19
DIP switches (inside the battery storage)
• Set SW4 to ON (establishing communication in
accordance with PC Setup) when connecting the NS-
series PT to a peripheral port.
• Set SW5 to OFF (establishing communication in
accordance with PC Setup) when connecting the NS-
series PT to an RS-232C port.
Peripheral port
This is used mainly for
connection to the
Programming Device.
(This also supports the
RS-232C unit connection.)
RS-232 port
This is used mainly for
connection to the RS-232C
unit.
(This also supports the
CX-Programmer.)
Connecting to CS1 Series Serial Communications Board
Serial Communications Board equipped with an RS-232C port for CS-series CPU Units:
CS1W-SCB41/21-V1
Allocation DM Area Settings in CPU Unit
Settings are written from the Programming Device (a Programming Console or
CX-Programmer) directly into the allocation DM area (system setting area) of the CPU Unit.
After the settings are written, they become effective by turning the power ON, restarting the
unit, restarting the communications port, or execution of the STUP command.
In the following, the words allocated in the DM area and the settings are shown.
Allocation DM area word
Port 1 Port 2
Writing Value Settings
D32000 D32010 8000 Host link mode, 2 stop bits, even parity,
data length 7 bits
0000 Communications speed 9600 bps. D32001 D32011
0007 Communications speed 19200 bps.
D32002 D32012 0000 Transmit delay time 0 ms.
D32003 D32013 0000 No CTS control, Unit No. 0 for host link
1-3-2 Connecting to an RS-422A/485 Port at the Host
Compatible Host Units
Some models and series of OMRON PLCs have the RS-422A type host link function built in.
With the CS-series and CQM1H, the host link method can be used by installing a serial
Communications Board. In addition, some C200HX/HG/HE(-Z)E devices have an integral
CPU Unit that can be connected in the host link method by installing a Communications
Board.
With the CPM2A and CPM2C, an RS-422A type of 1:1 NT Link can be created through a
CPM1-CIF11 RS-422A Adapter.
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