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5 Allocation of Buffer Memories
5.18 [BFM #100 to #399] Send/Receive Data Buffer
43
FX
3U
-J1939 User's Manual
1
Introduc
tion
2
Specifi
cations
3
Inst
allati
on
4
Wi
rin
g
5
Al
lo
ca
tion of
Buf
fer
Memor
ies
6
J1939 C
omms
Mode
7
La
ye
r 2
C
omm
uni
cation
M
ode
8
PL
C RUN>
S
TOP
Me
ssag
es
9
Co
mmand
Interface
10
Comm
uni
cation
Setti
ngs
Proc
edure
Manufacturer Code
The manufacturer code identifies the maker of the ECU. The manufacturer code is assigned by the SAE and
listed in the SAE J1939 main specification.
Identity Number
The Identity number is a unique code that distinguishes ECUs of the same Manufacturer and Kind (Industry
Group, Vehicle System, Vehicle System Instance, Function, Function Instance, ECU instance and
Manufacturer Code).
5.18
[BFM #100 to #399] Send/Receive Data Buffer
BFM #100 to #399 in the FX
3U
-J1939 module are used for data communication to the CAN bus.
The configuration for where each data is sent/received is explained in the following chapter.
When using the J1939 communication mode, refer to Chapter 6
When using Layer 2 communication (11 bit/29 bit ID) mode, refer to Chapter 7
5.19
[BFM #401 to #479] Message Specific Error Code List
This List contains an error message for each message. FX
3U
-J1939 has 42 messages for Layer 2 mode and
79 messages for J1939 mode. If several message buffers are combined for messages with more than 8 data
bytes in J1939 mode, the error code is stored only in the first related message.
e.g. If message 3, 4 and 5 are combined to transport a message with 24 byte, any errors will be displayed in
BFM #403 "message 3 error code."
Note
• Write K0 to clear the error for related message. If all message error codes are cleared to K0, the error flag
BFM #29 bit 15 will be reset to OFF.
For the error status, refer to Section 12.2
• All error codes in BFM #401 to #479 will be cleared to K0 if BFM #29 bit 15 is set to OFF, or if BFM #25 bit
0 is set to ON for the module reset.
• The abort cause of PGN 60416 "connection abort" is set to HFE (K254) "error indicator" according to ISO
11783-7 in case the FX
3U
-J1939 detects any protocol errors, e.g. in case the total data count does not
match the number of frames in a RTS frame.
*1.
Messages 76 to 79 are for extended messages 1 to 4.
For the extended message, refer to Subsection 6.1.2
BFM No.
Detailed Error Code for Each Message
J1939 Mode
Layer 2 Mode
BFM #401
Message 1 error code
BFM #402
Message 2 error code
....
...
BFM #442
Message 42 error code
BFM #443
Message 43 error code
Not used
...
.
...
.
BFM #474
Message 74 error code
BFM #475
Message 75 error code
BFM #476
Message 76 error code
*1
BFM #477
Message 77 error code
*1
BFM #478
Message 78 error code
*1
BFM #479
Message 79 error code
*1