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Connecting to a personal computer (continued)
RS-232C terminal
RS-232C cable
Please use the following RS-232C Crossover cable to connect your personal computer to the Unit.
Setting the communicating mode
The settings can be made on RS-232C SETTING of the <REAR TERMINAL> menu. Set the Unit and the modem or a personal
computer with same settings. Please refer to the diagram for possible setting rate.
Please note that the RS-232C interface (located on the back of the unit) does not function while the unit is in commu-
nication mode.
Command code and status
Operation and setting of this unit by a personal computer is executed by command codes and error codes.
1) Command : an order from a personal computer to the unit
Parameter 1
Command code
2) Command : a reply from the unit ( indicated on a personal computer)
Status
Parameter 1
Example of Command operation
Example 1) Turn the Unit on.( when DELIMITER is set to "CR" on the RS-232C setting menu)
Command from
personal computer
PW1
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Connecting to a personal computer
Command code
1
5
Pin NO. Letters
2
RS-232C
RXD
3
TXD
4
DTR
5
GND
6 9
1) When RS-232C terminal of personal
computer is D-SUB 25 pin
FRAME
RXD
2
TXD
3
DTR
4
GND
5
DSR
6
RTS
7
CTS
8
D-SUB 9 pin (unit)
D-SUB 25 pin(Personal computer)
Synchronization
Name on Menu
1
Transmission rate at
TRANSMISSION
the data received/
RATE
sent
2
Data bit length
DATA BIT LENGTH
3
Parity bit setting
PARITY BIT
4
Stop bit length
STOP BIT
5
Line feed setting
DELIMITER
Parameter 2
,
,
• • • • • • • • • •
Parameter n
,
Parameter 2
,
,
• • • • • • • • • •
Parameter n
,
(receiving) #2
Replied status code from uint
to a personal computer
CR
RC
CR
EX
CR
Transmition Contents
Pin NO.
6
Receiving Data
Transmission Data
7
Data Terminal Ready
8
Signal Ground
2) When Pesonal cpmputers RS-232C
terminal is D-SUB 9 pin
FRAME
1
FG
RXD
2
2
TXD
TXD
3
3
RXD
DTR
4
4
RTS
GND
5
5
CTS
DSR
6
6
DSR
RTS
7
7
GND
CTS
8
20
DTR
D-SUB 9 pin
Asynchronous
# Set other functions on the personal
1200/2400/4800/
computer as shown below.
9600
8 BIT/7 BIT
Synchronization
1
NONE/ODD/EVEN
X control
1 BIT/2 BIT
2
S parameter
CR/CR•LF
3
CS-RS hamd-shake
• • • • • • • • • •
#1: If you set the DELIMITER setting to "CR" on the RS-232C setting menu,
input a Carrige return code (0DH).
If you set the DELIMITER setting to "CR • LF" on the RS-232C setting menu,
input a carrige return code (0DH) and a line
Delimeter
(sending) #1
#2: If you set the DELIMITER setting to "CR" on the RS-232C setting menu,
output a Carrige return code (0DH).
If you set the DELIMITER setting to "CR • LF" on the RS-232C setting menu,
output a carrige return code (0DH) and a line
Make sure to send commands in an interval of 0.1 second.
• • • • • • • • • •
Delimeter
Sending a command to turn the Unit on.
The unit received a command.
The unit received a command and executed.
/ Command codes
Transmition Contents
Letters
DSR
Data Set Ready
RTS
Transmission
Requirement
CTS
Transmission Clear
FRAME
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
D-SUB 9 pin
Name on Menu
Not available
Not available
Available
code (0AH).
****
code (0AH).
****
Meaning
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