Omron NT20S Operation Manual page 280

Method for Making the Cable for Connection to the Host
Connecting an NT20S to a C-Series C200HS, C200HX/HG/HE, CPM1, CQM1, CVM1/CV-Series (-EVj)CPU
S C-Series C200HX/HG/HE, CPM1, CQM1, CVM1/CV-Series (-EVj) CPU Unit 9-pin Connector Specifications
Applicable CPU:
CQM1-CPU21-E
CQM1-CPU41-E
CQM1-CPU42-E
CQM1-CPU43-E
CQM1-CPU44-E
CV500-CPU01-EV1
CV1000-CPU01-EV1 C200HS-CPU31-E
Note: The host link function incorporated in CV/CVM1 CPUs (with the exception of -EVj) cannot be used.
S Electrical characteristics:
S Signal direction:
1
5
S Wiring Connections
The NT20S does not use pin 4 (RS) or pin 5 (CS). Either short the RS and CS pins of the PC connector together or
set the CTS setting selector switch at the rear face of the host link unit to "0V" (see
NT20S
RS-232C
interface
CV2000-CPU01-EVj C200HS-CPU33-E C200HX-CPU34-E
CVM1-CPU01-EVj
CVM1-CPU11-EVj
CVM1-CPU21-EVj
C200HS-CPU21-E
C200HS-CPU23-E
Complies with EIA RS-232C
Signal input and output is relative to the PC.
6
Connector Connector
Pin No.
Connector cover
2
3
4
5
9
9
Abbrevi- Pin
atioon number
1
SD 2
RD 3
RS 4
CS 5
– 6
– 7
– 8
SG 9
C200HE-CPU32-E C200HX-CPU44-E
C200HE-CPU42-E C200HX-CPU54-E
C200HG-CPU33-E C200HX-CPU64-E
C200HG-CPU43-E
C200HG-CPU53-E
C200HG-CPU63-E
Signal Name Signal Name
Frame ground
Send data
Receive data
Request to send
Clear to send
Signal ground
PC (host link unit)
Pin
number
Connector
cover
2
3
4
5

–
–
–
9
9-pin connector
Shielding
wire
Abbreviation Abbreviation
FG
SD (TXD)
RD (RXD)
RS (RTS)
CS (CTS)
SG (GND)

in the figure).
Abbrevi-
atioon
FG
SD
RD
RS-232C
RS
interface
CS
–
–
–
SG
Appendix G
Signal Direction
Input Output
– –
f
f
f
f
– –
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