J1939 Communication; Overview Of J1939 Communication Over Can - IDEC FC6A-C16K1CE Communications Manual

8: J1939 C
This chapter describes J1939 communication in the CAN J1939 All-in-One Type.
The following abbreviations are used in the text to simplify the descriptions.
Abbreviation
CAN
ECU
NIECU
CA
PDU
PGN
SA
DA
SAE
SPN

Overview of J1939 Communication over CAN

The CAN J1939 All-in-One Type is compatible with CAN communication based on SAE J1939. The CAN J1939 All-in-One Type can
communicate with other J1939 communication-compatible devices by connecting the CAN port to a J1939 communication
network. For details on J1939 communication, refer to the SAE J1939 standard.
SAE J1939 Overview
J1939 Communication Network
A J1939 communication network is composed of ECUs (engine, brake, etc.) and NIECUs (repeaters, routers, etc.), and each ECU
has one or more CAs. A CA is assigned an address between 0 and 253 and a unique 64-bit ID (NAME), and messages can be
exchanged between CAs using the addresses.
Terminator
ECU
CA CA
Terminator
OMMUNICATION
Controller Area Network
Electronic Controller Unit
Network Interconnection ECU
Controller Application
Protocol Data Unit
Parameter Group Number
Source Address
Destination Address
Society of Automotive Engineers
Suspect Parameter Number
CAN
ECU
CA
ECU ECU
CA CA
FC6A S M S A
ERIES ICRO MART
Official Name
Bridge
Terminator Terminator
NIECU
CA
Terminator
- -O T C
LL IN NE YPE OMMUNICATION
Bridge
CAN
ECU ECU
CA
M FC9Y-B1730
ANUAL
Terminator
CA
8-1