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EnGlisH
Serial remote control function
In the Serial remote control function, a host such as a computer is connected to the unit. By sending control commands from the host to the unit, the unit can be operated, and the status information of the unit can be
checked both on the unit and host. There are 2 methods for connecting the host and unit, namely RS-232C control and IP Control.
RS-232C control
You will be able to perform the three control functions from the
host by connecting an RS-232C straight cable to the RS-232C serial
terminal (9-pin D-sub) connector.
GThree control functionsH
q
Controlling and operating DN-700H from the host (vpage 41)
w
Sending the status information to the host when DN-700H
receives a status request command from the host
(vpage 41)
e
Automatically sending the status information to the host
when there is a change to the DN-700H status(vpage 41)
n Communication format
• Compatible Connector: 9-pin D-sub (male)
• Communication speed: 9,600 Bps
• Data Bit: 8 Bit
• Parity: None
• Stop Bit: 1 Bit
• Flow Control: None
Pin Arrangement
Pin Number
Signal Name
1
Ground
6
NC
2
TxD
7
NC
3
RxD
8
NC
4
NC
9
NC
5
S. Ground
n Connections
Host
RS-232C straight cable
40
IP Control (Ethernet)
You will be able to perform the three control functions from the host
by connecting an ethernet cable to the ethernet connector (Connector
type:RJ-45 (10BASE-T/100BASE-TX).
n Communication format:
• Communication system: A full duplex
• Communication speed: 10Mbps/100Mbps
• Communication port: TCP port 23 (telnet)
• Communication data length: 135bytes (maximum)
n Connections
q
Connecting the unit and host directly
Host
Ethernet
cross cable
w
Connecting the unit and host via a hub
Host
Hub
Ethernet
straight cable
straight cable
Communication protocol
The following three data forms are defined.
COMMAND
The message sent to a system from a host.
A command to a system is given from a host.
Refer to the following table for the contents of "Control command
code table" (vpage 42).
RESPONSE
The message is sent to a host from a system.
If the 'request command' (COMMAND+?+CR(0x0D)) has came from
a host.
The RESPONSE should be sent within 200ms of receiving the
COMMAND.
The form of RESPONSE presupposes that it is the same as that of
EVENT.
Refer to the following table for the contents of "Status request and
status information code table" (vpage 44).
EVENT
The message sent to a host from a system.
The result is sent, when a system is operated directly and a state
changes.
The form of EVENT presupposes that it is the same as that of
COMMAND.
Refer to the following table for the contents of "Event Status
Command table" (vpage 45).
n Basic specification
The command by ASCII CODE, parameter expression
NOTE
ASCII CODE which can be used is from 0x20 to 0x7F: the alphabet
and the number of 0-9, and space (0x20), some signs, AND carriage
return (0x0D) --- It is used only as a pause sign.
Ethernet
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