4-1
Section
Connecting to the RS-232C Port at the Host
59
The following table shows the words allocated in the DM Area and the settings.
Allocated DM word
Value
Settings
Port 1
Port 2
Value
Settings
DM32000
DM32010
8200
1:N NT Link mode
DM32001
DM32011
0000 to 0009
(*1)
Communications baud rate
(standard)
DM32006
DM32016
000
j
j
= The largest model number of
the connected PT (0 – 7)
*1 Set any value between 0000 and 0009 Hex for the communications baud rate.
The same baud rate will be used regardless of the value as long as it is between
0000 and 0009 Hex.
For example, when connecting PTs with model numbers 3, 4, 5, and 6 to port 1,
set DM 32000 to 8200 Hex, DM 32001 to 0000 Hex, and DM 32006 to 0006 Hex.
Connecting to CS/CJ-series Serial Communications Unit
A CS-series Rack-mounted Unit: CS1W-SCU21
CJ-series: CJ1W-SCU41 (Port 2 is an RS-232C port.)
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 following.
Set the unit number to 0 through F so
that it will not duplicate the numbers
used in other Units.
SCU21
RUN
ERC
SD1
RD1
RDY
ERH
SD2
RD2
No.
FE
D
C
B
A
9
8
7
6
5
4
32
10
UNIT
CS1W-SCU21
CJ1W-SCU41
Set the unit number to 0 through F so
that it will not duplicate the numbers
used in other Units.
Allocation DM Area Settings for CPU Unit
Setting is 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 setting is written, it becomes effective by turning the power ON, restart-
ing the Unit, restarting the communication port, or execution of the STUP
instruction.
The following table shows the words allocated in the DM Area and the settings.
m = D (100
×
unit number)
Allocated DM word
Value
Settings
Port 1
Port 2
Value
Settings
m
m+10
8200
1:N NT Link mode
m+1
m+11
0000 to 0009
(*1)
Communications baud rate
(standard)
m+6
m+16
000
j
j
= The largest model number of
the connected PT (0 - 7)
*1 Set any value between 0000 and 0009 Hex for the communications baud rate.
The same baud rate will be used regardless of the value as long as it is between
0000 and 0009 Hex.
