Omron NT31 Operation Manuals page 91

Connecting to the RS-232C Port at the Host
Peripheral port
This is used mainly for
connection to the peripheral
tool.
(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 .)
Port 1
DM32000
DM32001
DM32002
DM32003
80
[Setting the front switches]
Set the CPU DIP switches to 4 or 5 in accordance with the port NT31/NT31C is
connected to.
S Connecting to CS1 series serial communication board
INNER board with RS–232C port equipped for CS1 series CPU type :
CS1W-SCB41/21
[Allocation DM area settings for CPU]
Settings are written from the peripheral tool (a programming console or CX-Pro-
grammer) directly into the allocation DM area (system setting area) of the CPU.
After the settings are written, they become effective by turning the power ON, re-
starting the unit, restarting the communication port, or execution of the STUP com-
mand.
In the following, the channel numbers of the allocation DM area and the settings
are shown.
Allocation DM area
Port 2
DM32010
DM32011
DM32012
DM32013
RUN
ERR/ALM
INH
PRPHL/COMM
SYSMAC CS1G
PROGRAMMABLE CONTROLLER
2
CPU4
DIP switches (inside the battery storage)
OPEN
Set SW4 to ON (establishing communication in
MCPWR BUSY
accordance with PC system settings) when connecting
OPEN
the NT31/NT31C to a peripheral port.
Set SW5 to OFF (establishing communication in
accordance with PC system settings) when connecting
PERIPHERAL
the NT31/NT31C to a peripheral port.
PORT
Writing Value
8000
0000
0007
0000
0000
Settings
Host link mode, 2 stop bits, even parity, data
length 7 bits
Communication speed 9600 bps.
Communication speed 19200 bps.
Transmit delay time 0 ms.
No CTS control Unit No.0 for host link
Section 4-1