Sony BKM-FW50 Service Manual page 33

Response from BKM-FW50 to command
Enquiry answer (In case of abnormality)
No. Item Value
1 Header 0x70
2 Answer 0x03
3 CheckSum* 0x73
* Checksum: If the value of a sum total of 1 to 2 exceeds 255 (1 byte), the
data of 1 lower byte is effective.
Error answer (In case of abnormality)
No. Item Remarks
1 Header 0xE0: Answer
2 Answer*1 0x00: No Function Error
0x01: Check Sum Error
0x02: Data Length Error
3 CheckSum*2 0xXX
*1 0x00: No Function Error A packet header, category, or function code is
not contained in this protocol.
0x01: Check Sum Error The checksum value of the received packet is
incorrect.
0x02: Data Length Error The data size of the received packet is
incorrect.
*2 Checksum: If the value of a sum total of 1 to 2 exceeds
255 (1 byte), the data of 1 lower byte is
effective.
Enquiry answer (In case of normality)
No. Item Value
1 Header 0x70
2 Answer 0x00
3 Length 0x03
4 Data1 0x20
5 Data2 0xXX
6 CheckSum* 0xXX
* Checksum: If the value of a sum total of 1 to 5 exceeds 255 (1 byte), the
data of 1 lower byte is effective.
BKM-FW50
Remarks
The answer of an FWD series
protocol is used.
0x03: Command Canceled
Checksum for detection of
data destruction
Remarks
The answer of an FWD series
protocol is used.
0x00: Command Completed
Data size
Fixed
Command type (Refer to the
normal command list and data
command list.)
Checksum for detection of
data destruction
Data replay
No. Item Value
1 Header 0x70
2 Answer 0x00
3 Length 0xXX
4 Data1 0x10
5 Data2 0xXX
6 Data3 0xXX
: : :
X Data(X_4) 0xXX
X+1 CheckSum* 0xXX
* Checksum: If the value of a sum total of 1 to X exceeds 255 (1 byte), the
data of 1 lower byte is effective.
Notification of data termination
No. Item Value
1 Header 0x70
2 Answer 0x00
3 Length 0x03
4 Data1 0x20
5 Data2 0xXX
6 CheckSum* 0xXX
* Checksum: If the value of a sum total of 1 to 5 exceeds 255 (1 byte), the
data of 1 lower byte is effective.
Data transmission to BKM-FW50
Control
No. Item Value
1 Header 0x8C
2 Category 0xDX
3 Function 0xXX
4 Length 0xXX
5 Data1 0xXX
6 Data2 0xXX
: : 0xXX
X Data(X_4) 0xXX
X+1 CheckSum* 0xXX
* Checksum: If the value of a sum total of 1 to X exceeds 255 (1 byte), the
data of 1 lower byte is effective.
Remarks
The answer of an FWD series
protocol is used.
0x00: Command Completed
Data size
Fixed
Data number
First data
:
X_6th data value
Checksum for detection of
data destruction
Remarks
The answer of an FWD series
protocol is used.
0x00: Command Completed
Data size (Fixed)
Fixed
Command type (Refer to the
normal command list and data
command list.)
Checksum for detection of
data destruction
Remarks
The control of an LX1 protocol
is used.
Command type 1
(Refer to the category list.)
Command type 2
Data size
0xff (maximum)
(Size of No. 5 to No. X + 1)
Data number (from 0)
First data value
:
X_5th data value
Checksum for detection of
data destruction
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