Dukane 8914 参考指南

6

RS-232C Communication

RS-232C Communication

66 777 88 999

1

2 33

44 5

  

66 777 88 999

1

2 3

44 5

CONTROL port 

RS-232C cable (Cross) 

RS-232C port

  of the projector 

 

of the computer

- (1) 

(1) CD

 

RD (2) 

(2) RD

 

TD (3) 

(3) TD

 

- (4) 

(4) DTR

 

GND (5) 

(5) GND

 

- (6) 

(6) DSR

 

RTS (7) 

(7) RTS

 

CTS (8) 

(8) DTS

 

- (9) 

(9) RI

Connecting the cable

1. 

Turn off the projector and the computer.

2. 

Connect  the  CONTROL  port  of  the  projector  with  a  RS-232C  port  of 

the computer by a RS-232C cable (cross). Use the cable that fulfills the 

specifi cation shown in the previous page.

3. 

Turn the computer on, and after the computer 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 + CRC_low + CRC_high

CRC_low : Lower byte of CRC fl ag for command data

CRC_high : Upper byte of CRC fl ag for command data
3. Command data

Command data chart

byte_0

byte_1

byte_2

byte_3

byte_4

byte_5

Action

Type

Setting code

low

high

low

high

low

high

Action (byte_0 - 1)

Action

Classifi cation

Content

1

SET

Change setting to desired value.

2

GET

Read projector internal setup value.

4

INCREMENT

Increment setup value by 1.

5

DECREMENT Decrement setup value by 1.

6

EXECUTE

Run a command.

 

RD (2) 

(2) RD

 

TD (3) 

(3) TD

 

RD (2) 

(2) RD

 

TD (3) 

(3) TD

 

RD (2) 

(2) RD

 

GND (5) 

(5) GND

 

RTS (7) 

(7) RTS

 

CTS (8) 

(8) DTS

 

RTS (7) 

(7) RTS

 

CTS (8) 

(8) DTS

 

RTS (7) 

(7) RTS

8914