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1939STB4600 Manual 27
B&B Electronics Mfg Co Inc – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91 792444 – Fax +353 91 792445
Byte 11
Table 33. J1939 Message Control
Message Information
B
5
B
6
B
7
B
8
B
9
B
10
B
11
95 E7 0C 80 00 40 8C
Byte 11
Byte 11 is not sent to the J1939 bus and is coded as follows:
Table 34. Byte 11
DLC DIR XTD
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
DLC Data Length Code
Number of bytes 0 to 8 in the data payload.
DIR Message Direction
DIR = 1 transmit. The loaded message is transmitted.
DIR = 0 receive. A remote frame with a matching identifier.
The message is stored in this message location.
XTD Extended Identifier XTD = 1 Extended frame
This bit should always be set to one.
XTD = 0 Standard frame
J1939 does not support standard frames.
Table 32. J1939 Message Information
Message Information
B
5
B
6
B
7
B
8
B
9
B
10
B
11
95 E7 0C 80 00 40 8C