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4. CONTROL FEATURES
RS232C CONTROL
Connect the RS-232C straight cable to the RS-232C serial port (D-sub 9-pin). Then the unit can
be controlled from external host equipment.
• The DN-F400 automatically transmits status data when status is changed.
• The DN-F400 will respond to status requests by transmitting the associated status data
RS232C specifications.
Connections
• Applicable connector : 9-pin D-sub (male)
• Baud rate : 38400 bps
• Data Bit : 8bit
• Parity : None
• Stop bit : 1bit
• Flow control : None
Pin layout
Pin No
Signal Name
1
Ground
6
NC
2
TxD
7
NC
3
RxD
8
NC
4
NC
9
NC
5
S. Ground
Control command codes
The control command packets have a data length of 7 bytes or more. Each packet starts with
“@” and ends with 0x0D.
Example:
Control command code for number 5 (ASCII code @02005CR)
@
0
2
0
0
5
CR
0x40
0x30
0x32
0x30
0x30
0x35
0x0d
Response timeout is 100 mSec.
Status Request and Status Information codes
Example
: Status Information code “Disc In” (ASCII code @0 CDCI CR)
@
0
C
D
C
I
CR
0x40
0x30
0x43
0x44
0x43
0x49
0x0d
