Omron Programmable Terminals NT31 NT31C Setup Manual page 122

Connecting to the Host's RS-422A/485 Port
Using the NT Link (1:1) Method
Allocation DM
area (CH)
Writing Value Writing Value
Port 2
DM32010 8000
DM32011 0000
0007
DM32012 0000
DM32016 0000
Compatible Host Units
Some models and series of OMRON PCs have the RS-422A type NT link (1:1)
function built in.
• The C200HX/HG/HE(-Z)E CPUs can be connected by the RS-422A type NT
link (1:1) method by installing a Communications Board.
• The CQM1H CPUs can be connected by the RS-422A type NT link (1:1) meth-
od by installing a Serial Communications Board.
Check the model and series of the PC against the type of CPU before making the
connections.
The host units that can be connected to the RS-422A port of the NT31/NT31C by
the RS-422A type NT link (1:1) method are indicated in the table below.
CPUs with Built-in RS-422A type NT
PC Series
Link (1:1) Function
C200HE-CPU32-(Z)E
C200HE-CPU42-(Z)E
C200HG-CPU33-(Z)E
C200HG-CPU43-(Z)E
C200HG-CPU53-(Z)E
C200HG-CPU63-(Z)E
C series C200HX-CPU34-(Z)E
C200HX-CPU44-(Z)E
C200HX-CPU54-(Z)E
C200HX-CPU64-(Z)E
C200HX-CPU65-ZE
C200HX-CPU85-ZE
CQM1H-CPU51/61
CV500-CPU01-EV1
CV series CV i
CV1000-CPU01-EV1
( 2) (*2)
CV2000-CPU01-EV1
CVM1-CPU01-EV2
CVM1
CVM1-CPU11-EV2
(*2)
series
CVM1-CPU21-EV2
*1 One of the following communication boards is required:
C200HW-COM03-EV1 or C200HW-COM06-EV1.
*1 A CQM1H-SCB41 Serial Communication Board is required.
*1 CPUs of CVM1/CV series PCs without the suffix -EVj cannot be connected.
The NT link (1:1) method cannot be used using RS-485. To use the NT link (1:1)
method, connect by RS-422A.
NT link connection using RS-422A/485 is not possible with CPM1.
Settings at the Host
The setting methods for each type of unit are described in the following.
Settings Settings
Host link mode, 2 stop bits, data length 7 bits,
even parity,
Communication speed
Communication speed
Transmit delay time
No CTS control Unit No.0 for host link
(*1)
C200HE (-Z)E
(*1)
(*1)
(*1)
C200HG (-Z)E
(*1)
(*1)
(*1)
(*1)
(*1)
C200HX (-Z)E
(*1)
(*1)
(*1)
CQM1H
CV500
CV1000
CV2000
CVM1
Section 5-2
9600 bps.
19200 bps.
0 ms.
Model Name
111