Panasonic PT-D3500U User Manual download pdf (Page 39)

Using the serial terminals

Communication conditions (Factory setting)

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.

Start

(1 byte)

ID designate

3 command

characters (3 bytes)

Parameter

(undefined length)

End

(1 byte)

Two ID

characters

(2 bytes)

Semicolon

(1 byte)

Colon

(1 byte)

ZZ, 1 to 64

STX C1 C2 C3 : P1 P2 Pn ETXA D I 1 I 2 ;

(2 bytes)

Signal level

Synchronization method

Baud rate

Parity

Character length

Stop bit

X parameter

S parameter

RS232C compliant

Start-stop synchronization

9 600bps

None

8 bits

1 bit

None

Pin assignments and signal names

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

• 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.

Attention

• 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 .

Note

D-Sub 9-pin (female)

D-Sub 9-pin (male)

Communication cable

D-Sub 9-pin (female),

external appearance

Serial input terminal

Pin No.

Signal name

TXD

RXD

GND

CTS

RTS

Description

Send data

Receive data

Connected internally

Ground

Connected internally

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Panasonic PT-D3500U User Manual Page 39

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