Omron NT21 - SETUP MANUAL 10-2001 Setup Manual page 61

Connecting to the RS-232C Port at the Host
Peripheral port
This is used mainly for
connection to the
Programming Device.
(This also supports the
RS-232C Unit connection.)
RS-232C port
This is used mainly for
connection to the
RS-232C Unit.
(This also supports a
CX-Programmer
connection.)
Peripheral port
This is used mainly for connection
to the Programming Device.
(This also supports the RS-232C
Unit connection.)
50
Setting the Front Switches
Set pins 4 and 5 of the CPU Unit DIP switch in accordance with the port that the
NT21 is connected to.
CS1G/H, CS1G/H-H
RUN
ERR/ALM
INH
PRPHL/COMM
SYSMAC CS1G
PROGRAMMABLE CONTROLLER
CPU4 2
OPEN
MCPWR BUSY
OPEN
PERIPHERAL
PORT
CJ1G
Connecting to CS-series Serial Communications Board
Serial Communications Board equipped with a RS-232C port for CS-series CPU
Units: CS1W-SCB41/21
Allocation DM Area Settings for CPU Unit
Settings are written from the Programming Device (a Programming Console or
CX-Programmer) directly into the allocated DM Area (PC Setup) of the CPU
Unit. After the settings are written, they become effective by turning the power
ON, restarting the Unit, restarting the communication port, or execution of the
STUP instruction.
DIP switches (inside the battery storage)
• Set pin 4 to ON (establishing communication in ac-
cordance with PC Setup) when connecting the NT21
to the peripheral port.
• Set pin 5 to OFF (establishing communication in ac-
cordance with PC Setup) when connecting the NT21
to the RS-232C port.
DIP switches (inside the battery storage)
• Set pin 4 to ON (establishing communication in ac-
cordance with PC Setup) when connecting the NT21
to the peripheral port.
• Set pin 5 to OFF (establishing communication in ac-
cordance with PC Setup) when connecting the NT21
to the RS-232C port.
RS-232 port
This is used mainly for connection to the RS-232C
Unit.
(This also supports a CX-Programmer connection.)
Section 4-1