ISO 16844-4:2015
Road vehicles — Tachograph systems — Part 4: CAN interface
ISO 16844-4:2015 specifies the controller area network (CAN) interface for the interchange of digital information between a road vehicle's tachograph system and vehicle units, and within the tachograph system itself. It specifies parameters of, and requirements for, the application of physical and data link layers of the electrical connection used in the electronic systems.
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Foreword
Introduction
1 Scope
2 Normative reference
3 Terms and definitions
4 Symbols and abbreviated terms
5 Physical layer application requirements
5.1 General
5.2 Bit timing requirements
5.2.1 General
5.2.2 CAN bit timing requirements for 250 kbit/s
5.2.3 CAN bit timing requirements for 500 kbit/s
6 Data link layer application requirements
6.1 Message frame format
6.1.1 General
6.1.2 Priority (P) bits
6.1.3 Extended data page (EDP) bit
6.1.4 Data page (DP) bit
6.1.5 PDU format (PF) field
6.1.6 PDU specific (PS) field
6.1.7 Source address (SA) field
6.1.8 Data field
6.2 PDU specification
6.2.1 Parameter group number (PGN)
6.2.2 PDU format
6.3 Message types
6.3.1 General
6.3.2 RQST — Request
6.3.3 ACKM — Acknowledgment message
7 Transport protocol
7.1 General
7.2 BAM — Broadcast announce message
7.3 TP.DT — Transport protocol — Data transfer
8 Application layer
8.1 General
8.2 TD — Time/Date
8.3 VI — Vehicle identification
8.4 VDHR — High resolution vehicle distance
8.5 SERV — Service information
8.6 RESET — Reset
8.7 TCO1 — Tachograph
8.8 DI — Driver’s identification
8.9 TDA — Time/Date adjust
8.10 EEC1 — Electronic engine controller 1
8.11 CL — Cab illumination message
8.12 DRTD1 — Driver 1 driving rest times
8.13 DRTD2 — Driver 2 driving rest times
9 Addresses
Bibliography
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Foreword
Introduction
1 Scope
2 Normative reference
3 Terms and definitions
4 Symbols and abbreviated terms
5 Physical layer application requirements
5.1 General
5.2 Bit timing requirements
5.2.1 General
5.2.2 CAN bit timing requirements for 250 kbit/s
5.2.3 CAN bit timing requirements for 500 kbit/s
6 Data link layer application requirements
6.1 Message frame format
6.1.1 General
6.1.2 Priority (P) bits
6.1.3 Extended data page (EDP) bit
6.1.4 Data page (DP) bit
6.1.5 PDU format (PF) field
6.1.6 PDU specific (PS) field
6.1.7 Source address (SA) field
6.1.8 Data field
6.2 PDU specification
6.2.1 Parameter group number (PGN)
6.2.2 PDU format
6.3 Message types
6.3.1 General
6.3.2 RQST — Request
6.3.3 ACKM — Acknowledgment message
7 Transport protocol
7.1 General
7.2 BAM — Broadcast announce message
7.3 TP.DT — Transport protocol — Data transfer
8 Application layer
8.1 General
8.2 TD — Time/Date
8.3 VI — Vehicle identification
8.4 VDHR — High resolution vehicle distance
8.5 SERV — Service information
8.6 RESET — Reset
8.7 TCO1 — Tachograph
8.8 DI — Driver’s identification
8.9 TDA — Time/Date adjust
8.10 EEC1 — Electronic engine controller 1
8.11 CL — Cab illumination message
8.12 DRTD1 — Driver 1 driving rest times
8.13 DRTD2 — Driver 2 driving rest times
9 Addresses
Bibliography