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11 SERIAL REMOTE
The serial remote terminal on the DN-V750/V755's rear panel can be used to connect the terminal software of a computer, etc., allowing
a wide variety of control possibilities through serial remote control. The terminal is compatible with RS-232C standards.
Hardware specifications
Standards
Connector type
D-sub female 9 pins
Data length
8 bits
09,600 bps
Bit rate
38,400 bps (native mode)
04,800 bps (LD compatible mode)
Flow control
None
Synchronization
Asynchronous synchronization
Stop bit
1 bit
Parity
None
NOTES:
• Use a serial straight through cable for connection to a
computer.
• Be sure to turn the power of both the DN-V750/V755 and the
control device off when connecting the serial cable. Failure
to do so could damage the DN-V750/V755 or the control
device.
• Do not use signals other than TXD and RXD signals (DTR, for
example). If reception control of such signals is being
performed on the control device, take the necessary
software or hardware measures on the control device.
Software specifications
These operating instructions only include a general description of the serial remote commands.
For details of the individual commands, consult your store of purchase.
2 Basic procedure for transmitting and receiving commands
Basic protocol of this interface: The device with which serial communications are possible (referred to as "the controller" below) issues
commands and the DN-V750/V755 returns messages indicating that the commands have been executed.
When using a computer, serial communications are possible using Hyper Terminal included as standard with Windows
2 Command format
ASCII character codes are used for actual commands and messages. Commands are expressed with two characters. There is no
distinction between capital and small letters, but the two must not be combined.
The <CR><LF> code (0DH,0AH) is affixed to the end of commands in the native mode. The <CR> code (0DH) is affixed to the end of
commands in the LD compatible mode. The DN-V750/V755 recognizes that the command is complete through this code.
Some commands may include parameters (arguments), but as commands also serve to terminate parameters, be sure to place
parameters before the command and do not include spaces, etc.
The maximum length of commands including arguments is 49 characters in the native mode, 32 characters in the LD compatible mode.
Example : Native mode
20SE<CR><LF>
LD compatible mode
100SE<CR>
Conforming to RS-232C
:
Search for 20th clip
In this case, 20 is the parameter, SE is the command.
:
When the search mode is set to "Frame", search for 100th frame.
RS-232C
Pin no.
Signal name
1
--
2
TXD
3
RXD
4
--
5
GND
6
--
7
--
8
--
9
--
ENGLISH
Input/Output
--
Output
Input
--
--
--
--
--
--
™
95 and later.
19
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