Panasonic PT-D3500E manual Using the serial terminals, Examples of connection, Basic format

Using the serial terminals

The main unit is equipped with SERIAL terminals located in its terminal section on the side, and this terminal is compliant with RS232C.

Examples of connection

<Terminal section on projector side>		PC
	D-Sub 9-pin (female)

D-Sub 9-pin (male)

Communication cable

Pin assignments and signal names

D-Sub 9-pin (female), external appearance

Serial input terminal

Pin No. Signal name	Description
	NC
TXD	Send data
RXD	Receive data
	Connected internally
GND	Ground
	NC
CTS	Connected internally
RTS
	NC

ENGLISH

Communication conditions (Factory setting)

Signal level	RS232C compliant
Synchronization method	Start-stop synchronization
Baud rate	9 600bps
Parity	None
Character length	8 bits
Stop bit	1 bit
X parameter	None
S parameter	None

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.

STX

A

D

I 1

I 2

;

C1

C2

C3

:

P1

P2

Pn

ETX

(2 bytes) Two

ID

characters

Semicolon

Colon

End

(2 bytes)

(1 byte)

(1 byte)

(1 byte)

Start

ZZ, 1

to 64

3 command

Parameter

(1 byte)

ID designate

characters (3 bytes)

(undefined length)

Attention • No command can be sent or received for 10 to 60 seconds after the lamp starts lighting. Try sending any command after that period has elapsed.

•When sending several commands, be sure to wait for a response from the projector before sending the next command. When sending commands without parameters, a colon (:) is not necessary.

Note • If a wrong command is received, the projector will send an “ER401” command to the computer.

•Projector ID supported on the RS232C interface is ZZ (ALL) and a group of 1 to 64.

•If a command is sent with a projector ID specified, the projector will return answer back only in the following cases:

If it coincides with the projector ID, or ID specification is ALL .

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