Omron Programmable Terminals NT631C User Manual
Page 86
69
Connecting to the RS-232C Port at the Host
Section 4-1
Note
Cannot be used with the CS1D-CPU65H/67H.
CPU Unit Allocation DM Area Settings
Setting is 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 setting is written, it becomes effective by turning the
power ON, restarting the Unit, restarting the communications port, or execu-
tion of the STUP command.
In the following, the channel numbers of the allocation DM area and settings
are shown.
*1
Set any value between 0000 and 0009 hex for the baud rate. The same
baud rate will be used regardless of the value as long as it is between 0000
and 0009 hex.
When connecting PTs with model numbers 3 to 6 to port 1, for example, set
the value 8200 hex to DM32000, 0000 hex to DM32001, and 0006 hex to
DM32006.
Connecting to CS/CJ-series Serial Communications Unit
A CS/CJ-series Rack-mounting Unit:
CS1W-SCU21,
CJ1W-SCU21(-V1)/41(-V1)
Setting the Front Switches
Set the unit number of the Serial Communications Unit by using the rotary
switch located 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 fol-
lowing.
Allocation DM Area Settings for CPU Unit
Setting is 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 setting is written, it becomes effective by turning the
power ON, restarting the Unit, restarting the communications port, or execu-
tion of the STUP command.
In the following, the channel numbers of the allocation DM area and settings
are shown.
m=DM30000+100*unit number (CH)
Allocated DM Area words
Setting
Setting Contents
Port 1
Port 2
DM32000
DM32010
8200
1:N NT Link Mode
DM32001
DM32011
0000 to 0009
(*1)
Baud rate (standard)
DM32006
DM32016
000
@
@ = The highest unit number of the
connected PTs (0 to 7)
Allocated DM Area words
Setting
Setting Contents
Port 1
Port 2
m
m+10
8200
1:N NT Link Mode
m+1
m+11
0000 to 0009
(*1)
Baud rate (standard)
m+6
m+16
000
@
@ = The highest unit number of the
connected PTs (0 to 7)
SCU21
RUN
ERC
SD1
RD1
RDY
ERH
SD2
RD2
No.
FE
D
C
B
A
9
8
7
6
5
4
32
10
UNIT
Set the unit number to 0 through F so
that it will not overlap with the numbers
used in other units.