PROTOCOL MANUAL

VPL-PX21

VPL-PX31

WORLD

WORLD

VERSION 1.0

LCD DATA PROJECTOR

COPYRIGHT NOTICE

Copyright © by Sony Corporation.

All rights reserved. The copyright on all matters described in this manual belongs to Sony Corporation, and the contents are intended for use by purchasers of subject equipment.

Furthermore, Sony Corporation reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of Sony

Corporation to notify any person or organization of such revision or changes.

VPL-PX21/PX31

Table of Contents

1. Introduction .......................................................................

1

2. Communication Specifications ........................................

2

<RS-232C Communication Signal> .......................................................................... 2

3. Command Block Format ...................................................

3

4. Data of Code ......................................................................

4

5. Connection ........................................................................

6

<RS-232C Connection> ............................................................................................ 6

6. Communication Procedure ..............................................

7

6-1.

Outline of Communication ............................................................................. 7

6-2.

Reading the Command Tables ....................................................................... 7

7. Communication Rules ......................................................

8

8. Approximate Return Waiting Times ................................

9

9. Commands .......................................................................

11

1

1. Introduction

This protocol manual describes the basic configuration and basic operations of various commands used for projector. Projector can be controlled using the commands in the List of Commands provided in

Section 9 “COMMANDS”. Using an external CONTROLLER , etc., inputs can be switched and the power can also be turned on and off. In the following paragraphs, “CONTROLLER” means an external device such as a PC which controls projector using these commands.

VPL-PX21/PX31

1

2. Communication Specifications

<RS-232C Communication Signal>

. Full duplex communication channels (Flow control not performed.)

. Start-stop synchronism system

. Baud rate: 38.4 kbps (bits per second)

. The bit configuration is defined as follows.

1 START Bit

+ 8 DATA Bits + 1 PARITY Bit + 1 STOP Bit

START

BIT

D0

(LSB)

D1 D2 D3 D4 D5 D6 D7

(MSB)

PARITY STOP

(EVEN) BIT

EVEN Parity.....Total number of “1”s from D0 to D7 is an even number.

2

VPL-PX21/PX31

3. Command Block Format

The code from B0 to B (n)

+ 2 as described below are transmitted.

1

B0

Start Code

B1

Peripheral Index

B4

Device Index

B5

B6

Peripheral Index

B11

Cmd1

5

B14

Data Length 1

(B16

+

2)

(02

_

81 h)

Check Data Length

Bn

Data (n)

B7

4

B12

Cmd2

COMMAND

3

B8

Group Index

Sender (From) Index

B13

Cmd3

6

B15

Data Length 2

(00 h)

8

Data (n

+

1, 2, 3, 4...)

Data

Bm

Bn = B16

+

1

Bm = B16

+

Total Data Length

B9

7

B16

Data Length 3

(00

_

7 Fh)

Total Data Length

B16

Data Length

Device Index

B10

9

Bm

+

1

Check SUM

B2

2

B3

Group Index

Receiver (To) Index

0

Bm

+

2

End Code

VPL-PX21/PX31

3

4. Data of Code

1

Start Condition

Bn

B0

NAME

Start Code

DATE

(hex)

A5

NOTE

Indicates the first packet

2

INDEX Header

/

*--

RECEIVER INDEX

B1

B2

B3

B4

B5

PERIPHERAL INDEX

GROUP INDEX UPPER BYTE

GROUP INDEX LOWER BYTE

DEVICE INDEX UPPER BYTE

DEVICE INDEX LOWER BYTE

--

*/

01

00

01

00

01

01: Projector

Group Index = 0001 hex

Device Index = 0001 hex

/

*--

B6

B7

B8

B9

B10

SENDER INDEX --

*/

PERIPHERAL INDEX

GROUP INDEX UPPER BYTE

GROUP INDEX LOWER BYTE

DEVICE INDEX UPPER BYTE

DEVICE INDEX LOWER BYTE

03

00

01

00

01 - 63

03: Controller

Group Index = 0001 hex

Device Index = 0001 - 0063 hex

/

*--

B11

B12

B13

Command

CMD1

CMD2

CMD3

--

*/

00

80

90

Refer to attached

Refer to attached

Projector All

LCD Projector All

VPL-PX21, VPL-PX31

Note: CMD1 and CMD2 are assigned with different commands for each unit. Consequently, there is no compatibility of commands between units. For details of the commands, refer to the respective list of commands for the units. Since there is no index function of this unit, the receiver INDEX will be ignored even if the command is designated.

3

Sub Data Size

B14 Data Length 1 02 - 81 (B16 + 2) hex Data Size

Note: Error when 82 to FF hex codes are included.

4

Data Size 2

B15 Data Length 2

Note: Error when 01 to FF hex codes are included.

4

VPL-PX21/PX31

5

Data Size 3

B16 Data Length 3 00 7F Size of

6

Note: Error when 80 to FF hex codes are included.

6

Data

Bn - Bm Data

Bn = B16

+ 1

Bm = B16

+ Total Data Length

7

Check SUM

Bm + 1 Check Sum

XX

XX

No Data in some cases

Check sum of Data from

2

to

6

(Calculate the XOR of the Data from

2

to

6

)

XOR is the exclusive OR.

It is as follows when calculated by 1 bit.

Taking A XOR B = C;

A B C

0

1

0

1

0

0

1

1

0

1

1

0

<Example of Calculation>

When 0XA5 (165) and 0XA5 (165) are calculated by XOR;

A5 10100101 (165)

A5 10100101 (165)

Answer 00000000 (0)

When 0XA5 (165) and 0X5A (90) are calculated by XOR;

Answer

A5

5A

10100101 (165)

01011010 (90)

Answer 11111111 (255)

8

End Condition

Bm + 2 END Code 5A Indicates the last packet

VPL-PX21/PX31

5

5. Connection

<RS-232C Connection>

Communication is enabled by the use of a D-Sub 9 Pin cross (reverse) cable.

The pin assignment of D-Sub 9 Pin and D-Sub 25 Pin is as follows.

D-Sub 9 Pin

Shell = FG

3

2

6

5

7

8

1

4

9

D-Sub 25 Pin

1

2

3

6

7

4

5

8

20

22

FG

TxD

RxD

RTS

CTS

DSR

SG

DCD

DTR

RI

Name

Grounding for safety protection or cable shield

Transmission data

Reception data

Transmission request

Transmission permission

Data set ready

GND for signal

Data channel signal carrier detection

Data terminal ready

Calling display (Presence/absence of calling signal)

Pins indicated as D-Sub 25 Pin are not used.

Assured cable length: 15 m (However, assurance may not be applicable for some cables.)

The software for controlling the projector from a PC is intended for performing transmission and reception for only the TxD and RxD lines.

Therefore there is no handshake normally performed by RS-232C.

6

VPL-PX21/PX31

6. Communication Procedure

6-1. Outline of Communication

All communication between CONTROLLER (PC, etc.) and DEVICE (PROJECTOR) is performed by the command block format. Communication is started by the issue of a command at CONTROLLER and ended when the return data is sent to CONTROLLER after DEVICE receives the command.

CONTROLLER is prohibited from sending several commands at one time. This means that after

CONTROLLER sends one command, it cannot send other commands until DEVICE returns the return data. DEVICE sends the return data after processing the command. The time from when CONTROLLER sends the command until the return data is returned differs according to the contents of the command.

In some cases, CONTROLLER may receive data from DEVICE even though it has not sent a command.

(For example, during SYS setting, SIRCS command, and switcher information when switcher is selected.)

Note: When Sircs Direct Command (CMD1 = 17 hex) is sent, return data may not be returned in some cases.

6-2. Reading the Command Tables

The command tables can be found in Section 9 (page 11).

CMD1 indicates the command category. The ACK from the projector is returned attached with the command category sent from the controller. However, when errors of the communication line occur, 10 hex (COMMON) will be returned.

CMD2 indicates the command processing method and processing results. 00 hex (SET) is set when setting data from the controller to the projector or when requesting for data processing. 01 hex (GET) is set when acquiring data. 2 hex (RETURN) is set when returning the ACK of the command received from the projector to the controller and when attaching data. 03 hex (ACK) is set when returning only the processing results.

However, F0 hex (COMM NAK) is set when the command the projector receives from the controller has a communication line error or checksum inconsistency.

The top of each category indicates the meaning of the data.

VPL-PX21/PX31

7

7. Communication Rules

. When sending a command from CONTROLLER, the return data (CMD1 = 10 hex or CMD1 = each category value, CMD2 = 03 hex) from PROJECTOR should be received first before sending the next command. Even if the next command is sent before receiving the return data, since PROJECTOR will not be able to receive that command, it does not return a response to CONTROLLER. Consequently, no error code is also sent.

The following lists the approximate waiting times for PROJECTOR to return the return data after

CONTROLLER sends the command.

. When a communication error occurs, PROJECTOR ignores the data received until now, and set into the reception standby state.

. For undefined commands or commends determined as invalid by PROJECTOR, PROJECTOR will send the “NAK” return data to CONTROLLER .

. Take note that when data is written when the input signal of PROJECTOR is unstable, that data (value) will not be incorporated.

. When INDEX specified SIRCS direct command (CMD1 = 17 hex) is transmitted, leave an interval of

45 mSec until the next transmission. (Do not return the return data (ACK, NAK) when the SIRCS direct command is received.)

8

VPL-PX21/PX31

8. Approximate Return Waiting Times

CMD1

00

00

01

01

01

03

03

CMD2

00

01

01

00

01

00

00

DATA1

_

_

00

00

00

00

01

DATA2

_

_

01, 02

05

05

_

_

TIME (mSec)

20

20

20

20

20

25

20

Note: The times shown in this table are when communication is performed in the condition that it will not be interrupted by some reason.

VPL-PX21/PX31

9

9. Commands

A command is mainly classified into the following four categories. For more details of the command that can be set and acquired in each category, refer to Tables 1 to 7.

1. Adjust Category

FUNCTION CMD1 CMD2 DATA1 DATA2 DATA3 DATA6 DATA7 DATA8

ADJUST SET 00h OPTION 02h

DATA4 DATA5

Refer to SETTING

VALUE in Table 1.

N/A

DATA9

ADJUST GET

Category

Value

01h

Refer to ADJ USER

NO in Table 1.

N/A

ADJUST REPLY

00h

02h VALID 00h

LOWER

Minimum setting value

UPPER

Maximum setting value

Refer to SETTING

VALUE in Table 1.

ADJUST ACK/NAK 03h ACK/NAK DATA N/A

Table 1

FUNCTION

INPUT

CONTRAST

BRIGHTNESS

COLOR

HUE

SHARPNESS

RGBENHANCER

VOLUME

COLTEMP

ASPECT

SCANCONV

PICTURE MUTING

AUDIO MUTING

INPUT A

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

GAIN RED

GAIN GREEN

GAIN BLUE

BIAS RED

BIAS GREEN

BIAS BLUE

VPL-PX21/PX31

ADJ USER NO

DATA1 DATA2

00h

01h

00h

00h

00h

00h

00h

00h

21h

30h

31h

32h

10h

11h

12h

13h

14h

15h

16h

17h

20h

80h

81h

82h

83h

84h

85h

DATA4

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

00h

01h

00h

00h

01h

02h

03h

00h - FFh

00h - FFh

00h - FFh

00h - FFh

00h - FFh

00h - FFh

00h - 64h

00h - 64h

00h

01h

01h

00h

01h

00h

01h

00h

01h

02h

03h

00h - 64h

00h - 64h

00h - 64h

00h - 64h

00h - 64h

SETTING VALUE

DATA5 MEANING OF DATA

VIDEO

S-VIDEO

INPUT A

INPUT B

CURRENT SETTING VALUE (0 - 100)

CURRENT SETTING VALUE (0 - 100)

CURRENT SETTING VALUE (0 - 100)

CURRENT SETTING VALUE (0 - 100)

CURRENT SETTING VALUE (0 - 100)

CURRENT SETTING VALUE (0 - 100)

CURRENT SETTING VALUE (0 - 100)

LOW

HIGH

NORMAL 4:3

WIDE 16:9

ON

OFF

ON

OFF

ON

OFF

COMPUTER

COMPONENT

DTV-YPBPR

DTV-GBR

CURRENT SETTING VALUE (0 - 255)

CURRENT SETTING VALUE (0 - 255)

CURRENT SETTING VALUE (0 - 255)

CURRENT SETTING VALUE (0 - 255)

CURRENT SETTING VALUE (0 - 255)

CURRENT SETTING VALUE (0 - 255)

OPERATING STATUS

SET GET STANBY

START

SEQUENCE

11 11

POWER STATUS

SAVING

COOLING2

SAVING

STANBY

2. Du Category

FUNCTION

DU SET

DU GET

DU REPLY

DU ACK/NAK

CMD1

Category

Value

01h

Table 2

FUNCTION

DU USER NO

DATA1 DATA2

CMD2

00h

01h

02h

03h

DATA1 DATA2

Refer to DU USER NO in Table 2.

DATA3

Refer to SIZE in Table 2.

Refer to SIZE in Table 2.

Refer to SIZE in Table 2.

ACK/NAK DATA

DATA4 DATA5 DATA6

Refer to SETTING VALUE in Table 2.

DATA7

N/A

N/A

DATA

ERROR STATUS 00h

POWER STATUS 00h

CONTROL MODE

SELECT

TOTAL LAMP

TIMER

00h

00h

01h

02h

05h

13h

SIZE

DATA3

01h

01h

01h

DATA4

04h

05h

06h

07h

40h

00h

01h

02h

03h

00h

01h

02h

04h

08h

10h

20h

08h

00h

01h

DATA5

02h

0000h - FFFFh

N/A

SETTING VALUE/RETURN VALUE

DATA6 DATA7 MEANING OF DATA

N/A

N/A

N/A

NO ERROR

LAMP ERROR

FAN ERROR

COVER ERROR

TEMP ERROR

D5V ERROR

POWER ERROR

WARNING ERROR

STANBY

START UP

STARTUP LAMP

POWER ON

COOLING1

COOLING2

SAVING COOLING1

SAVING COOLING2

SAVING STANBY

USER

SERVICE

TOTAL LAMP TIMER

OPERATING STATUS

SET GET

POWER STATUS

STANBY

START

SEQUENCE

POWER ONCOOLING1COOLING2 SAVING

COOLING1

SAVING

COOLING2

SAVING

STANBY

12 12

VPL-PX21/PX31

3. SIRCS Category

FUNCTION

SIRCS

CMD1

Category

Value 17h

Table 3

REPEAT

00h

01h

CMD2

00h

DATA1 DATA2

Refer to Table 4.

DATA3

Refer to Tables

5 and 6.

DATA4

REPEAT

REPEAT

OPERATING STATUS

Equivalent to the SircsCode transmitted in single-shot (Single pressing of a remote control)

Equivalent to the SircsCode occurred continuously (Continuous pressing of a remote control)

Continuous pressing is considered to be performed the number of <REPEAT NUMBER> times.

DATA5 DATA6

REPEAT NUMBER

Table 4

BIT

15BIT

20BIT

CATEGORY

DATA1

40h

85h

DATA2

54h

5Ah

VPL-PX21/PX31

13 13

Table 5

List of SIRCS CODE

(1) 15BIT Category

x0

6x

7x

4x

5x

2x

3x

0x

1x x1 x2 x3 x4

HUE

+

PURPLISH

HUE

_

GREENISH

VOLUME

+

UP

SHARPNESS

+

SHARP

VOLUME

_

DOWN

SHARPNESS

_

SOFT

CURSOR

→

AUDIO

MUTING

PICTURE

MUTING

CURSOR

←

ADJ R ADJ G ADJ B

W/B GAIN W/B BIAS

x5 x6

POWER

ON/OF

STATUS

ON

CURSOR

↑

STATUS

OFF

CURSOR

↓

x7 x8

CONTRAST

+

HIGH

CONTRAST

_

LOW

MENU

COLOR

+

HIGH

VIDEO

RGB SIZE RGB SHIFT

INPUT SELECT BLANKING

x9 xA xB

COLOR

_

LOW

INPUT A

xF

BRITNESS

+

BRIGHT

BRITNESS

_

DARK

POWER ON POWER OFF

ENTER MEMORY

RESET

xC

INPUT B

xD xE

PATTERN

Table 6

(2) 20BIT Category

x0

6x

7x

4x

5x

2x

3x

0x

1x

APA

x1

DOT PHASE

x2 x3 x4 x5 x6

HELP

x7 x8 x9 xA xB

FUNCTION1 FUNCTION2 DIGITAL

ZOOM

+

DIGITAL

ZOOM

_

xC xD xE xF

14 14

VPL-PX21/PX31

4. Memory Category

FUNCTION

MEMORY SET

CMD1

Category

Value

03h

Table 7

FUNCTION

MEMORY

DATA1

RESET

00h

SAVE

01h

CMD2

00h

DATA1 DATA2

Refer to SETTING Refer to SETTING

VALUE in Table 7.

VALUE in Table 7.

SETTING VALUE

DATA2

MEANING OF DATA

01h

02h

03h

04h

05h

06h

Channel Memory

Status Memory

Set Memory

W/B ALL

W/B LOW

W/B HIGH

OPERATING STATUS

SET GET

POWER STATUS

STANBY

START

SEQUENCE

POWER ONCOOLING1COOLING2 SAVING

COOLING1

SAVING

COOLING2

SAVING

STANBY

<ACK>

ACK

FUNCTION CMD1

EACH

CATEGORY

VALUE

CMD2

ACK 03h

COMMON

10h

DATA1

ACK/NAK

DATA2

DATA

00 ACK

01 NAK

COMM NAK

F0h

COMM ERROR

10 CHECK SUM ERROR

20 FRAMING ERROR

30 PARITY ERROR

40 OVER RUN ERROR

50 OTHER COMM ERROR

00 DUMMY

01 UNDEFINED

COMMAND

04 SIZE ERROR

05 SELECT ERROR

06 RANGE OVER

0A NOT APPLICABLE

VPL-PX21/PX31

15 15

Examples of command transmission

(1) Command of "POWER ON" Sircs

<Transmitting command>

Receiver (To) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

01h 00h 01h 00h 01h

Sender (From) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

03h 00h 01h 00h 01h

CMD1 CMD2 CMD3

CATEGORY SET

17h 00h 80h

CHECK DATA

08h

DATA LENGTH

00h 06h

DATA1 DATA2 DATA3 DATA4 DATA5 DATA6

PJ SIRCS CODE SIRCS CODE REPEAT REPEAT NUMBER

40h 54h 2Eh 00h 00h 00h

CHECK SUM

A1h

END CODE

5Ah

(2) Command to set "INPUT A" to "COMPUTER"

<Transmitting command>

Receiver (To) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

01h 00h 01h 00h 01h

Sender (From) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

03h 00h 01h 00h 01h

CMD1 CMD2 CMD3

CATEGORY SET

00h 00h 80h

CHECK DATA

07h

DATA LENGTH

00h 05h

DATA1 DATA2 DATA3 DATA4 DATA5

ADJ USER NO OPTION DATA

00h 32h 02h 00h 00h

CHECK SUM

B0h

END CODE

5Ah

16 16

VPL-PX21/PX31

<Receiving command: ACK>

Receiver (To) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

03h 00h 01h 00h 01h

Sender (From) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

01h 00h 01h 00h 01h

CMD1 CMD2 CMD3

CATEGORY ACK/NAK

00h 03h 80h

CHECK DATA

04h

DATA1 DATA2

ACK DUMMY

00h 00h

DATA LENGTH

00h 02h

CHECK SUM

87h

END CODE

5Ah

(3) Signals acceptable to "INPUT A"

<Transmitting command>

Receiver (To) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

01h 00h 01h 00h 01h

Sender (From) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

03h 00h 01h 00h 01h

CMD1 CMD2 CMD3

CATEGORY GET

00h 01h 80h

CHECK DATA

04h

DATA1 DATA2

ADJ USER NO

00h 32h

DATA LENGTH

00h 02h

CHECK SUM

B7h

END CODE

5Ah

VPL-PX21/PX31

17 17

<Receiving command: ADJUST REPLY >

Receiver (To) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

03h 00h 01h 00h 01h

Sender (From) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

01h 00h 01h 00h 01h

CMD1 CMD2 CMD3

CATEGORY REPLY

00h 02h 80h

CHECK DATA

0Bh

DATA LENGTH

00h 09h

DATA1 DATA2 DATA3 DATA4 DATA5 DATA6 DATA7 DATA8 DATA9

ADJ USER NO FIXED LOWER UPPER DATA

00h 32h 00h 00h 00h 00h 03h 00h 00h

CHECK SUM

B3h

END CODE

5Ah

18 18

VPL-PX21/PX31

(4) Command to get "CURRENT ERROR"

<Transmitting command>

Receiver (To) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

01h 00h 01h 00h 01h

Sender (From) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

03h 00h 01h 00h 01h

CMD1 CMD2 CMD3

CATEGORY GET

01h 01h 80h

CHECK DATA

05h

DATA LENGTH

00h 03h

DATA1 DATA2 DATA3

DU USER NO DATA SIZE

00h 01h 01h

CHECK SUM

84h

END CODE

5Ah

<Receiving command: DU REPLY >

Receiver (To) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

03h 00h 01h 00h 01h

Sender (From) INDEX

PERIPHERAL INDEX GROUP INDEX DEVICE INDEX

01h 00h 01h 00h 01h

CMD1 CMD2 CMD3

CATEGORY REPLY

01h 02h 80h

CHECK DATA

06h

DATA LENGTH

00h 04h

DATA1 DATA2 DATA3 DATA4

DU USER NO DATA SIZE DATA

00h 01h 01h 00h

CHECK SUM

83h

END CODE

5Ah

VPL-PX21/PX31

19 19

9-929-690-61

Sony Corporation

Communication System Solutions Network Company

English

00JY22-1

Printed in Japan

©2000.10