This manual describes the configuration and settings required for communicating with the
host devices used by NS-series Programmable Terminals for Host Link communications.
First familiarize yourself with the contents of the manuals related to NS-series
Programmable Terminals (the NS-series Setup Manual, NS-series Programming Manual,
and the CX-Designer online help), and then use this manual for Host Link communications.
1
1-1 Overview
This section provides an overview of connecting an NS-V1/V2 PT to an OMRON
Programmable Controller that supports Host Link communications.
The NS-V1/V2 PT is connected 1:1 to the CPU Unit or a Host Link Unit of an OMRON PLC.
Host Link communications are used to read and display or write the words and settings in the
host PLC.
NS-V1/V2 PT serial ports A and B can both be connected to a host by means of the Host
Link protocol.
Reference
When an NS-V1/V2 PT and a PLC are connected by
Host Link, it is not possible to change to RUN Mode.
If the PLC is set for RUN Mode, it is automatically
switched to Monitor Mode. For example, if a
compatible Programming Console is connected to
the PLC and the PLC operating mode is switched to
RUN mode, the password display for the Monitor
Mode will be displayed at the Programming Console.
2
1-2 Connection Configuration
This section describes the system configuration required for connecting to the host by Host
Link communications.
1-2-1 NS-V1/V2 Configuration Required for Connection
NS-V1/V2 Models
One of the following NS-V1/V2 PTs is required to connect with the host by Host Link
communications.
NS-series PTs without the -V1 or -V2 suffix do not
support Host Link communications. One of the above
NS-V1/V2 models must be used.
NS-V1/V2 System Program
To connect to the host by means of Host Link communications, system program version 6 or
later must be installed in the NS-V1/V2 PT.
System program
Ver. 6 or later
3
Communications Ports
Communications
port
Serial port A Host Link
Serial port B Host Link
Applicable communications method
1:1 NT link
1:N NT link
Memory link
(Bar-code reader input)
(Temperature controller connection)
(CX-Designer connection)
1:1 NT link
1:N NT link
Memory link
(Bar-code reader input)
(Temperature controller connection)
(CX-Designer connection)
The following table shows the communications methods that can be used in combination
when serial ports A and B are used at the same time.
Serial port B
Host Link
Host Link YES YES YES YES YES YES YES
1:1 NT link YES YES YES YES YES YES YES
1:N NT Link YES YES YES YES YES YES YES
Memory link YES YES YES No YES YES YES
Bar-code reader YES YES YES YES No YES YES
Serial port A
Temperature controller YES YES YES YES YES YES YES
CX-Designer connection YES YES YES YES YES YES No
1:1 NT Link
1:N NT Link
Memory link
Bar-code
reader
Temperature
controller
CX-Designer
connection
4
Communications Setup
The following table shows the communications settings required at the NS-V1/V2 PT and the
host to connect to the host by means of Host Link communications.
Setup
location
NS-V1/V2 PT Baud rate: 9,600 or 19,200 bps (See note 1.)
Host Start bits: 1 bit
Data: 7 bits
Stop bits: 2 bits
Parity: Even
Host Link unit number: 0
Baud rate: 9,600 or 19,200 bps (See note 1.)
Note 1: The baud rate settings must be the same for both the NS-V1/V2 PT and the host.
2: Use the 1:N protocol setting.
1-2-2 Applicable PLCs
The OMRON PLCs listed below can be connected as hosts using Host Link communications.
The connection can be made either directly to the built-in serial port on the CPU Unit or to a
Host Link Unit mounted to the PLC.
The types of host that can be connected to a PT by using the serial ports on the NS-series
PT and connecting to an RS-232C port at the host are described here.
1-3-1 Connecting to an RS-232C Port at the Host
Compatible Host Units
Some models and series of OMRON PLCs have the host link function built in.
In the CS-series or CQM1H PLCs, the host link method can be used by installing a Serial
Communications Board. In addition, some C200HX/HG/HE(-Z)E have an integral CPU Unit
that can be connected in the host link method by installing a Communications Board.
Check the model and series of the PLC, the type of installed Serial Communications Board
or Serial Communications Unit before making a connection.
The PLC Units/Boards that can be connected to an NS-series PT through a Host Link
connection using RS-232C ports on both the PLC Unit/Board and PT are listed in the
following table.
CPM2A-30/40/60CD@@-@+CPM1CIF01 (Peripheral port connection)
CPM2C-10/20@@@@@@-@
(See note 1.)
CQM1-CPU21-E
CQM1-CPU41/42/43/44-EV1
CQM1H-CPU11/21/51/61 (See note 2.) CQM1H-CPU51/61 CQM1H-SCB41
CV500-CPU01-EV1 CV500-CPU01-EV1 CV500-LK201
CV1000-CPU01-EV1 CV1000-CPU01-EV1
CV2000-CPU01-EV1 CV2000-CPU01-EV1
CVM1-CPU01-EV2
CVM1-CPU11-EV2
CVM1-CPU21-EV2
SRM1-C02-V2
CPU Units Connectable with Host
Link Units or Expansion
Communications Board
C2000H-CPU01-EV1
C1000HF-CPUA1-EV1
C2000H-CPU01-EV1
CVM1-CPU01-EV2
CVM1-CPU11-EV2
CVM1-CPU21-EV2
Host Link Unit/
Communications
Board
C500-LK201-EV1
C500-LK203
CV500-LK201
Note 1: Use a CPM2C-CN111 or CS1W-CN114/118 Connecting Cable, CPM1-CIF01
RS-232C Adapter, or CPM1-CIF11 RS-422A Adapter to connect.
2: 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.
3: 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 necessary, or settings not shown
here may be necessary).
Item Switch Setting
I/O port RS-232C
Communications speed Set the same baud rate as set at the NS-series PT (See note 1.)
Transfer code ASCII, 7 data bits, 2 stop bits
Parity Even
1-to-1/1-to-N 1-to-N (See note 2.)
Command level Level 1, 2, 3
Unit # 00
Note 1: Set the Host Link communications speed (baud rate) to 9600 bps or 19200 bps with
the Communications Setting menu item in the CX-Designer and the System Menu
for the NS-series PT. For details, refer to 1-4 Settings for Host Link.
2: The 1-to-N setting enables using a BCC (Block Check Character). It is not actually
possible to connect more than one NS-series PT in a single Host Link.
The setting methods for each type of unit are described in the following.