Communication Parameters; Pin Assignment; Communication Data Format - Sony FWD-50PX3 Protocol Manual

1. Communication Parameters

Communication method
Synchronous method
Baud rate
Character length
Parity
Start bit length
Stop bit length
Flow control

2. Pin Assignment

Monitor side (D-sub 9-pin)
5 4 3 2 1
9 8 7 6
_ External view _
Pin No. Function
1 NC
2 TXD
3 RXD
4 NC
5 GND
6 NC
7 NC
8 NC
9 NC
FWD-50PX3
RS-232C
Asynchronous
9600bps
8bit
None
1bit
1bit
None
Host side (D-sub 9-pin)
5 4 3 2 1
9 8 7 6
_ External view _
Pin No. Function
1 NC
2 RXD
3 TXD
4 NC
5 GND
6 NC
7 NC
8 NC
9 NC

3. Communication Data Format

(a) Control message
No. Item
1 Header
2 Category
3 Function
4 Data1 (Length)
5 Data2 (Data1)
: :
: :
X DataX
X+1 Check Sum
* Check Sum: Sum total of 1 to X. Lower one-byte data is validated when a
value exceeds 255 (1byte).
* 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 message
No. Item
1 Header
2 Category
3 Function
4 Data1
5 Data2
6 Check Sum
* Check Sum: Sum total of 1 to X. Lower one-byte data is validated when a
value exceeds 255 (1byte).
Value
0x8C: Control
0xXX
0xXX
0xXX
0xXX
0xXX
0xXX
0xXX
0xXX
Value
0x83: Enquiry
0xXX
0xXX
0xFF
0xFF
0xXX
1