SAE J1939 CAN FD Functional Safety Assurance Data
STANDARD published on 1.11.2025
Designation standards: SAE J1939-77
Publication date standards: 1.11.2025
Country: American technical standard
Category: Technical standards SAE
This document describes the functional safety (FuSa) assurance data to be included when communicating safety-related A_PDUs using either the Multi-PG service or the FD Transport service within an SAE J1939-22 protocol stack. It specifies the following:
The parameters that make up the FuSa assurance information
The behavioral requirements when producing and consuming FuSa assurance information
The technical requirements for different FuSa profiles intended to meet different application requirements
The trailer formats for the different FuSa profiles that can be incorporated into Multi-PG and FD Transport services
This document does not specify the assignment of a FuSa profile to any values of the TOS and TF fields when using the Multi-PG service, or to any value of the AD TYPE field when using the FD Transport service; instead, SAE J1939-22, or an OEM in the manufacturer-specific ranges of these fields, specifies the assignments for these fields.
SUBFILE: Commercial Vehicle
TYPE OF DOCUMENT: Ground Vehicle Standard