Interface - Pioneer PDP-501MX Technical Manual

RS-232C Adjustment Mode

5.5.2 Interface

1) Connector
D-sub 9 pins
2) Pin Assignment
PIN NO. Symbol
2
3
8
5
3) Baud Rate
4800 bps (switchable to 1200, 2400, 9600, 19200 bps)
NOTE: Set the unit baud rate to match that of the PC in use. With long RS-232C cables, we recommend using
lower baud rates.
4) Data Format
Start: 1-bit
Data: 8-bit
Parity: 0 (no parity)
Stop: 1-bit
5) Connection
COMPUTER (PC-98)
RXD 3
TXD 2
CTS 5
GND 7
* D-sub 9Pin-D-sub 25Pin conversion cables are now available on the market.
6) Protocol
From Computer to Plasma display
(1) When transmitting commands individually
STX ID | COMMAND
(2) When transmitting commands in batches
STX ID | COMMAND
3 When transmitting direct numeric commands
STX ID | COMMAND
(Note after the STX a 2 byte ID must be sent. "**" can be used as a wildcard ID.)
Transmit PON and POF commands one by one. (Allow an
interval of three or more seconds between commands.)
Transmit an input switching command (IN 1-4) and <AJY>
command, allowing sufficient time between them. (Allow
an interval of approximately three or more seconds
between input switching commands (IN 1-4).)
104 PLEASE NOTE. SOME OF THE EXAMPLES HERE DO NOT CORECTLY USE THE ID FUNCTION.
Signal NAME
TXD Transmitted Data
RXD Recieved Data
CTS Clear To Send
GND Signal Ground
PLASMA DISPLAY
2 TXD
3 RXD
8 CTS
5 GND
ETX
COMMAND
ARGUMENT
COMPUTER (IBM PC)
RXD 2
TXD 3
CTS 8
GND 5
STX=02h ETX=03h
COMMAND ETX
ETX ARGUMENT: 3-Byte(ASCII)
Error Example 1)
Error Example 2)
Error Example 3)
PLASMA DISPLAY
2 TXD
3 RXD
8 CTS
5 GND
Straight Cable*
COMMAND 3-Byte(ASCII)
Up to three commands can be
issued simultaneously.
STX PON AJY CNT
STX POF PON ETX
STX IN2 AJY CNT
Note)
ETx
ETX