DDK HFC3000II - 4-7. RS232 C Interface Signal

Chapter 4 Installation
PAGE 4-25
4-7. RS232C Interface Signal
4-7-1. RS232C Specifications (RS232C-1)
4-7-2. RS232C Communication Specifications
Synchronizing Method
Start-stop
Synchronization method
Communication
Speed
9600bps(fixed)
Communication Mode
Half-duplex system
Start Bit
1 bit(fixed)
Data Bit
8 bits(fixed)
Stop Bit
1 bit(fixed)
Flow control
None
Parity
None(fixed)
Pin No.
Signal
IN/OUT
Details
1
NC
-
Not used
2
RXD
IN
Not used
3
TXD
OUT
Operation result data output
4
DTR
OUT
Always ON output
5
GND
-
Signal ground
6
NC
-
Not used
7
RTS
OUT
Always ON output
8
NC
-
Not used
9
NC
-
Not used
・Be sure to clear the PLC receive buffer when the control power of the Unit is activated.
Output of garbage data due to the effects of noise, etc., may cause data deviation.
●Connection Diagram
D-SUB 9-pin socket D-SUB 25-pin plug (9-pin socket)
TXD 3 3(2) RXD (result data output)
RXD 2 2(3) TXD (not used)
DTR 4 20(4) DTR
6(6) DSR
RTS 7 4(7) RTS
5(8)CTS
GND 5 7(5) GND
Manufacturer: OMRON
Type: Connector socket Model: XM3D-0921
Specifications: D-SUB 9-pin socket, soldered type
Type: Connector hood Model: XM2S-0913
Specifications: Inch thread (#4-40),
maximum outer diameter of compatible cable: 9φ
RS232C-1
Caution
Equipment Side
Unit Side
S0140185-H