Products

J1939 SA

In SAE J1939, the acronym SA stands for Source Address and represents the address of a controller application. A source address is 8-bits wide and is included in every J1939 message. Also, every J1939 controller application (i.e. ECU), has a unique SA.

J1939 requires every CA to have a unique source address (SA) to guarentee that all CAN identifiers are unique. This is a requirement of the CAN Bosch specification and is required for correct CAN functionality. J1939-81 specifies an address claim procedure which details what steps should be taken if more than one controller application (CA) has the same source address (SA).

J1939 SA Example

0: Engine #1
1: Engine #2
3: Transmission #1
4: Transmission #2
5: Shift Console – Primary
… : …
254: Null
255: Global – All CAs

Talk to us

Please contact us if you are interested in our products. 

Experience Summary

1000

Global
Customers

500

Protocol
Stacks

300

CAN
Device Drivers

75

Flash
Bootloaders

60

Microcontrollers
& DSPs

10

Real Time Operating Systems

Our Customers

Customer Logos

Our Partners

TI Partner Logo Infineon Partner Logo Microchip Partner Logo ST Partner Logo NXP Partner Logo
0
    0
    Your Cart
    Your cart is emptyReturn to Store