Purpose Of The Document; Conventions; Reference Documents; Definitions And Abbreviations - Danfoss PVED-CL Technical Information

Technical Information
Introduction

Purpose of the document

Conventions

Reference documents

Definitions and abbreviations

PVED-CL Communication Protocol, version 1.38 Technical Information
This document has been created in order to present the communication protocol implemented in PVED-
CL – a controller in the Electro-hydraulic Power Steering system. The document describes the CAN
messages which enables the PVED-CL and relevant sensor to be connected to a J1939 network.
•
As suggested in J1939 protocol documentation, the little-endian layout applies to all multi-byte
numerical values, any exception requires an explicit note.
•
Unless otherwise mentioned, all signed numerical values are encoded in two's complement format.
The CAN Data field byte numbers start from 1.
Refering to literature:
Reference Title/author
[PVED] Controller for Electro-Hydraulic Steering PVED, User Manual, 11079550.
[J1939] SAE J1939 Top Level
[J1939-21] SAE J1939 Data Link Layer
[J1939-71] SAE J1939 Application Layer
[J1939-73] SAE J1939 Diagnostic Layer
[J1939-81] SAE J1939 Network Management
Definitions and abbreviations
Term Description
DTC Diagnostic Trouble Code
EHPS Electro-Hydraulic Power Steering
MMI Man-Machine Interface
XID Extended Message Identifier
PVED-CL Proportional Valve Digital – Closed Loop – here the valve controller
SPN Suspect Parameter Number
11079551 • Rev BA • July 2014 5