ServiceDistance) 5 - 160 635 - 160 640 km (off-

set - 160 635)

Error 0xFE

Not available 0xFF

3...8 Not defined

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Detailed description of CAN messages

Tachograph - TCO1

Identifier: 0C FE 6C EE

Transmission interval: 20 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1 3 Driver 1 working state

Rest 000

Availability 001

Work 010

Drive 011

101 reserved 100

Error 110

Not available 111

4 3 Driver 2 working state

Rest 000

Availability 001

Work 010

Drive 011

101 reserved 100

Error 110

Not available 111

7 2 Drive recognize

Vehicle not in motion 00

Vehicle in motion 01

Error 10

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Byte Bit Length Explanation State Resolution Limits Note

Not available 11

2 1 4 Driver 1 time related states A

Normal/no limits reached 0000

15 minutes before 4½h 0001

4½h reached 0010

15 minutes before 9h 0011

9h reached 0100

15 minutes before 16h 0101

16h reached 0110

1100 reserved 0111

Other 1101

Error 1110

Not available 1111

5 2 Driver card, driver 1 A

Driver card not present 00

Driver card present 01

Error 10

Not available 11

7 2 Overspeed A

No overspeed 00

Overspeed 01

Error 10

Not available 11

3 1 4 Driver 2 time related states A

Normal/no limits reached 0000

15 minutes before 4½h 0001

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Byte Bit Length Explanation State Resolution Limits Note

4½h reached 0010

15 minutes before 9h 0011

9h reached 0100

15 minutes before 16h 0101

16h reached 0110

1100 reserved 0111

Other 1101

Error 1110

Not available 1111

5 2 Driver card, driver 2 A

Driver card not present 00

Driver card present 01

Error 10

Not available 11

7..8 Not defined

4 1 2 System event

No system event 00

System event 01

Error 10

Not available 11

3 2 Handling information

No handling Information 00

Handling Information 01

Error 10

Not available 11

5 2 System performance

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Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

No system performance 00

System performance 01

Error 10

Not available 11

7 2 Direction indicator A

Forward 00

Reverse 01

Error 10

Not available 11

5 1 16 Tachograph output shaft speed 0.125 r/min per bit 0 to 8031.75 r/min

Error FExx

Not available FFxx

7 1 16 Tachograph vehicle speed 1/256 kph per bit 0 to 250.996 kph B

Error FExx

Not available FFxx

A: This parameter is not sent if the vehicle has an analogue tachograph.

B: This is the primary source of vehicle speed.

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Detailed description of CAN messages

Time/Date

Identifier: 18 FE E6 17

Transmission interval: 1,000 ms

Always sent from BWS.

Byte Bit Length Explanation State Resolution Limits Note

1 1 8 Seconds 0.25 s/bit 0 to 62.5 s

Error FEh

Not available FFh

2 1 8 Minutes 1 min/bit 0 to 250 min

Error FEh

Not available FFh

3 1 8 Hours 1 h/bit 0 to 250 h

Error FEh

Not available FFh

4 1 8 Month 1 month/bit 0 to 250 month

Error FEh

Not available FFh

5 1 8 Day 0.25 day/bit 0 to 62.5 day

Error FEh

Not available FFh

6 1 8 Year 1 year/bit 1 985 to 2 235 offset + 1985

years

Error FEh

Not available FFh

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Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

7 1 8 Local minute offset 1 min/bit -125 to 125 min offset -

125 min

Error FEh

Not available FFh

8 1 8 Local hour offset 1 h/bit -125 to 125 h offset -125 h

Error FEh

Not available FFh

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Detailed description of CAN messages

Vehicle Identification (VehicleId) - FMS

Identifier: 18 EC FF 25/18 EB FF 25

Transmission interval: 10,000 ms

The message is sent with BAM and TP.DT.

Parameter group numbers: FEEC (65260 decimal)

Byte Bit Length Explanation State Resolution Limits Note

1 1 8 Vehicle Identification (VehicleIdentification) 1 ASCII, length m

bytes

2 1 8 Delimiter (Delimiter) 1 ASCII, start at byte m

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Detailed description of CAN messages

Vehicle Weight

Identifier: 18 FE EA 25

Transmission interval: 1,000 ms

Byte Bit Length Explanation State Resolution Limits Note

1 1 8 Axle location bit-mapped

Error FE

Not available FF

2 1 16 Axle weight 0.5 kg/bit 0 to 32 127.5 kg

Error FExx

Not available FFxx

4 1 16 Trailer weight 2 kg/bit 0 to 128 510 kg

Error FExx

Not available FFxx

6 1 16 Cargo weight 2 kg/bit 0 to 128 510 kg

Error FExx

Not available FFxx

8 Not defined

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Detailed description of CAN messages

Wheel Brake Lining Remaining Information

Identifier: 1C FE AC 0B

Transmission interval: 5,000 ms

Byte Bit Length Explanation State Resolution Limits Note

1 1 8 Brake Lining Remaining, FrontAxleLeftWheel 0,4 0 - 100% A

Error FE

Not available FF

2 1 8 Brake Lining Remaining, FrontAxleRightWheel 0.4 0 - 100% A

Error FE

Not available FF

3 1 8 Brake Lining Remaining, RearAxle1LeftWheel 0.4 0 - 100% B

Error FE

Not available FF

4 1 8 Brake Lining Remaining, RearAxle1RightWheel 0.4 0 - 100% B

Error FE

Not available FF

5 1 8 Brake Lining Remaining, RearAxle2LeftWheel 0.4 0 - 100% C

Error FE

Not available FF

6 1 8 Brake Lining Remaining, RearAxle2RightWheel 0.4 0 - 100% C

Error FE

Not available FF

7 1 8 Brake Lining Remaining, RearAxle3LeftWheel 0.4 0 - 100% D

Error FE

Not available FF

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Note:

Detailed description of CAN messages

Byte Bit Length Explanation State Resolution Limits Note

8 1 8 Brake Lining Remaining, RearAxle3RightWheel 0.4 0 - 100% D

Error FE

Not available FF

A: The first axle of the vehicle.

B: The second axle of the vehicle.

C: The third axle of the vehicle.

D: The fourth axle of the vehicle.

The axles are counted from the front end of the vehicle.

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Source addresses

The source addresses contained in the table are used for messages sent from the internal CAN bus of the vehicle to the external CAN bus via the FMS control unit. These addresses must not be used by other control units on the external network. This can lead to conflicts and malfunctions in the external network. The table shows the addresses currently in use, but addresses may be added in the future.

Name Source address (Hex)

EMS 00

GMS 03

BMS 0B

RET 10

ICL 17

LAS 1D

VIS 1E

COO 27

BWS 2E

SMS 2F

APS 30

TCO EE

Source addresses

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