- Overview
- 1. Introduction
- 2. General Description of the Protocol
- 3. Document Structure
-
4. Fundamentals
- 4.1. Names and Addresses
- Device Names
- Device Address
- 4.2. Parameter Group
- General
- Structure and Type of a Parameter Group
- Example of a Global Parameter Group
- Parameter Groups reserved specially for the Protocol
- 4.3. Data Management
- Suspect Parameter Number (SPN)
- SLOT Definition
-
5. Network Management
- Network Access
- 5.1. Address Conflict
- Solution and Configurations
- Handling in a Dynamic Network
- 6. Transport Protocols (Multi-packet Messages)
- 7. Diagnostics
Example of a Specific Parameter Group
A specific PGN is listed below. This is the typical representation of parameter groups in the J1939 standard.
The Specific PGN:
PGN 54528 | Time/Date Adjust | TDA
| Transmission Rate: | as needed |
| Date Length: | 8 |
| Data Page: | 0 |
| Extended Data Page: | 0 |
| PDU Format: | 213 |
| PDU Specific: | DA |
| PGN Supporting Information: | See Appendix D PGN 65254 |
| Default Priority: | 6 |
| Parameter Group Number: | 54528 (0x00D500) |
| Start Position | Length | Parameter Name | SPN |
|---|---|---|---|
| 1 | 1 byte | Adjust seconds | 1603 |
| 2 | 1 byte | Adjust minutes | 1604 |
| 3 | 1 byte | Adjust hours | 1605 |
| 4 | 1 byte | Adjust month | 1606 |
| 5 | 1 byte | Adjust day | 1607 |
| 6 | 1 byte | Adjust year | 1608 |
| 7 | 1 byte | Adjust local minute offset | 1609 |
| 8 | 1 byte | Adjust local hour offset | 1610 |
Note that all parameter groups defined in the J1939-71 document up to now have been transferred to an electronic table (J1939-DA).
Last modified: Tuesday, 17 April 2018, 8:47 AM