
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 | Byte Value | Byte Function | 
| Number | (hex) | 
 | 
| 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 | 
| HDV100A3 Command & Response  | 15 | 
B&B Electronics 
PH (815)