60
Connecting to the RS-232C Port at the Host Section 4-1
Allocation DM Area Settings for 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 turn-
ing the power ON, restarting the Unit, restarting the communications port, or
execution of the STUP command.
In the following, the channel numbers of the allocation DM area and the set-
tings are shown.
Connecting to a CS/CJ-
series Serial
Communications Unit
CS/CJ-series Rack-mounting Unit:
CS1W-SCU21(-V1), CJ1W-SCU21(-V1), CJ1W-SCU41(-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
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 turn-
ing the power ON, restarting the Unit, restarting the communications port, or
execution of the STUP command.
In the following, the channel numbers of the allocation DM area and the set-
tings are shown.
m=DM30000+100
×unit # (CH)
Allocation DM area (CH) Writing Value Settings
Port 1 Port 2
DM32000 DM32010 8000 Host link mode, 2 stop bits, even parity, data
length 7 bits
DM32001 DM32011 0000 Communications speed 9600 bps.
0007 Communications speed 19200 bps.
DM32002 DM32012 0000 Transmit delay time 0 ms.
DM32003 DM32013 0000 No CTS control Unit No.0 for host link
SCU21
RUN
ERC
SD1
RD1
RDY
ERH
SD2
RD2
No.
F
E
1
0
Set the unit number to 0 through F so
that it will not overlap with the numbers
used in other units.
UNIT
Allocation DM area (CH) Writing Value Settings
Port 1 Port 2
m m+10 8000 host link mode, 2 stop bits, even parity, data
length 7 bits
m+1 m+11 0000 Communications speed 9600 bps.
0007 Communications speed 19200 bps.
m+2 m+12 0000 Transmit delay time 0 ms.
m+3 m+13 0000 No CTS control Unit No.0 for host link
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