Serial connector, Communication conditions (factory setting), Basic format – Panasonic DLP PT-D5700 User Manual

Page 11: Projectors

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PT-D5700/D5700L

DLP

Projectors

As of January 2009

< 11 >

Serial connector

The serial connector complies with RS-232C. To control the projector from a personal computer, com-
mands must be input through communication software, based on the format and satisfying the commu-
nication conditions shown below.

Basic format

Transmission from the computer begins with STX, then the ID, command, parameter, and ETX are sent
in this order. Add parameters according to the details of control.

Communication conditions (factory setting)

Pin assignments and signal names

D-sub 9-pin (female)

Serial input

Description

NC

Send data

Receive data

Connected internally

Ground

Signal name

TXD

RXD

GND

No.

1

2

3

4

5

Description

NC

Connected internally

Connected internally

NC

Signal name

CTS

RTS

No.

6

7

8

9

Pin assignments and signal names

D-sub 9-pin (male)

Serial output

Description

NC

Receive data

Send data

Connected internally

Ground

Signal name

RXD

TXD

GND

No.

1

2

3

4

5

Description

NC

Connected internally

Connected internally

NC

Signal name

RTS

CTS

No.

6

7

8

9

CAUTIION
• It may not be possible to send or receive commands for about 10 to 60 seconds when the lamp is first turned on. If this

occurs, wait for 60 seconds, then try sending or receiving again.

• When sending multiple commands, be sure to wait for at least 0.5 second after receiving a response from the projector before

sending the next command.

• Additional time is sometimes required for response due to processing inside the projector. Set the time-out period for com-

mand response to 10 seconds or more.

Start
(1 byte)

End
(1 byte)

Colon
(1 byte)

Semicolon
(1 byte)

ID designator:

01 to 64: Address number
0A to 0Z: Group ID
ZZ: All units (ID ALL)

ID 2 characters

(2 bytes)

Parameters
(undefined length)

Command
(3 bytes)
(Control and/or query commands)

STX

ETX

C1

P1 P2 ... Pn

C2

A

D

I1 I2

C3

:

;

Signal level

Synchronization method

Baud rate

Parity

Character length

Stop bit

X parameter

S parameter

RS-232C-compliant

Start-stop synchronization

9,600 bps

None

8 bits

1 bit

None

None

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