Bb-electronics Command Response Protocol HVD100A3 User Manual download pdf (Page 19)

HDV100A3 Command & Response Manual-1306cr 15

B&B Electronics -- 707 Dayton Rd. -- PO Box 1040 -- Ottawa, IL 61350

PH (815) 433-5100 -- FAX (815) 433-5104

After sending a transmit message to the HDV100A3 you will get

the confirmation message if the checksum is correct. A transmit complete

message is sent to the PC after the device successfully transmits the message

to the J1708 bus. A second message should not be sent to the device before

confirming that the first message has been sent. The transmit confirmation is

formatted as follows:

Byte

Number

Byte Value

(hex)

Byte Function

1 01 Start of frame

2 01 Number of control bytes

3 09 ID bytes 9 = transmit OK

8 00 Number of data bytes

9 0B Checksum

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 30 31

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Bb-electronics Command Response Protocol HVD100A3 User Manual Page 19