Sony FWD-42PX2 - Manual (Page 5)

1
FWD-42PX2
1. Communication Parameter
Communication system RS-232C
Synchronous system Asynchronous communication
Baud rate 9600 bps
Character length 8 bit
Parity None
Start bit 1 bit
Stop bit 1 bit
Flow control None
2. Pin Configuration
1 2 3 4 5
Display side (D-sub 9-pin)
_ External view _
6 7 8 9
1 2 3 4 5
6 7 8 9
Host side (D-sub 9-pin)
_ External view _
FWD-42PX2 Personal computer
Pin No. Signal
1 NC
2 TD
3 RD
4 NC
5 GND
6 NC
7 NC
8 NC
9 NC
Pin No. Signal
1 NC
2 RD
3 TD
4 NC
5 GND
6 NC
7 NC
8 NC
9 NC
3. Communication Data Format
(a) Control (Host
→
Request of Write to Display)
No. Item Value
1 Header 0x8C:Control
2 Category 0xXX
3 Function 0xXX
4 Data1 (Length) 0xXX
5 Data2 (Data1) 0xXX
: : 0xXX
: : 0xXX
X DataX 0xXX
X + 1 Check Sum 0xXX
* Check Sum: The total from No. 1 to No. X, when value exceeds 255,1byte
of data is confirmed the bottom.
* Set the command interval to 500 ms or more when transmitting the
Control command continuously.
* Set the command interval to 500 ms or more when transmitting the same
command (Enquiry) after the Control command.
(b) Enquiry (Host
→
Request of Read to Display)
No. Item Value
1 Header 0x83:Enquiry
2 Category 0xXX
3 Function 0xXX
4 Data1 0xFF
5 Data2 0xFF
6 Check Sum 0xXX
* Check Sum: The total from No.1 to No.5, when value exceeds 255, 1byte
of data is confirmed the bottom.