3M Digital Projector X64 Operatör El Kitabı - Sayfa 7
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3M™ Digital Projector X64
Command Control via the Network
1
2
3
4
5
6
8
7
9
CONTROL port
of the projector
Connecting the cable
Turn off the projector and the computer.
1.
Connect the CONTROL port of the projector with a RS-232C port of the
2.
shown in the previous page.
Turn the computer on, and after the computer has started up turn the
3.
projector on.
Communications setting
19200bps, 8N1
1. Protocol
Consist of header (7 bytes) + command data (6 bytes)
2. Header
BE + EF + 03 + 06 + 00 + CRC_low + CRC_high
3. Command data
Command data chart
byte_0
byte_1
Action
low
high
Action (byte_0 - 1)
Action
1
Set
2
Get
4
Increment
5
Decrement
6
Execute
RS-232C cable (cross)
- (1)
RD (2)
TD (3)
- (4)
GND (5)
- (6)
RTS (7)
CTS (8)
- (9)
byte_2
byte_3
Type
low
high
Change setting to desired value.
Read projector internal setup value.
Increment setup value by 1.
Decrement setup value by 1.
Run a command.
© 3M 2007. All Rights Reserved.
Command Control via the Network
(1) CD
(2) RD
(3) TD
(4) DTR
(5) GND
(6) DSR
(7) RTS
(8) DTS
(9) RI
byte_4
byte_5
Setting code
low
high
Content
1
2
3
4
5
6
8
7
9
RS-232C port
of the computer
7