UMAX140610. LIN
– J1939 CAN Protocol Converter with PWM Output. Version 1
Page: 7-81
The converter application firmware can be updated the same way using EA in the field, see
2.3 LIN Interface
The LIN interface is compliant with the LIN Specification Package, Revision 2.2A, December
31, 2010. The following parts of this standard specification package were implemented:
Table 1. LIN Standard Implementation
ISO/OSI Network Model
Layer
LIN Specification Package Document
Physical
Physical Layer Specification.
Data Link
Protocol Specification.
Network
Not Implemented.
Transport
N/A in LIN.
Session
N/A in LIN.
Presentation
N/A in LIN.
Application
Application Program Interface Specification.
Master and Slave nodes are supported. The user can configure 75
signals, 25 unconditional frames, 1 event triggered and 1 sporadic
frame. One main schedule table and one collision schedule table are
also available for master nodes.
2.4 CAN Interface
The CAN interface is compliant with Bosch CAN protocol specification, Rev.2.0, Part B, and
the following J1939 standards:
Table 2. CAN Standard Implementation
ISO/OSI Network Model
Layer
J1939 Standard
Physical
J1939/11
– Physical Layer, 250K bit/s, Twisted Shielded Pair. Rev.
SEP 2006.
J1939/15 - Reduced Physical Layer, 250K bits/sec, Un-Shielded
Twisted Pair (UTP). Rev. AUG 2008.
J1939/14 - Physical Layer, 500 Kbps. Rev. OCT 2011.
J1939/16
– Automatic Baud Rate Detection Process. Rev. NOV 2018.
Data Link
J1939/21
– Data Link Layer. Rev. DEC 2006
The converter supports Transport Protocol for Commanded Address
messages (PGN 65240), ECU identification messages -ECUID (PGN
64965), and software identification messages -SOFT (PGN 65242). It
also supports responses on PGN Requests (PGN 59904).
Please note that the Proprietary A PGN (PGN 61184) is taken by
Axiomatic Simple Proprietary Protocol and is not available for the user.
Network
J1939, Appendix B
– Address and Identity Assignments. Rev. FEB
2010.
J1939/81
– Network Management. Rev. MAR2017.
The converter is an Arbitrary Address Capable ECU. It can dynamically
change its network address in real time to resolve an address conflict
with other ECUs.
The converter supports: Address Claimed Messages (PGN 60928),
Requests for Address Claimed Messages (PGN 59904) and
Commanded Address Messages (PGN 65240).
