Omron NT31 Operation Manuals page 98

Connecting to the RS-232C Port at the Host
S Connecting to CS1 series serial communication unit
A CS1 series backplane mounted type : CS1W-SCU21
[Setting the front switches]
Set the unit number of the serial communication unit by using the rotary switch lo-
cated on the front panel. Set each switch with a flat blade screwdriver so that the
values or symbols in the setting value window agree with the following.
SCU21
RUN RDY
ERC ERH
SD1 SD2
RD1 RD2
UNIT
F E
1 0
No.
D
3 2
C
5 4
B A
7 6
9 8
[Allocation DM area settings for CPU]
Setting is written from the peripheral tool (a programming console or CX-Program-
mer) directly into the allocation DM area (system setting area) of the CPU. After
the setting is written, it becomes effective by turning the power ON, restarting the
unit, restarting the communication port, or execution of the STUP command.
In the following, the channel numbers of the allocation DM area and settings are
shown.
Allocation DM area
Port 1 Port 2
m m+10
m+6 m+16
Set the unit number to "0" through "F" so
that it will not overlap with the numbers
used in other units.
Writing Value
8200
000
E
-
m=DM30000+100*unit number (CH)
Settings
NT link (1:N) mode
connected PT (0 – 7)
Section 4-1
87