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1939STB4600 Manual 15
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
Message Information
The message information controls the action of the message. It also
contains the header information that will be sent out on the J1939 bus. The
bytes that control the message and are not transmitted to the bus are grayed
in. Byte 5 and 6 are the message control bytes. They work together to control
the message. The bit fields are set up in a two bit configuration as follows:
NOTE: Byte 11 covered on page 18.
The bit values shown in gray are the only values valid for the setup
of the 1939STB.
Table 22. 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
Table 23. Two Bit Values for Byte 5 and 6
Value of 2 bit field Function on write Function on read
0 0 Reserved Reserved
0 1 Reset element Element is reset
1 0 Set element Element is set
1 1 No change Reserved