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Connecting to the RS-232C Port at the Host Section 4-1
*2
Use a CPM2C-CN111 or CS1W-CN114/118 Connecting Cable, CPM1-CIF01 RS-232C Adapter, or CPM1-
CIF11 RS-422A Adapter to connect.
*3
The CQM1H-CPU11 does not have a built-in RS-232C port, so connect to the peripheral port to the PT with
a CS1W-CN118 Connecting Cable.
*4
CPU Units of CVM1/CV-series PLCs without the suffix -EV@ cannot be connected.
Settings at The Host
When using the host link method, the settings shown below must be made at
the host (depending on the Unit, some of these settings may not be neces-
sary, or settings not shown here may be necessary).
Set the host link communications speed at 9600 bps or 19200 bps with the
memory switch at the NT631/NT631C. For details, refer to 6-7-2 Setting the
Host Link Method (page 155).
The 1-to-N setting enables BCC (Block Check Character). It is not actually pos-
sible to connect more than one NT631/NT631C in a single host link.
The setting methods for each type of Unit are described in the following.
Connecting to a C-series
Host Link Unit
C200H/C200HS/C200HE/HG/HX (-Z)E Rack-mounting Unit: C200H-LK201-
V1
Setting the Front Switches
Set each switch with a flat blade screwdriver so that the values or symbols in
the setting value window agree with the following.
Item Switch Setting
I/O port RS-232C
Communications speed
Set the same speed as for the NT631/NT631C.
(*1)
Transfer code ASCII, 7 data bits, 2 stop bits
Parity Even
1-to-1/1-to-N
1-to-N
(*2)
Instruction level Level 1, 2, 3
Unit # 00
LK201
RUN
RCV
XMT
ERROR
SW1
0
0
5
2
• Unit # (SW1, SW2)
Set these switches to 0.
• Instruction level, parity, and transfer code (SW4)
Set this switch to 2.
• Communications speed (SW3)
Set this switch to 5 to select 9600 bps.
Set this switch to 6 to select 19200 bps.
SW3
SW2
SW4