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3-4-9 One-to-one NT Link Connections
High-speed communications can be achieved by providing a direct access
through the use of the 1:1 NT Link between the CPM1A and Programmable Ter-
minal.
OMRON Programmable Terminal
RS-232C Cable
CPM1A CPU Unit
RS-232C
Adapter
Note The 1:1 NT Link can only be used when the RS-232C Adapter (CPM1-CIF01) is
connected.
Set the DIP switch of the RS-232C Adapter (CPM1-CIF01) to the NT (bottom)
side.
The following diagram shows the wiring in the RS-232C cable used to connect a
CPM1A to a Programmable Terminal.
1
2
3
4
5
6
–
SD
RD
RS
CS
–
–
–
SG
7
8
9
FG
2
3
4
5
6
7
8
9
1/Cover
SD
RD
RS
CS
–
–
SG9
RS-232C Adapter
Pin No.Signal
–
Pin No. Signal
PT
Wiring and Connections
Section 3-4