Using The Serial Terminals; Examples Of Connection; Pin Assignments And Signal Names; Communication Conditions (Factory Setting) - Panasonic PT-D5500U Operating Instructions Manual

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. Also a serial output terminal is provided to enable plural projector control.

Examples of connection

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

Pin assignments and signal names

D-Sub 9-pin (female),
external appearance
Serial input terminal

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.
STX
Start
(1 byte)
• No command can be sent or received for 10 to 60 seconds after the lamp starts lighting. Try sending
Attention
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.
• If a wrong command is received, the projector will send an "ER401" command to the computer.
Note
• Projector ID supported on the RS232C interface is ZZ (ALL) and a group of 1 to 64 and 0A to 0Z.
• 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,
ID specification is ALL and VPS-SYSTEM is the master, or
ID specification is group and Group is the master.
38
PC
Communication cable
Pin No. Signal name Description
TXD Send data
RXD Receive data
Connected internally
GND
CTS
Connected internally
RTS
Signal level
Synchronization method
Baud rate
Parity
Character length
Stop bit
X parameter
S parameter
A D I 1 I 2
(2 bytes)
Two ID
characters
Semicolon
(2 bytes)
(1 byte)
ZZ, 1 to 64 and 0A to 0Z
ID designate
Plural projectors
<Terminal section on Projector 1> <Terminal section on Projector 2>
D-Sub 9-pin
(female)
PC
D-Sub 9-pin
(male)
Communication cable
D-Sub 9-pin (male),
NC
external appearance
Ground
NC
Serial output terminal
NC
RS232C compliant
Start-stop synchronization
; C1 C2 C3
Colon
(1 byte)
3 command
characters (3 bytes)
D-Sub 9-pin D-Sub 9-pin
(male) (female)
D-Sub 9-pin
D-Sub 9-pin
(female)
Communication cable
Pin No. Signal name
RXD
TXD
GND
RTS
CTS
9 600bps
None
8 bits
1 bit
None
None
: P1 P2 Pn
Parameter
(undefined length)
D-Sub 9-pin
(male)
(male)
Description
NC
Receive data
Send data
NC
Ground
NC
Connected internally
NC
ETX
End
(1 byte)