Omron NJ-series Instruction Manual

Machine Automation Controller NJ-series
General-purpose Ethernet
Connection Guide
(TCP/IP)
OMRON Corporation
V750 series RFID System
P543-E1-01

About Intellectual Property Right and Trademarks
Microsoft product screen shots reprinted with permission from Microsoft Corporation.
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GmbH, Germany.
Ethernet is a registered trademark of Xerox Corporation.
Java and all Java-related trademarks and logos are trademarks or registered trademarks of
Oracle Corporation, Inc., in the USA and other countries.
Company names and product names in this document are the trademarks or registered
trademarks of their respective companies.

Table of Contents
1. Related Manuals........................................................................................ 1
2. Terms and Definition................................................................................. 2
3. Remarks..................................................................................................... 3
4. Overview .................................................................................................... 5
5. Applicable Devices and Support Software.............................................. 6
5.1. Applicable Devices............................................................................. 6
5.2. Device Configuration.......................................................................... 7
6. Ethernet Communications Settings......................................................... 9
6.1. Ethernet Communications Settings.................................................... 9
6.2. Example of Checking Connection .................................................... 10
7. Connection Procedure.............................................................................11
7.1. Work Flow .........................................................................................11
7.2. Setting Up the RFID Reader/Writer.................................................. 12
7.3. Setting Up the Controller.................................................................. 18
7.4. Connection Status Check................................................................. 25
8. Initialization Method................................................................................ 28
8.1. Controller ......................................................................................... 28
8.2. RFID Reader/Writer ......................................................................... 29
9. Program.................................................................................................... 30
9.1. Overview .......................................................................................... 30
9.2. Destination Device Command.......................................................... 34
9.3. Error Detection Processing .............................................................. 37
9.4. Variables .......................................................................................... 40
9.5. ST Program...................................................................................... 45
9.6. Timing Charts................................................................................... 62
9.7. Error Process ................................................................................... 68
10. Revision History...................................................................................... 74

1. Related Manuals
1
1. Related Manuals
The table below lists the manuals related to this document.
To ensure system safety, make sure to always read and heed the information provided in all
Safety Precautions, Precautions for Safe Use, and Precaution for Correct Use of manuals for
each device which is used in the system.
Cat. No. Model Manual name
W500 NJ501-[][][][]
NJ301-[][][][]
NJ-series CPU Unit Hardware User's Manual
W501 NJ501-[][][][]
NJ301-[][][][]
NJ-series CPU Unit Software User's Manual
W506 NJ501-[][][][]
NJ301-[][][][]
NJ-series CPU Unit Built-in EtherNet/IP Port User's Manual
W504 SYSMAC-SE2[][][] Sysmac Studio Version 1 Operation Manual
W502 NJ501-[][][][]
NJ301-[][][][]
NJ-series Instructions Reference Manual
Z235 V750-BA50C04-US
V740-HS01[][]
V750-series UHF RFID System User’s Manual

2. Terms and Definition
2
2. Terms and Definition
Terms Explanation and Definition
IP address Ethernet uses an IP address to perform communications.
The IP address (Internet Protocol address) is an address that is used to
identify a node (host computer or controller, etc.) on Ethernet.
IP addresses must be set and managed so they do not overlap.
Socket A socket is an interface that allows you to directly use TCP or UDP
functions from the user program. The socket services enable data
exchange with destination nodes. The NJ-series Machine Automation
Controller performs socket communications by using the standard socket
service instructions.
Connect processing/
Accept processing
Open processing is executed on each node to connect the TCP socket.
The open method depends on whether the node is opened as a server or
client.
In this document, the processing executed to open a node as a client is
called "connect processing" and the processing executed to open as a
server is called "accept processing".
Keep-alive function When the keep-alive function is used with TCP/IP socket services, the
keep-alive communications frame is used to check the status of the
connection with the destination node (either a server or client) if there are
no communications during the specified time interval.
Checks are executed at a certain interval, and if there is no response to
any of them then the connection is terminated.
Linger function This is an option for the TCP socket that enables immediate connect
processing using the same port number without waiting until the port
number opens after RST data is sent when the TCP socket closes.
If the linger option is not specified, FIN data will be sent when a TCP
socket is closed, and then approximately 1 minute will be required to
confirm the transmission and perform other closing management with the
destination node. Therefore, it may not be possible to immediately use
TCP sockets with the same port number.

3. Remarks
3
3. Remarks
(1) Understand the specifications of devices which are used in the system. Allow some
margin for ratings and performance. Provide safety measures, such as installing safety
circuit in order to ensure safety and minimize risks of abnormal occurrence.
(2) To ensure system safety, always read and heed the information provided in all Safety
Precautions, Precautions for Safe Use, and Precaution for Correct Use of manuals for
each device used in the system.
(3) The users are 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 of or whole part of this
document without the permission of OMRON Corporation.
(5) This document provides the latest information as of April 2013. The information on this
manual is subject to change for improvement without notice.

3. Remarks
The following notation is used in this document.
Precautions for Safe Use
Indicates precautions on what to do and what not to do to ensure using the product safely.
Precautions for Correct Use
Indicates precautions on what to do and what not to do to ensure proper operation and
performance.
Additional Information
Provides useful information.
Additional information to increase understanding or make operation easier.
4

4. Overview
4. Overview
This document describes the procedure for connecting the RFID Reader/Writer (V750 series)
of OMRON Corporation (hereinafter referred to as OMRON) to the NJ-series Machine
Automation Controller (hereinafter referred to as Controller) through Ethernet, and provides
the procedure for checking their connection.
Refer to the Ethernet communications settings of the prepared project file to understand the
setting procedure and key points to connect the devices via Ethernet.
The user program in this project file is used to check the Ethernet connection by
sending/receiving the message of “GETR TYP FWV (read the product type and firmware
version of the memory data)” to/from the destination device.
Prepare the latest Sysmac Studio project file beforehand. For information on how to obtain the
file, contact your OMRON representative.
Name File name Version
Sysmac Studio project file
(extension: smc)
OMRON_V750_ETN(TCP)_EV101.smc Ver.1.01
*Hereinafter, the Sysmac Studio project file is referred to as the “project file”.
The user program in the project file is referred to as the “program”.
This document aims to explain the wiring method and communications settings
necessary to connect the corresponding devices and provide the setting
procedure. The program used in this document is designed to check if the
connection was properly established, and is not designed to be constantly used
at a site. Therefore, functionality and performances are not sufficiently taken into
consideration. When you construct an actual system, please use the wiring
method, communications settings and setting procedure described in this
document as a reference and design a new program according to your
application needs.
5

5. Applicable Devices and Support Software
5. Applicable Devices and Support Software
5.1. Applicable Devices
The applicable devices are given below.
Manufacturer Name Model
OMRON NJ-series CPU Unit NJ501-[][][][]
NJ301-[][][][]
OMRON RFID Reader/Writer
(complies with FCC and EN)
V750-BA50C04-US
OMRON Antenna V740-HS01[][]
OMRON Antenna cable V740-A01 [][]M
Additional Information
As applicable devices above, the devices with the models and versions listed in Section 5.2.
are actually used in this document to describe the procedure for connecting devices and
checking the connection.
You cannot use devices with versions lower than the versions listed in Section 5.2.
To use the above devices with versions not listed in Section 5.2 or versions higher than those
listed in Section 5.2, check the differences in the specifications by referring to the manuals
before operating the devices.
Additional Information
This document describes the procedure to establish the network connection. Except for the
connection procedure, it does not provide information on operation, installation or wiring
method. It also does not describe the function or operation of the devices. Refer to the
manuals or contact your OMRON representative.
6

5. Applicable Devices and Support Software
5.2. Device Configuration
The hardware components to reproduce the connection procedure of this document are as
follows:
7
Manufacturer Name Model Version
OMRON NJ-series CPU Unit
(Built-in EtherNet/IP port)
NJ501-1500 Ver.1.03
OMRON Power Supply Unit NJ-PA3001
OMRON Switching Hub W4S1-05C Ver.1.0
OMRON Sysmac Studio SYSMAC-SE2[][][] Ver.1.04
OMRON Sysmac Studio project file OMRON_V750_ETN(TCP)
_EV101.smc
Ver.1.01
- Personal computer
(OS:Windows7)
-
- USB cable
(USB 2.0 type B connector)
-
- LAN cable -
OMRON RFID Reader/Writer V750-BA50C04-US Ver.102-10
2-103-0
OMRON Antenna (Circular) (4 max.) V740-HS01CA
OMRON Antenna cable V740-A01[][]M
OMRON AC Adapter (included) -
Precautions for Correct Use
Prepare the latest project file in advance.
To obtain the file, contact your OMRON representative.
Precautions for Correct Use
Update the Sysmac Studio to the version specified in this section or higher version using the
auto update function. If a version not specified in this section is used, the procedures
described in Section 7 and subsequent sections may not be applicable. In that case, use the
equivalent procedures described in the Sysmac Studio Version 1 Operation Manual (Cat.No.
W504).
NJ501-1500
(Built-in EtherNet/IP port)
Switching hub
W4S1-05C
Personal computer
(Sysmac Studio installed,
OS: Windows 7)
USB cable
LAN cable
Antenna
(V740-HS01CA)
RFID Reader/Writer
(V750-BA50C04-US)
AC Adapter
(included)
Antenna Cable
(V740-A01 [][]M)

5. Applicable Devices and Support Software
Additional Information
It may not be possible to reproduce the same operation with different devices or versions.
Check the configuration, model and version. If they are different from your configuration.
Contact your OMRON representative.
Additional Information
In this document, a USB is used to connect with the Controller. For information on how to
install a USB driver, refer to A-1 Driver Installation for Direct USB Cable Connection of the
Sysmac Studio Version 1 Operation Manual (Cat.No. W504).
8

6. Ethernet Communications Settings
6. Ethernet Communications Settings
This section describes the specifications such as communication parameters and variables
that are set in this document.
Additional Information
To perform communications without using the settings described in this section, you need to
modify the program. For information on the program, refer to Section 9. Program.
6.1. Ethernet Communications Settings
The settings required for Ethernet communications are shown below.
6.1.1. Communications Settings between the Personal Computer and the RFID
Reader/Writer
The setting example below is used to explain the procedure for setting the RFID
Reader/Writer by using the personal computer.
Setting item Personal computer used for setting RFID Reader/Writer
IP address 192.168.1.1 192.168.1.200 (Default)
Subnet mask 255.255.255.0 255.255.255.0 (Default)
Gateway ---.---.---.--- 192.168.1.254 (Default)
*In this document, the gateway setting is unnecessary because the connection is made in
the same segment.
6.1.2. Communications Settings between the Controller and the RFID
Reader/Writer
The setting example below is used to explain the procedure for connecting the Controller to
the RFID Reader/Writer.
Setting item NJ501-1500 RFID Reader/Writer
IP address 192.168.250.1 192.168.250.2
Subnet mask 255.255.255.0 255.255.255.0 (Default)
Gateway -.-.-.- 192.168.1.254 (Default)
Host name - “V750-BA50C04-US” (Default)
Domain name - Blank (Default)
DHCP - OFF (Default)
TCP/IP port (This is set by the program.) 7090 (Default)
*In this document, the gateway setting is unnecessary because the connection is made in
the same segment.
*This project file uses the default settings (keep-alive: use, linger option: Do not use) of the
keep-alive and linger option functions for the TCP socket communications. Use these
functions according to the system when necessary.
9

6. Ethernet Communications Settings
6.2. Example of Checking Connection
This document shows an example of a Structured Text (ST) program in which the Controller
executes the connect processing, send/receive processing, and close processing on the RFID
Reader/Writer.
The Controller and RFID Reader/Writer send and receive the message of “GETR TYP FWV
(read the product type and firmware version of the memory data)”. The following figure
outlines the operation.
Controller Ethernet RFID Reader/Writer
Project file
Local_
SrcData
Variable
Local_
RecvData
Send data
setting area
Receive data
setting area
Socket
communications
function
Receive data
Connect processing
Close processing
Send data
ST Program
IF …. THEN
……….
ELSE
……….
S
ending/Receiving Ethernet
c
ommand
Reading the product type and
firmware version
Specifying Ethernet
communications
Reading the type and firmware
version
10

7. Connection Procedure
7. Connection Procedure
This section describes the procedure for connecting the RFID Reader/Writer to the Controller
via Ethernet.
This document explains the procedures for setting the Controller and RFID Reader/Writer
from the factory default setting. For the initialization, refer to Section 8 Initialization Method.
7.1. Work Flow
Take the following steps to connect the RFID Reader/Writer to the Controller via Ethernet.
7.2 Setting Up the RFID Reader/Writer Set up the RFID Reader/Writer.
↓
7.2.1 Parameter Setting Set the parameters of the RFID Reader/Writer.
↓
7.3 Setting Up the Controller Set up the Controller.
↓
7.3.1 Starting the Sysmac Studio and
Importing the Project File
Start the Sysmac Studio, and import the project file.
↓
7.3.2 Checking the Parameters and
Building
Check the set parameters, execute the program
check on the project data and build the Controller.
↓
7.3.3 Connecting Online and
Transferring the Project Data
Connect online with the Sysmac Studio and transfer
the project data to the Controller.
↓
7.4 Connection Status Check Execute the program and confirm that Ethernet
communications are normally performed.
↓
7.4.1 Executing the Program and
Checking the Receive Data
Execute the program and confirm that the correct
data are written to the variables of the Controller.
Precautions for Correct Use
Prepare the latest project file in advance.
To obtain the file, contact your OMRON representative.
11

7. Connection Procedure
7.2. Setting Up the RFID Reader/Writer
Set up the RFID Reader/Writer.
7.2.1. Parameter Setting
Set the parameters of the RFID Reader/Writer.
For the setting, a web browser (e.g., Internet Explore) that can execute Java software is
required. Install necessary software so that Java software can operate.
Set the IP address of the personal computer to 192.168.1.1.
Precautions for Correct Use
Set the parameters of the RFID Reader/Writer by using the Ethernet communications of the
personal computer.
Note that you may need to change the settings of the personal computer depending on the
status of the personal computer.
1
Connect the antenna to the
antenna port on the side of the
RFID Reader/Writer.
(Side of RFID Reader/Writer)
2
Connect the Switching Hub to
the Ethernet port on the other
side of the RFID Reader/Writer
to using the LAN cable.
Connect the included AC
Adapter cable to the DC power
input.
(Other side of RFID Reader/Writer)
12

7. Connection Procedure
3
Start Internet Explorer from the
personal computer that is
connected to the Switching Hub.
*Set the IP address of the
personal computer to
192.168.1.1. Use the following
procedure to check the IP
address of the personal
computer.
(1)Click Connect to the
Internet View network status
and tasks - Change adapter
settings on the Control Panel.
(2)Double-click Local Area
Connection on the Network
Connections.
(3)Click the Details Button on
the Local Area Connection
Status Dialog Box.
(4)Confirm that the IP address is
192.168.1.1.
4
Click Tool ( ) on the command
bar of Internet Explorer and
select Internet options.
13

7. Connection Procedure
5
The Internet Options Dialog Box
is displayed. Select the
Connections Tab.
6
The Internet Options Dialog Box
is displayed. Click the LAN
settings Button.
14

7. Connection Procedure
7
The Local Area Network (LAN)
Settings Dialog Box is
displayed.
Confirm that the Use a proxy
server for your LAN Check Box
is cleared from the Proxy server
Field, and click the OK Button.
8
Click the OK Button on the
Internet Options Dialog Box.
15

7. Connection Procedure
9
Type http://192.168.1.200
/ in the address bar ( ) of
Internet Explorer.
The Reader Status Window is
displayed. Click the Reader
Settings Button.
The V750 Operation Warning
Dialog Box is displayed. Click
the OK Button.
10
The Reader Settings Window
shows the Ethernet settings.
Make the settings as follows and
click the Save Button.
Host Name
:V750-BA50C04-US
Domain Name
:Blank
DHCP: OFF
IP Address
:192.168.250.2
Subnet Mask
:255.255.255.0
Gateway
:192.168.1.254
TCP/IP Port
:7090
*If the settings are different from
the above, change the
corresponding set values.
Exit Internet Explorer.
*If Internet Explorer does not
exit, the IP address of the RFID
Reader/Writer will be changed
and the screen will not be
displayed.
*The gateway setting is unnecessary. However, if you
leave the Gateway Field blank, an error will occur.
Therefore, use the default setting.
16

7. Connection Procedure
11
Cycle the power supply to the
RFID Reader/Writer.
*The new parameters will be
enabled after the power supply
is cycled.
Additional Information
In addition to changing the Ethernet settings on the web browser screen, you can set and
read the Ethernet parameters by using the setting commands (SETR and GETR). For
information on the specifications of the setting commands, refer to Section 5 Command Line
Interface in the V750-series UHF RFID System User’s Manual (Cat. No. Z235).
17