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LAN/RS-232 Command Reference
The unit support two types of remote-interface communication: LAN and RS-232.
Using the LAN port or RS-232 connector to send specific commands to the unit from a controlling device lets you operate the unit remotely.
LAN Interface
This uses the LAN port on the unit.
You use Telnet to operate the unit remotely over a LAN (TCP/IP
protocol).
Communication standards
Port
LAN port (supports 100BASE-TX)
TCP port number
8023
For methods of connecting to a network, refer to "Network
Connections" (p. 14).
RS-232 Interface
RS-232 connector pin layout
1
2
3
4
5
6
7
8
9
DB-9 type (male)
Communication standards
Communication method
Synchronous (asynchronous), full-duplex
Communication speed
9,600/38,400 bps
Parity
none
Data length
8 bits
Stop bit
1 bit
Code set
ASCII
Cable wiring diagram
Use an RS-232 crossover cable to connect the unit and the controller
(an RS-232-compatible computer or other device).
This unit
N.C.: 1
RXD: 2
TXD: 3
DTR: 4
GND: 5
DSR: 6
RTS: 7
CTS: 8
N.C.: 9
(Crossover connection)
* The connections between 4 and 6 and between 7 and 8 are inside
the unit.
Pin assignments
Pin No.
Signal
1
N.C.
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
N.C.
Control device
1:
2: RXD
3: TXD
4:
5: GND
6:
7:
8:
9:
Command Format
Commands are common to the LAN and the RS-232 interface.
Transmitted commands (control device 0 this unit)
Transmit specific commands from the control device to this unit.
Command Format
Obtains the model name and version information.
ver
ver
lf
Sets a parameter.
set
set
,
Category
Obtains the current parameter value.
get
,
Category
get
When this unit correctly receives a command, it returns
set,[category],[ID],[sub-ID],[value][lf ].
* "lf" is the ASCII code "0aH, " and is a control code that indicates the
end of the command. H indicates a hexadecimal value.
ack response (this unit 0 control device)
When this unit correctly receives a command, it returns ack.
The ack response commands are described in "List of Commands"
(p. 26).
Error response (this unit 0 control device)
When this unit could not correctly receive a command, it returns an
error.
err
, Transmitted command
,
ID
, Sub-ID , Value
lf
,
ID
, Sub-ID
lf
lf
25
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