ViewSonic PJL3211 VS12417, Руководство пользователя

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ViewSonic PJL32
RS-232C Communication
RS-232C Communication
6 7 8 9
2 3 5
6 7 8 9
2 3 5
CONTROL port RS-232C cable (Cross) RS-232C port
of the projector of the PC
- () () CD
RD (2) (2) RD
TD (3) (3) TD
- () () DTR
GND (5) (5) GND
- (6) (6) DSR
RTS (7) (7) RTS
CTS (8) (8) DTS
- (9) (9) RI
Connecting the cable
.
Turn off the projector and the PC.
2.
Connect the CONTROL port of the projector with a RS-232C port of the PC
by a RS-232C cable (cross). Use the cable that fulfills the specification shown
n the prevous page.
3.
Turn the PC on, and after the PC has started up turn the projector on.
Communications setting
19200bps, 8N1
1. Protocol
Consist of header (7 bytes) + command data (6 bytes).
2. Header
BE + EF + 03 + 06 + 00 + C CRC_high
CRC_low : Lower byte of CRC flag for command data
CRC_high : Upper byte of CRC flag for command data
3. Command data
Command data chart
byte_0 byte_1 byte_2 byte_3 byte_4 byte_5
Acton Type Setting code
low hgh low hgh low hgh
Action (byte_0 - 1)
Acton Classification Content
SET Change settng to desred value.
2 GET Read projector nternal setup value.
INCREMENT Increment setup value by 1.
5 DECREMENT Decrement setup value by 1.
6 EXECUTE Run a command.