7 Layer 2 Communication Mode (11/29 bit ID)
7.2 [BFM #1100 to #1267] Pre-defined Layer 2 Messages Parameter
64
FX
3U
-J1939 User's Manual
7.2
[BFM #1100 to #1267] Pre-defined Layer 2 Messages Parameter
This section describes the Pre-defined Layer 2 messages configuration.
The Layer 2 message parameter defines if the corresponding Layer 2 message in BFM #100 to #393 is a
transmit or receive message, e.g. Layer 2 message parameter 2 (BFM #1104 to #1107) determines the
function of Layer 2 message 2 (BFM #107 to #113).
Note
• The Pre-defined Layer 2 messages configuration can be set in offline mode (set BFM #25 bit 4 OFF and
wait for BFM #25 bit 0 OFF).
For the communication status (BFM #25), refer to Section 5.7
• If an invalid value is written to one of BFM #1100 to #1267, then BFM #29 bit 6 is set, and the BFM address
is displayed in BFM #39.
• Set parameter A and B of unused Layer 2 messages to HFFFF.
BFM No.
Name
Description
Default Value
Read/Write
BFM #1100
Layer 2 message 1 parameter A
Layer 2 message 1 parameter
HFFFF
R/W
BFM #1101
Layer 2 message 1 parameter B
HFFFF
R/W
BFM #1102
Layer 2 message 1 parameter C
H0000
R/W
BFM #1103
Layer 2 message 1 parameter D
H0000
R/W
BFM #1104
Layer 2 message 2 parameter A
Layer 2 message 2 parameter
HFFFF
R/W
BFM #1105
Layer 2 message 2 parameter B
HFFFF
R/W
BFM #1106
Layer 2 message 2 parameter C
H0000
R/W
BFM #1107
Layer 2 message 2 parameter D
H0000
R/W
..…
..…
..…
..…
..…
BFM #1260
Layer 2 message 41 parameter A
Layer 2 message 41 parameter
HFFFF
R/W
BFM #1261
Layer 2 message 41 parameter B
HFFFF
R/W
BFM #1262
Layer 2 message 41 parameter C
H0000
R/W
BFM #1263
Layer 2 message 41 parameter D
H0000
R/W
BFM #1264
Layer 2 message 42 parameter A
Layer 2 message 42 parameter
HFFFF
R/W
BFM #1265
Layer 2 message 42 parameter B
HFFFF
R/W
BFM #1266
Layer 2 message 42 parameter C
H0000
R/W
BFM #1267
Layer 2 message 42 parameter D
H0000
R/W
