Omron NX Series Instruction Manual

Z465-E1-01
Machine Automation Controller NX-series
Serial (RS-232C) Communications
Connection Guide
OMRON Corporation
Auto Focus Multi Code Reader
V320-F / V420-F / V430-F-series

About Copyrights and Trademarks
Microsoft product screen shots used with permission from Microsoft.
Windows is a registered trademark of Microsoft Corporation in the USA and other countries.
Sysmac and SYSMAC are trademarks or registered trademarks of OMRON Corporation in
Japan and other countries for OMRON factory automation products.
Company names and product names in this document are the trademarks or registered
trademarks of their respective companies.

Contents
1. Related Manuals.......................................................................................... 1
2. Restrictions and Precautions .................................................................... 2
3. Overview ...................................................................................................... 3
4. Applicable Products and Support Tools .................................................. 4
4.1. Applicable Products............................................................................. 4
4.2. Device Configuration ........................................................................... 5
5. Serial Communications Settings............................................................. 10
5.1. Serial Communications Settings ....................................................... 10
5.2. Cable Wiring Diagram ........................................................................11
5.3. Example of Connection Check for Communications......................... 12
6. Connection Procedure.............................................................................. 13
6.1. Operation Flow .................................................................................. 13
6.2. Code Reader Setup........................................................................... 14
6.3. Controller Setup................................................................................. 19
6.4. Checking That Serial Communications Work.................................... 30
Appendix 1. Initializing the System................................................................ 35
A1.1. Initializing the Controller........................................................................ 35
A1.2. Initializing the Code Reader.................................................................. 36
Appendix 2. Ladder Program .......................................................................... 37
A2.1. Overview................................................................................................ 37
A2.2. Program in Ladder Language ............................................................... 40
A2.3. Variables Used ...................................................................................... 41
Revision History ............................................................................................... 43

1. Related Manuals
1
1. Related Manuals
To ensure system safety, make sure to always read and follow the information provided in all
Safety Precautions and Precautions for Safe Use in the manuals for each device which is
used in the system.
The following OMRON Corporation (hereinafter referred to as “OMRON”) manuals are related
to this document:
Cat. No. Model Manual name
W535 NX Series NX-series NX701 CPU Unit Hardware User’s
Manual
W593 NX Series NX-series NX102 CPU Unit Hardware User’s
Manual
W578 NX Series NX-series NX1P2 CPU Unit Hardware User’s
Manual
W501 NJ/NX Series NJ/NX-series CPU Unit Software User’s Manual
W540
NX Series
NX-series Communications Interface Unit User’s
Manual
W504
SYSMAC-SE2

Sysmac Studio Version 1 Operation Manual
W502 NJ/NX Series Machine Automation Controller Instructions
Reference Manual
Z432 V320-F/V330-F/V420-F/V430-
F Series
MicroHAWK V320-F/V330-F/V420-F/V430-F
Series Barcode Reader User Manual
Z407 V320-F/V330-F/V420-F/V430-
F Series
Autofocus Multicode Reader MicroHAWK V320-
F/V330-F/V420-F/V430-F Series User Manual
for Communication Settings

2. Restrictions and Precautions
2
2. Restrictions and Precautions
(1) Before building a system, understand the specifications of devices which are used in the
system. Allow some margin for ratings and performance, and provide safety measures
such as installing a safety circuit in order to minimize the risk in case of failure.
(2) To ensure system safety, make sure to read and follow the information provided in all
Safety Precautions and Precautions for Safe Use in the manuals for each device which is
used in the system.
(3) The user is encouraged to confirm the standards and regulations that the system must
conform to.
(4) It is prohibited to copy, to reproduce, and to distribute a part or the whole of this document
without the permission of OMRON Corporation.
(5) The information contained in this document is current as of April 2023.
It is subject to change for improvement without notice.
The following notations are used in this document.
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury, or may result
in serious injury or death. Additionally, there may be severe
property damage.
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury, or property
damage.
Precautions for Safe Use
Precautions on what to do and what not to do to ensure safe usage of the product.
Precautions for Correct Use
Precautions on what to do and what not to do to ensure proper operation and performance.
Note
Additional information to read as required.
This information is provided to increase understanding or make operation easier.
Symbols
The filled circle symbol indicates operations that you must do.
The specific operation is shown in the circle and explained in text.
This example shows a general precaution for something that you must do.

3. Overview
3
3. Overview
This document describes the procedures for connecting the OMRON code reader products
(V320-F/V420-F/V430-F) to an NX Series Machine Automation Controller with a Serial
Communications Unit (hereinafter referred to as “controller”) via serial communications and for
checking their connections.
Refer to Section 5. Serial Communication Settings and Section 6. Connection Procedure to
understand the setting procedures and key points of setup to establish a serial
communications connection.
Obtain the latest version of the Sysmac Studio Project File in advance before proceeding.
Contact OMRON for information on how to obtain this file.
Name Filename Version
Sysmac Studio Project File
(Extension: smc2)
OMRON_V320_V420_V430_NX_RXD_V100.smc2 Ver. 1.00
The purpose of this document is to describe the wiring methods, communication
settings, and setting procedures required to establish a connection for
communications with applicable devices. In addition, the program used in this
document is designed to check that the connection has been correctly
performed (connection check). Since the program is not intended for permanent
use on-site, full consideration is not given to functionality and performance.
When configuring an actual system, please refer to the wiring methods,
communication settings, and setting procedures described in this document to
design and create a program that meets your purpose.

4. Applicable Products and Support Tools
4
4. Applicable Products and Support Tools
4.1. Applicable Products
The applicable devices that are required to ensure a connection are as follows:
Manufacturer Name Model Version
OMRON
NX Series CPU Unit
NX701-

NX102-
NX1P2- Same or
later
version as
indicated in
section 4.2.
OMRON Serial Communications Unit
NX-CIF210
OMRON Code reader V320-F-
V420-F-
V430-F-
Note
From among the above applicable devices, this document uses the devices listed in section
4.2 for the connection check. When using devices that are not described in section 4.2,
check the connection according to this document.
Note
This document describes the procedures for establishing the communication connection of
the device, and does not describe the operation, installation and wiring method of the
device.
For details on the above products (other than communication connection procedures),
please refer to the instruction manual for the product or contact OMRON.
Precautions for Correct Use
The connection and connection check procedures described in this document use the
devices listed in section 4.2, from among the above applicable devices.
You cannot use devices with versions earlier than the versions listed in section 4.2.
To use models that are not listed in section 4.2. or versions that are later than those listed in
section 4.2., check the differences in the specifications according to their instruction manuals
before operating the devices.

4. Applicable Products and Support Tools
5
4.2. Device Configuration
The system components required for reproducing the connection procedures described in this
document are as follows.
• Configuration with V320-F
Manufacturer
Name
Model
Version
OMRON
NX Series CPU Unit
(Built-in EtherNet/IP Port)
NX1P2-9024DT
Ver. 1.19
OMRON
Serial Communications Unit
NX-CIF210
Ver. 2.1
OMRON
Sysmac Studio
SYSMAC-SE2
Ver. 1.28
OMRON
Sysmac Studio Project File
OMRON_V320_V420_V430_
NX_RXD_V100.smc2
Ver. 1.00
---
PC (OS: Windows 10)
---
---
---
LAN cable
---
---
OMRON
Code reader
V320-F000M12M-SRX
Ver. 2.1.0
OMRON
V/F320-F adapter for all V420-
F cable accessories, RJ50 to
DB-15
V320-WRX

-2M
---
OMRON
Power supply
97-900006-01
---
---
AC power supply
---
---
PC
(Sysmac Studio
installed, OS:
Windows 10)
V320-F000M12M-SRX
97-900006-01
V/F320-F adapter for all
V420-F cable accessories,
RJ50 to DB-15
V320-WRX-2M
LAN cable
Ethernet hub
NX1P2-9024DT
NX-CIF210

4. Applicable Products and Support Tools
6
WebLink cannot be used for RS-232C connection.
To use WebLink, the following system components for USB connection are required.
Manufacturer
Name
Model
Version
---
PC (OS: Windows 10)
---
---
OMRON
Code reader
V320-F000M12M-SRX
Ver. 2.1.0
OMRON
V/F320-F adapter for all V420-
F cable accessories, RJ50 to
DB-15
V320-WR-1M
---
OMRON
USB breakout cable
V420-WUB-1M
---
PC
(OS: Windows 10)
V320-F000M12M-SRX
V/F320-F adapter for all V420-F
cable accessories, RJ50 to DB-15
V320-WR-1M
USB breakout cable
V420-WUB-1M

4. Applicable Products and Support Tools
7
• Configuration with V420-F
Manufacturer
Name
Model
Version
OMRON
NX Series CPU Unit
(Built-in EtherNet/IP Port)
NX1P2-9024DT
Ver. 1.19
OMRON
Serial Communications Unit
NX-CIF210
Ver. 2.1
OMRON
Sysmac Studio
SYSMAC-SE2
Ver. 1.28
OMRON
Sysmac Studio Project File
OMRON_V320_V420_V430_
NX_RXD_V100.smc2
Ver. 1.00
---
PC (OS: Windows 10)
---
---
---
LAN cable
---
---
OMRON
Code reader
V420-F000M12M-SRX
Ver. 2.1.0
OMRON
Cable (RS-232 breakout (DB-
15) and external power supply
input)
V420-WRX-1M
---
OMRON
Power supply
97-900006-01
---
---
AC power supply
---
---
V420-F000M12M-SRX
97-900006-01
Cable (RS-232 breakout (DB-15)
and external power supply input)
V420-WRX-1M
PC
(Sysmac Studio
installed, OS:
Windows 10)
LAN cable
Ethernet hub
NX1P2-9024DT
NX-CIF210

4. Applicable Products and Support Tools
8
WebLink cannot be used for RS-232C connection.
To use WebLink, the following system components for USB connection are required.
Manufacturer
Name
Model
Version
---
PC (OS: Windows 10)
---
---
OMRON
Code reader
V420-F000M12M-SRX
Ver. 2.1.0
OMRON
USB breakout cable
V420-WUB-1M
---
PC
(OS: Windows 10)
V420-F000M12M-SRX
USB breakout cable
V420-WUB-1M

4. Applicable Products and Support Tools
9
• Configuration with V430-F
Manufacturer
Name
Model
Version
OMRON
NX Series CPU Unit
(Built-in EtherNet/IP Port)
NX1P2-9024DT
Ver. 1.19
OMRON
Serial Communications Unit
NX-CIF210
Ver. 2.1
OMRON
Sysmac Studio
SYSMAC-SE2
Ver. 1.28
OMRON
Sysmac Studio Project File
OMRON_V320_V420_V430_
NX_RXD_V100.smc2
Ver. 1.00
---
PC (OS: Windows 10)
---
---
---
LAN cable
---
---
OMRON
Code reader
V430-F000M12M-SRX
Ver. 2.1.0
OMRON
RS-232C-to-I/O two-way cable
V430-WQR-3M
---
OMRON
I/O Cable
V430-W8-3M
---
OMRON
Ethernet Cable*1
V430-WE-3M
---
---
24 VDC power supply
---
---
*1: The Ethernet cable is used for WebLink connection.
Precautions for Correct Use
Obtain the latest version of the Sysmac Studio Project File from OMRON in advance.
(Contact OMRON for information on how to obtain this file.)
Precautions for Correct Use
Ensure that the Sysmac Studio and CX-Protocol are updated to the versions specified in this
section or higher. If you use versions other than the versions specified in this section, there
may be differences in the procedures in Section 7 and later. In that case, refer to the
Sysmac Studio Version 1 Operation Manual (Cat. No. W504) or CX-Protocol Operation
Manual (Cat. No. W344) to perform the equivalent procedures.
I/O Cable
V430-W8-3M
Ethernet cable
V430-WE-3M
RS-232C-to-I/O two-way cable
V430-WQR-3M
V430-F000M12M-SRX
PC
(Sysmac Studio
installed, OS:
Windows 10)
LAN cable
Ethernet hub
NX1P2-9024DT
NX-CIF210
24 VDC power supply

5. Serial Communications Settings
10
5. Serial Communications Settings
This section shows the specifications of the communication parameter settings, cable wiring,
and other information provided in this document.
Note
You need to modify the program to use communication settings that are not described in this
section. For more information on the program, please refer to Appendix 2. Ladder Program.
5.1. Serial Communications Settings
The serial communications settings are as follows.
Parameter name Serial Communications Unit Code reader
Unit number 1 ---
Communications
(connection) port
Port 2 (RS-232C) ---
Serial communications mode
No-protocol
---
Data bit length
8 bits
8 bits (default)
Stop bit 1 bit 1 bit (default)
Parity
None
None (default)
Baud rate 115,200 bps 115,200 bps (default)
Header --- None (default)
Footer --- <CR+LF> (default)
Host port protocol --- Point-to-point (default)
Precautions for Correct Use
It is assumed that the NX-CIF210 Serial Communications Unit is used with the unit number
0and the communications (connection) port Port 2. If using other conditions to connect the
Unit, refer to Appendix 2. Ladder Program and create a program by modifying the control
data in the CIO Area and PMCR Instruction.

5. Serial Communications Settings
11
5.2. Cable Wiring Diagram
For details on cable wiring, refer to Section 4 Installation and Wiring in the NX-series
Communications Interface Units User’s Manual (Cat. No. W540).
Check the connector shape and signal lines (pin assignment) before you prepare the cable.
Connector Shape and Signal Lines (Pin Assignment)
Applicable connector for serial ports on NX-CIF210: D-sub 9-pin
Applicable connector for V Series RS-232C cable: D-SUB 9-pin (Connector on V Series side:
Female)
Pin No.
Signal name
Pin assignment

5. Serial Communications Settings
12
5.3. Example of Connection Check for Communications
This document assumes that you uses a “ladder program” to check the connection for
communications. For details on the ladder program, please refer to Appendix 2. Ladder
Program.
The “Read code” message is sent and received between the NX Series CPU Unit and the
code reader. An overview of the operation is shown below.
CPU Unit Serial Communications Unit Code Reader
Project file
Ladder program
Output_RecvData
Receive data
storage area
Read data
Send data
Sends serial command.
< > (Read trigger
command)
Reads code.
Receives read data.

6. Connection Procedure
13
6. Connection Procedure
This section describes the procedures for connecting the code reader to the controller for
serial communications.
In this document, it is assumed that the controller and the code reader use the factory default
settings. For how to initialize the devices, refer to Appendix 1. Initializing the System.
6.1. Operation Flow
Use the following procedures to set up the controller for serial communications connection.
6.2. Code Reader Setup
Set up the code reader.
▼
6.2.1. Setting the Communication
Parameters
Set the communication parameters for
communications between the code reader and
the NX Unit.
▼
6.2.2. Setting the Parameters
Set the parameters for the code reader.

6.3. Controller Setup
Set up the controller.
▼
6.3.1. Setting the Hardware
Check the connection of the Serial
Communications Unit.
▼
6.3.2 Starting the Sysmac Studio
and Loading the Project File
Start the Sysmac Studio and load the project
file.
▼
6.3.3 Checking the Parameters
and Executing Build
Check the setting parameters. Then, perform
program checks and build on project data.
▼
6.3.4 Going Online and
Transferring the Project
Data
Place the Sysmac Studio online and transfer
the project data to the controller.
▼
6.3.5. Transferring the Unit
Settings
Transfer the setting data for the Serial
Communications Unit.

6.4. Checking That Serial
Communications Work
Execute the program to check that serial
communications work correctly.
▼
6.4.1. Executing the Program
Execute the program in the Sysmac Studio.
▼
6.4.2. Checking the Receive Data
In the Sysmac Studio, check that correct data
is written to the controller variables.

6. Connection Procedure
14
6.2. Code Reader Setup
Set up the code reader.
6.2.1. Setting the Communication Parameters
Set the parameters for the code reader.
Set the IP address of your PC to 192.168.188.100 and its subnet mask to 255.255.0.0.
1
[Using V320-F/V420-F]
Establish a USB connection between the V320/V420 and the PC according to the
configuration shown on page 6 or page 8.
Once the connection is established, start the procedure from step 7.
* To connect the V320/V420 to WebLink, you need to install a driver. For how to install the
driver, refer to 2-2-3 Connect to WebLink in the MicroHAWK V320-F/V330-F/V420-F/V430-
F Series Barcode Reader User Manual (Cat. No. Z432).
[Using V430-F]
Connect the RS-232C-to-I/O
two-way cable V430-W2-3M to
the I/O connector.
Then, connect the I/O
connector of V430-W2-3M to
the I/O cable V430-W8-3M.
Connect the 24V and 0V wires
of W430-W8-3M to a 24 VDC
power supply.
* In this document, only the
power supply wires of the
I/O cable are connected and
checked. Be careful not to
short-circuit any other wires.
* Ground the shield wire as
needed. For more information
on grounding, please refer to
Grounding in Appendices of
the MicroHAWK V320-
F/V330-F/V420-F/V430-F
Series Barcode Reader User
Manual (Cat. No. Z432).
24 VDC
power
supply
I/O
Connector
I/O Cable
V430-W8-3M
D-Sub
9-pin
RS-232C-to-I/O two-way cable
W430-WQR-3M
Red Striped
Gray Striped

6. Connection Procedure
15
2
[V430-F Series Only]
Connect the Ethernet connector
on the code reader to the PC
using the Ethernet cable V430-
WE-3M.
Turn ON the 24 VDC power
supply.
3
Connect the PC to the switching
hub with a LAN cable.
Connect 24 VDC power supply
(for the switching hub) to the
switching hub.
4
Set the IP Address of the PC.
For the IP address, enter
192.168.188.100. For the
subnet mask, enter
255.255.0.0.
For the procedure to open the
screen on the right, please refer
to the next step 5.
24 VDC power supply
LAN cable
Switching hub
W4S1-05C
Ethernet
Connector

6.Connection Procedure
16
5
Static connection (Setting the fixed IP address)
•Using Windows 10
(1) From the Windows Start Menu, select Windows Settings – Network & Internet.
(2) Under Change your network settings, click Change adapter options.
(3) In Network Connections, right-click on the Ethernet icon and select Properties.
(4) In the Ethernet Properties Dialog Box, select Internet Protocol Version 4 (TCP / IPv4),
and click the Properties Button. Set the IP Address of the PC to 192.168.188.100.
(5) Click the OK Button.
•Using Windows 7
(1) From the Windows Start Menu, select Control Panel – Network and Internet – Network
and Sharing Center.
(2) Click on Local Area Connection. The Local Area Connection Status Dialog Box is
displayed. Click Properties.
(3) In the Local Area Connection Properties Dialog Box, select Internet Protocol Version
4 (TCP/IPv4), and click the Properties Button. Set the IP Address of the PC to
192.168.188.100.
(4) Click the OK Button.
6
Start your browser and enter
http://192.168.188.2.
“Google Chrome” is the
recommended browser.
7
When the WebLink startup
screen is displayed, go to step
9.
If you cannot access by
WebLink, go to step 8.
8
If the WebLink startup screen does not appear, it means that communications are not
established between the code reader and the PC. Please check the following.
•The code reader and the PC have a proper physical (cable) connection.
→ Refer to steps 1 and 2 for checking the connection.
•The IP Addresses of the PC and code reader are set correctly.
→ Refer to step 4 for setting the IP address of the PC.
For other measures that can be taken, please refer to When unable to access by WebLink in
Q&A in Appendices of the MicroHAWK V320-F/V330-F/V420-F/V430-F Series Barcode
Reader User Manual (Cat. No. Z432).

6. Connection Procedure
17
9
The WebLink screen appears.
10
Click on the Setup Tab and, in
Read Cycle Sequence, set
Cycle to Triggered.
11
Click on the gear icon on the
upper right of the screen and
select Advanced.
12
The Advanced Settings Screen
appears.
Select the Communications
Tab and check that the settings
are as follows.
[RS232A]
Baud Rate: 115.2 K
Parity: None
Stop Bits: One
Data Bits: Eight
[Host Protocol]
Protocol Selection: Point-to-
Point
[Preamble]
Preamble: Disabled
[Postamble]
Postamble: Enabled
Postamble Characters:
<CR><LF>