Hitachi CP-X995W RS-232C communication, Communications setting, Protocol, Header, Command data

Page 31

TECHNICAL (continued)

RS-232C communication

(1)Turn off the projector and computer power supplies and connect with the RS-232C cable.

(2)Turn on the computer power supply and, after the computer has started up, turn on the projector power supply.

 

 

 

 

 

Projector

Computer

RS-232C jack

Control jack

1

1

CD

D-sub 9-pin

2

2

RD

 

 

 

 

D-sub 15-pin shrink jack

 

 

 

 

3

3

TD

1

2

3 4

5

15

14

13

12

11

4

4

DTR

 

 

 

 

8

8

CTS

6

7

8

9

 

10

9

8

76

5

5

GND

 

SELO 6

6

DSR

 

 

 

 

 

 

 

 

 

RTS 7

7

RTS

 

 

 

 

 

 

 

 

 

9

9

RI

 

 

 

 

 

 

 

 

 

GND 10

 

 

 

 

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

 

 

 

 

12

 

 

 

 

 

 

 

 

 

 

 

RD 13

 

 

 

 

 

 

 

 

 

 

 

TD 14

 

 

 

 

 

 

 

 

 

 

 

15

 

 

 

 

 

 

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 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

 

 

 

 

 

 

 

 

 

Action

 

Type

Setting code

low

 

high

low

 

high

low

 

high

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Action (byte_0 - 1)

Action

Classification

 

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.

 

 

 

 

TECHNICAL - 6

Image 31
Contents CP-X990W / CP-X995W Contents Contents of package FeaturesBefore USE Part Names Before USEENGLISH-4 Loading the Batteries Installation Reference InstallationInstallation of the Projector and Screen Angle AdjustmentCabling InstallationCabling Example of System Setup Power ConnectionPlug & Play Standby Power onPower OFF OperationsBasic Operation OperationsBasic Operation Description Menu Display Start/Stop Press the Menu button Select Mode of P.IN P. Display Press the PinP buttonSet / Clear Keystone Mode Press the Keystone button Normal menu Single menuSetup Menu Setup MenuBlack Input MenuInput Menu Description RGBMirror Image MenuImage Menu Description MyScreenOperation Start/Stop Press Options MenuOptions Menu Select Menu Background Color Select withNo Signal Menu No Signal MenuLamp MaintenanceLamp Life Resetting the Lamp Timer MaintenanceReplacing the Lamp Air Filters Other MaintenanceOSD Message TroubleshootingMessage Contents OSD MessageIndicator TroubleshootingIndicators Message Indicators MessageSymptom SymptomSymptom Possible cause Remedy Specifications SpecificationsWarranty and AFTER-SERVICE Signal Connector Pin Assignment Dimension DiagramTechnical Technical Example of computer signalInitial set signals PS/2 Mouse Connection to the Mouse ControlPS/2, ADB or Serial Mouse USB MouseSerial Mouse ADB MouseProtocol Communications settingCommand data RS-232C communicationIncreasing the projector setting value Increment command Requesting projector status Get commandChanging the projector settings Set command Using the projector default settings Reset CommandCRC Be EF BA D2 Be EF FD D3 Be EF Ntsc PAL RGB Be EF FCC Statement Warning Regulatory NoticesFor the Customers in Canada Pour les utilisateurs au Canada Hitachi France Hitachi Europe GmbHHitachi Sales Europe GmbH Hitachi Business Systems Nordic
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