Panasonic PT-VW540 Operating Instructions Manual page 123

Pin assignments and signal names
D-Sub 9-pin (female)
Outside view
Communication conditions (Factory default)
Signal level
Sync. method
Baud rate
Parity
Character length
Stop bit
X parameter
S parameter
Basic format
Transmission from the computer starts 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
(2 bytes)
Start (1 byte)
Basic format (with sub command)
STX A D
S1 S2
Sub command (5 bytes)
*1 When transmitting a command which does not need a parameter, the operation (E) and parameter are not necessary.
Chapter 7 Appendix - Technical information
Pin No.
RS-232C-compliant
Asynchronous
9 600 bps
None
8 bits
1 bit
None
None
ID designate
ZZ, 01 to 06
I1 I2 ; C1
3 command characters (3 bytes)
Semi-colon(1 byte)
2 ID characters (2 bytes)
I1 I2 ;
S3 S4 S5
Operation (1 byte)*
"=" (Set to the value specified by the parameter)
Signal name
—
TXD
RXD
—
GND
—
CTS
RTS
—
C2 C3 : P1
Colon(1 byte)
Parameter (undefined length) End (1 byte)
Same as the basic format
C1 C2 C3 :
E P1 P2 P3
Parameter (6 bytes)*
1
Symbol "+" or " - " (1 byte) and set value
or adjustment value (5 bytes)
1
Contents
NC
Transmitted data
Received data
NC
Earth
NC
Connected internally
NC
P2 Pn ETX
ETX
P4 P5 P6
ENGLISH - 123