Hitachi CP-WX1100 Technical Manual page 14

Daisy Chain Communication
Daisy Chain Communication Daisy Chain Communication
Transmitting side
1 2 3 4 5
6
7 8 9
CONTROL OUT port
in Projector
1.Communications setting
Set the same communication settings (selecting from options below) on the
CONTROL terminal for transmitting and receiving side connected with a RS-232C
cable.
Baud rate: 4800 / 9600 / 19200 / 38400 bps
Parity NONE / ODD / EVEN
Data bit: 8 bit (fi xed)
Start bit: 1 bit (fi xed)
Stop bit: 1 bit (fi xed)
2.Commans available only for daisy chain
communication
The projector supports the following commands only for daisy chain.
(1) Control the projector (Set/Increment/Decrement/Execute)
(2) Get the projector's status (Get)
(3) Get the number of connected projectors
(4) Set the communication Group identifi cation and Communication ID.
(5) Get the communication Group identifi cation and Communication ID.
3.Command format
Protocol
Consist of header data (7 bytes) + command data (6 bytes)
Header
BE + EF + Packet_Type + 06 + Group + ID + Checksum
Data chart
Support Command
Control the projector
Get the projector's status
Get the number of connected projectors
Set the communication Group
identifi cation and Communication ID
Get the communication Group
identifi cation and Communication ID
14
RS-232C cable (Cross)
- (1)
RD (2)
TD (3)
- (4)
GND (5)
- (6)
RTS (7)
CTS (8)
- (9)
Packet_Type
(1) CD
(2) RD
(3) TD
(4) DTR
(5) GND
(6) DSR
(7) RTS
(8) DTS
(9) RI
Group
'83H' 0~16
'83H' 1~16
'84H'
'85H' 1~16
'86H'
Recieving side
1 2 3 4 5
6
7 8 9
CONTROL IN
port in Projector
ID
0~64
1~64
0 0
1~64
0 0