SAE J 2178/2 : 2011

CLASS B DATA COMMUNICATION NETWORK MESSAGES - PART 2: DATA PARAMETER DEFINITIONS

SAE International

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1 Scope
   1.1 Standardized Parameter Definitions
2 References
   2.1 Applicable Publications
        2.1.1 SAE Publications
        2.1.2 Other Publications
3 Definitions
4 Abbreviations and Acronyms
5 General Information
   5.1 Part 2 Overview
   5.2 How to Use This Document
6 Parameter Reference Number (PRN) Structure
7 Parameter Formats
   7.1 Bit Mapped Parameters
        7.1.1 Bit Mapped Data Without Mask Byte(s)
        7.1.2 Bit Mapped Data With Mask Byte(s)
        7.1.3 Bit Values
   7.2 Byte (8 Bit) Parameters
   7.3 Word (16 Bit) Parameters
   7.4 Multi-Byte (16 Bit) Parameters
   7.5 Multiple Parameter Packets
8 Specific Parameter (PRN) Assignments
   8.1 Specific Parameters
9 Scaling, Limit, Offset and Transfer Function (SLOT)
   Definitions
   9.1 Multiple Parameter Packeted (PKT) SLOTs
        9.1.1 Multiple Parameter Packeted Assignments
   9.2 Bit Mapped Without Mask (BMP) SLOTs
        9.2.1 Bit Mapped Without Mask Parameter
               Assignments
   9.3 Bit Mapped With Mask Bytes (BMM) SLOTs
        9.3.1 Bit Mapped With Mask Parameter Assignments
   9.4 Unsigned Numeric (UNM) SLOTs
        9.4.1 Unsigned Numeric Variable Assignments
   9.5 2's Complement Signed Numeric (SNM) SLOTs
        9.5.1 2's Complement Signed Numeric Variable
               Assignments
   9.6 State Encoded (SED) SLOTs
        9.6.1 State Encoded Variable Assignments
   9.7 ASCII Encoded (ASC) SLOTs
        9.7.1 ASCII Encoded Variable Assignments
        9.7.2 ASCII Character Set
   9.8 Binary Coded Decimal (BCD) SLOTs
        9.8.1 Binary Coded Decimal (BCD) Variable
               Assignments
   9.9 Signed Floating Point (Scientific Notation) (SFP)
        SLOT
        9.9.1 Signed Floating Point Variable Assignment
10 Multiple Frame, Single Parameter Format
11 Manufacturer PRN Usage by SAE J2178 Part
Appendix A Parameter Name Cross Reference

Abstract

Gives information contained in the header and data fields of non-diagnostic messages for automotive serial communications based on SAE J1850 Class B networks. Defines the header fields, field sizes, scaling, representations and data positions used within messages.