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FX
-J1939 User's Manual
3U
5.20
[BFM #1280 to #1284] Manual Transmit Trigger flags
The transmission of a message in J1939 or Layer 2 mode can be triggered via the following flags.
Transmit requests on receive messages are discarded. When a bit is set to ON, the corresponding transmit
message will be sent as soon as a transmit buffer is available. The flags are reset automatically as soon as
the message is written into the transmit queue. In case of messages larger than 8 bytes, which need several
transmissions, the flag is reset when the last segment is written into a transmit queue.
For J1939, messages 1 to 75 are standard 8 bytes messages (BFM #100 to #399), and messages 76 to 79
are extended messages with up to 250 bytes (BFM #1300 to #1799).
BFM No.
Bit No.
Bit 0
BFM #1280
Bit 15
Bit 0
BFM #1281
Bit 15
Bit 0
Bit 9
BFM #1282
Bit 10
Bit 15
Bit 0
BFM #1283
Bit 15
Bit 0
Bit 10
Bit 11
BFM #1284
Bit 12
Bit 13
Bit 14
Bit 15
*1.
Messages 76 to 79 are extended messages
5.21
[BFM #1900 to #1927] PLC RUN>STOP Messages
If required to inform other nodes about the events "PLC RUN>STOP" of the local node, this function can be
used to define up to 4 messages to be transmitted on occurrence of each of the two events.
For setup in J1939 communication mode, the CIF provides the "set up PLC RUN>STOP messages" function.
Note
In J1939 mode, the PLC RUN>STOP messages and the CAN-ID are adjusted according to J1939 Specification:
• The lowest byte of the CAN-ID will always equal the FX
• If the PGN is in PDU1 format range (PF = HEF or less), the destination address is adjusted if the target
node changes its node address during dynamic address allocation.
Transmit Request Message
J1939 Communication Mode
Message 43
Message 48
Message 49
Message 64
Message 65
Message 75
*1
Message 76
*1
Message 77
*1
Message 78
*1
Message 79
Not used
For details on the PLC RUN>STOP Messages, refer to Chapter 8
For the setup in J1939 communication mode by CIF, refer to Section 9.5
For the required node address and ECU name definition, refer to Section 5.22
5.20 [BFM #1280 to #1284] Manual Transmit Trigger flags
Layer 2 Communication (11/29 bit ID)
Mode
Message 1
Message 16
Message 17
Message 32
Message 33
Message 42
Not used
-J1939 current node address (BFM #28)
3U
5 Allocation of Buffer Memories
Remarks
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
-
Refer to Subsection 6.1.2
45
1
2
3
4
5
6
7
8
9
10
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