Sony FWD-42PV1 - Manual (Page 4)

(3)Enquiry answer (Command cancel)
№
1
2
3
0x03: Command Canceled The packet was received normally,but the command was cancelled because the
function was not in adjustable mode, such as "--" a function displayed as in user
menu.
* Check Sum: The total from №1 to №2, when value exceeds 255, 1byte of data is confirmed the bottom.
(4)Error answer
№
1
2
3
* 0x00: No Function Error Packet header,category of function codes do not exist in this protocol.
0x01: Check Sum Error The "Check Sum" value of the packet which received is wrong.
0x02: Data Length Error The "Data Num" value of the packet which received is wrong.
Check Sum 0xXX
0x02: Data Length Error
Answer* 0x00: No Function Error
0x01: Check Sum Error
Item Value
Header 0xE0: Answer
Answer 0x03: Command Canceled
Check Sum 0xXX
Item Value
Header 0x70: Answer