SAEJ1939

student6404

CAN通信协议的标准SAEJ1939

szl1987

下来瞧瞧  希望有用

qducoiexp

Issued 2000-04
Revised 2003-08


SAE J1939 Revised AUG2003
1. Scope........................................................................................................................... 3
1.1 Degree of Openness.....................................................................................................3
1.2 Proof of Compliance.....................................................................................................3
2. References.....................................................................................................................3
2.1 Publications...................................................................................................................3
2.2 Definitions and Abbreviations.....................................................................................4
2.2.1 Definitions .....................................................................................................................4
2.2.2 Abbreviations................................................................................................................7
2.3 References to the OSI Model:......................................................................................7
2.4 Documentation Structure and Guide..........................................................................9
3. Technical Requirements
10
3.1 J1939 Tutorial
10
3.1.1 Introduction
10
3.1.2 Message Format and Usage (J1939/21 for 29 Bit Identifier) ...................................10
3.1.3 Addresses and NAME (J1939/81 and Appendix B)..................................................12
3.1.4 Communication Methods ..........................................................................................13
3.1.5 Transmitting Messages (Using J1939/21 and J1939/7X) ........................................14
3.1.6 Receiving Messages (Using J1939/21 and J1939/7X)..............................................14
3.1.7 ECU Design (Using J1939/11, J1939/21, and J1939/7X) 14
3.1.8 Network Topology ----- J1939/01 Using Physical Layer J1939/11
and Network Layer J1939/31 .....................................................................................15
3.2 Preassigned Values ....................................................................................................15
3.2.1 Parameter Group Numbers .......................................................................................15
3.2.2 Data Field Grouping ...................................................................................................16
3.2.3 NAME Systems and Functions..................................................................................16
3.2.4 Industry Group............................................................................................................17
3.2.5 Manufacturer Code.....................................................................................................17
3.2.6 Preferred Address 18
3.2.7 Suspect Parameter Number (SPN)............................................................................18
3.3 Application Examples.................................................................................................18
Appendix A Parameter Group Assignments
B Address and Identity Assignments
C Fault Reporting Parameters
D Assignment Request Forms