Omron NJ501-1300 User manual

Machine Automation Controller
NJ-series
CPU Unit Built-in EtherNet/IP Port
CPU Unit
User’s Manual
W506-E1-01
NJ501-1300
NJ501-1400
NJ501-1500

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or
by any means, mechanical, electronic, photocopying, recording, or otherwise, without the prior written permission of
OMRON.
No patent liability is assumed with respect to the use of the information contained herein. Moreover, because OMRON is
constantly striving to improve its high-quality products, the information contained in this manual is subject to change without
notice. Every precaution has been taken in the preparation of this manual. Nevertheless, OMRON assumes no responsibility
for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained in
this publication.
OMRON, 2011

1
Introduction
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
Introduction
Thank you for purchasing an NJ-series CPU Unit.
This manual contains information that is necessary to use the NJ-series CPU Unit. Please read this
manual and make sure you understand the functionality and performance of the NJ-series CPU Unit
before you attempt to use it in a control system.
Keep this manual in a safe place where it will be available for reference during operation.
This manual is intended for the following personnel, who must also have knowledge of electrical sys-
tems (an electrical engineer or the equivalent).
•Personnel in charge of introducing FA systems.
•Personnel in charge of designing FA systems.
•Personnel in charge of installing and maintaining FA systems.
•Personnel in charge of managing FA systems and facilities.
For programming, this manual is intended for personnel who understand the programming language
specifications in international standard IEC 61131-3 or Japanese standard JIS B3503.
This manual covers the following products.
•NJ-series CPU Units
•NJ501-1300
•NJ501-1400
•NJ501-1500
Intended Audience
Applicable Products

Relevant Manuals
2NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
Relevant Manuals
There are three manuals that provide basic information on the NJ-series CPU Units: the NJ-series CPU
Unit Hardware User’s Manual, the NJ-series CPU Unit Software User’s Manual (this manual), and the
NJ-series Instructions Reference Manual.
Most operations are performed from the Sysmac Studio Automation Software. Refer to the Sysmac Stu-
dio Version 1 Operation Manual (Cat. No. W504) for information on the Sysmac Studio.
Other manuals are necessary for specific system configurations and applications.
Read all of the manuals that are relevant to your system configuration and application to make the most
of the NJ-series CPU Unit.
NJ-series User’s Manuals
Basic information
Introduction to NJ-series Controllers
Setting devices and hardware
Using motion control
Using EtherCAT
Using EtherNet/IP
Using CJ-series Units
Software settings
Using motion control
Using EtherCAT
Using EtherNet/IP
Programming
Using motion control
Using EtherCAT
Using CJ-series Units
Programming error processing
Testing operation and debugging
Using motion control
Using EtherCAT
Using EtherNet/IP
Maintenance
Using EtherCAT
Using EtherNet/IP
Using CJ-series Units
NJ-series CPU Unit Hardware User´s Manual NJ-series CPU Unit Software User´s Manual NJ-series Instructions Reference Manual NJ-series CPU Unit Motion Control User´s Manual
NJ-series CPU Unit Built-in EtherCAT Port User´s Manual
NJ-series Motion Control Instructions Reference Manual
NJ-series CPU Unit Built-in EtherNet/IP Port User´s Manual NJ-series Troubleshooting Manual CJ-series Special Unit Operation Manuals for NJ-series CPU Unit
Troubleshooting and managing
errors in an NJ-series Controller
Use the
relevant
manuals for
references
according to
any error that
occurs.

3
Manual Configuration
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
Manual Configuration
NJ-series CPU Unit Hardware User’s Manual (Cat. No. W500)
Section Description
Section 1
Introduction This section provides an introduction to the NJ-series Controllers and their features, and gives the NJ-series Controller specifications.
Section 2
System Configuration This section describes the system configuration used for NJ-series Controllers.
Section 3
Configuration Units This section describes the parts and functions of the configuration devices in the NJ- series Controller configuration, including the CPU Unit and Configuration Units.
Section 4
Installation and Wiring This section describes where and how to install the CPU Unit and Configuration Units and how to wire them.
Section 5
Troubleshooting This section describes the event codes, error confirmation methods, and corrections for errors that can occur.
Section 6
Inspection and Maintenance
This section describes the contents of periodic inspections, the service life of the Bat-
tery and Power Supply Units, and replacement methods for the Battery and Power
Supply Units.
Appendices The appendices provide the specifications of the Basic I/O Units, Unit dimensions, load short-circuit protection detection, line disconnection detection, and measures for
EMC Directives.
NJ-series CPU Unit Software User’s Manual (Cat. No. W501)
Section Description
Section 1
Introduction This section provides an introduction to the NJ-series Controllers and their features, and gives the NJ-series Controller specifications.
Section 2
CPU Unit Operation This section describes the variables and control systems of the CPU Unit and CPU Unit status.
Section 3
I/O Ports, Slave Configuration, and
Unit Configuration
This section describes how to use I/O ports, how to create the slave configuration
and unit configuration and how to assign functions.
Section 4
Controller Setup This section describes the initial settings of the function modules.
Section 5
Designing Tasks This section describes the task system and types of tasks.
Section 6
Programming This section describes programming, including the programming languages and the variables and instructions that are used in programming.
Section 7
Simulation, Transferring Projects to
the Physical CPU Unit, and Opera-
tion
This section describes simulation of Controller operation and how to use the results
of simulation.
Section 8
CPU Unit Status This section describes CPU Unit status.
Section 9
CPU Unit Functions This section describes the functionality provided by the CPU Unit.
Section 10
Communications Setup This section describes how to go online with the CPU Unit and how to connect to other devices.
Section 11
Example of Actual Application Pro-
cedures
This section describes the procedures that are used to actually operate an NJ-series
Controller.
Section 12
Troubleshooting This section describes the event codes, error confirmation methods, and corrections for errors that can occur.
Appendices The appendices provide the CPU Unit specifications, task execution times, system- defined variable lists, data attribute lists, CJ-series Unit memory information, CJ-
series Unit memory allocation methods, and data type conversion information.

Manual Configuration
4NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual
(Cat. No. W506) (This Manual)
Section Description
Section 1
Introduction
This section provides an overview and the specifications of the built-in EtherNet/IP
port on an NJ-series Controller. It introduces EtherNet/IP communications and
describes the system configuration and operating procedures.
Section 2
Installing Ethernet Networks This section describes the Ethernet network configuration devices, network installa- tion, and cable connection methods.
Section 3
System-defined Variables Related to
the Built-in EtherNet/IP Port
This section describes the system-defined variables that are related to the built-in
EtherNet/IP port.
Section 4
Determining IP Addresses This section describes how to set IP addresses for built-in EtherNet/IP ports.
Section 5
Sysmac Studio Settings for the
Built-in EtherNet/IP Port
This section describes the settings that are required for EtherNet/IP communications.
Section 6
Testing Communications This section describes how to perform communications test with EtherNet/IP nodes to confirm that the built-in EtherNet/IP port is set correctly.
Section 7
Tag Data Link Functions This section introduces tag data link communications and describes the settings that are required to use tag data links.
Section 8
Message Communications This section describes how to use CIP message communications for devices on the EtherNet/IP network, e.g., to read and write data.
Section 9
Socket Service This section describes how to use socket communications to send and receive data with TCP/UDP.
Section 10
FTP Server This section describes how to use the FTP server to download and upload files in the SD Memory Card to and from FTP clients.
Section 11
Automatic Clock Adjustment This section describes how to automatically get clock information from an NTP server to update the clock information in the CPU Unit.
Section 12
SNMP Agent This section describes how to use the SNMP to manage the built-in EtherNet/IP port as an SNMP agent.
Section 13
Communications Performance and
Communications Load
This section describes tag data links communications, adjustment of the communica-
tions load, and communications time.
Section 14
Troubleshooting This section describes how to use event codes and network status to confirm errors and corrections for them.
Appendices
The appendices provide a functional comparison of EtherNet/IP between NJ-series
CPU Units and other series, and describe EDS file management, Windows firewall
settings for connections from computers, and details on memory used for CJ-series
Units.

5
Manual Configuration
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
Sysmac Studio Version 1 Operation Manual (Cat. No. W504)
Section Description
Section 1
Introduction This section provides an overview and lists the specifications of the Sysmac Studio and describes its features and components.
Section 2
Installation and Uninstallation This section describes how to install and uninstall the Sysmac Studio.
Section 3
System Design This section describes the basic concepts for designing an NJ-series System with the Sysmac Studio and the basic operating procedures.
Section 4
Programming This section describes how to create programs with the Sysmac Studio.
Section 5
Online Connections to a Controller This section describes how to go online with a Controller.
Section 6
Debugging This section describes how to debug the programs online on the Controller or debug it offline with the Simulator.
Section 7
Other Functions This section describes Sysmac Studio functions other than system design functions.
Section 8
Reusing Programming This section describes how to reuse the programs that you create with the Sysmac Studio.
Section 9
Support Software Provided with the
Sysmac Studio
This section describes the Support Software that is provided with the Sysmac Studio.
Section 10
Troubleshooting This section describes the error messages that are displayed when you check a pro- gram on the Sysmac Studio and how to correct those errors.
Appendices
The appendices describe the following:
Driver Installation for Direct USB Cable Connection
Specifying One of Multiple Ethernet Interface Cards
Online Help
Simulation Instructions

Manual Structure
6NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
Manual Structure
The following page structure is used in this manual.
Special information in this manual is classified as follows:
Note References are provided to more detailed or related information.
Page Structure
Special Information
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.
Additional Information
Additional information to read as required.
This information is provided to increase understanding or make operation easier.
4-9
4 Installation and Wiring
NJ-series CPU Unit Hardware User’s Manual (W500)
s
t
i
n
U
gnitn
u
oM
3-4
4
s
t
ne
no
p
m
o
C
rel
l
o
r
t
n
oC
g
n
i
tc
e
n
noC
1
-
3-
4
4-3 Mounting Units
The Units that make up an NJ-series Controller can be connected simply by pressing the Units together
and locking the sliders by moving them toward the back of the Units. The End Cover is connected in the
same way to the Unit on the far right side of the Controller.
1Join the Units so that the connectors fit exactly.
2The yellow sliders at the top and bottom of each Unit lock the Units together. Move the sliders
toward the back of the Units as shown below until they click into place.
Precautions for Correct UsePrecautions for Correct Use
4-3-1 Connecting Controller Components
Connector
Hook Hook holes
Slider
Lock
Release
Move the sliders toward the back
until they lock into place.
Level 1 heading
Level 2 heading
Level 3 heading
Level 2 heading
A step in a procedure
Manual name
Special information
Level 3 heading
Page tab
Gives the current
headings.
Indicates a procedure.
Icons indicate
precautions, additional
information, or reference
information.
Gives the number
of the main section.
This illustration is provided only as a sample. It may not literally appear in this manual.
The sliders on the tops and bottoms of the Power Supply Unit, CPU Unit, I/O Units, Special I/O
Units, and CPU Bus Units must be completely locked (until they click into place) after connecting
the adjacent Unit connectors.

7
Manual Structure
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
In this manual, “download” refers to transferring data from the Sysmac Studio to the physical Controller
and “upload” refers to transferring data from the physical Controller to the Sysmac Studio.
For the Sysmac Studio, synchronization is used to both upload and download data. Here, “synchronize”
means to automatically compare the data for the Sysmac Studio on the computer with the data in the
physical Controller and transfer the data in the direction that is specified by the user.
Precaution on Terminology

Manual Structure
8NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)

9
Sections in this Manual
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
Sections in this Manual
1 10
2 11
3 12
4 13
5
7
8
9
1 10
2 11
3 12
4 13
5 14
6A
7I
8
9
14
A
7I
Introduction
Installing Ethernet
Networks
Determining
IP Addresses
6
System-defined Variables
Related to the Built-in
EtherNet/IP Port
Sysmac Studio Settings
for the Built-in
EtherNet/IP Port
Testing Communications
Tag Data Link Functions
Message Communications
Socket Service
FTP Server
Automatic Clock
Adjustment
SNMP Agent
Communications Per-
formance and Commu-
nications Load
Troubleshooting
Appendices
Index

Sections in this Manual
10 NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)

11
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
CONTENTS
CONTENTS
Introduction............................................................................................................... 1
Relevant Manuals...................................................................................................... 2
Manual Configuration............................................................................................... 3
Manual Structure ...................................................................................................... 6
Sections in this Manual............................................................................................ 9
Read and Understand this Manual........................................................................ 17
Safety Precautions ................................................................................................. 21
Precautions for Safe Use ....................................................................................... 23
Precautions for Correct Use.................................................................................. 24
Regulations and Standards................................................................................... 25
Unit Versions........................................................................................................... 27
Related Manuals ..................................................................................................... 30
Revision History ..................................................................................................... 32
Section 1 Introduction
1-1 Introduction.............................................................................................................................. 1-2
1-1-1 EtherNet/IP Features.................................................................................................................. 1-2
1-1-2 Features of Built-in EtherNet/IP Port on NJ-series CPU Units ................................................... 1-3
1-2 System Configuration and Configuration Devices............................................................... 1-5
1-2-1 Devices Required to Construct a Network.................................................................................. 1-5
1-2-2 Support Software Required to Construct a Network................................................................... 1-6
1-3 Built-in EtherNet/IP Port.......................................................................................................... 1-7
1-3-1 Specifications.............................................................................................................................. 1-7
1-3-2 Part Names and Functions ......................................................................................................... 1-9
1-4 Introduction to Communications Services ......................................................................... 1-11
1-4-1 CIP (Common Industrial Protocol) Communications Services ................................................. 1-11
1-4-2 BOOTP Client ........................................................................................................................... 1-12
1-4-3 FTP Server ............................................................................................................................... 1-13
1-4-4 Automatic Clock Adjustment..................................................................................................... 1-13
1-4-5 Socket Service.......................................................................................................................... 1-14
1-4-6 Specifying Host Names ............................................................................................................ 1-14
1-4-7 SNMP Agent............................................................................................................................. 1-15
1-5 EtherNet/IP Communications Procedures .......................................................................... 1-16
1-5-1 Outline ...................................................................................................................................... 1-16

12 NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
CONTENTS
Section 2 Installing Ethernet Networks
2-1 Selecting the Network Devices...............................................................................................2-2
2-1-1 Recommended Network Devices................................................................................................2-2
2-1-2 Network Devices Manufactured by OMRON...............................................................................2-3
2-1-3 Ethernet Switch Types ................................................................................................................2-3
2-1-4 Ethernet Switch Functions ..........................................................................................................2-3
2-1-5 Precautions for Ethernet Switch Selection..................................................................................2-4
2-2 Network Installation................................................................................................................. 2-6
2-2-1 Basic Installation Precautions .....................................................................................................2-6
2-2-2 Recommended Network Devices................................................................................................2-6
2-2-3 Precautions .................................................................................................................................2-6
2-3 Connecting to the Network..................................................................................................... 2-8
2-3-1 Ethernet Connectors ...................................................................................................................2-8
2-3-2 Connecting the Cable..................................................................................................................2-8
Section 3 System-defined Variables Related to the Built-in
EtherNet/IP Port
3-1 System-defined Variables Related to the Built-in EtherNet/IP Port .................................... 3-2
3-2 System-defined Variables.......................................................................................................3-3
3-3 Specifications for Individual System-defined Variables .................................................... 3-10
Section 4 Determining IP Addresses
4-1 IP Addresses............................................................................................................................4-2
4-1-1 IP Address Configuration ............................................................................................................4-2
4-1-2 Allocating IP Addresses ..............................................................................................................4-3
4-1-3 Subnet Masks .............................................................................................................................4-3
4-1-4 CIDR ...........................................................................................................................................4-3
4-2 Built-in EtherNet/IP Port IP Address Settings....................................................................... 4-4
4-2-1 Determining IP Addresses ..........................................................................................................4-4
4-2-2 Setting IP Addresses...................................................................................................................4-5
4-2-3 Online Connection.......................................................................................................................4-7
4-2-4 Checking the Current IP Address................................................................................................4-9
4-3 Private and Global Addresses.............................................................................................. 4-10
4-3-1 Private and Global Addresses...................................................................................................4-10
4-3-2 Using a Private Address for the Built-in EtherNet/IP Port .........................................................4-11
4-3-3 Using a Global Address for the Built-in EtherNet/IP Port ..........................................................4-12
Section 5 Sysmac Studio Settings for the Built-in EtherNet/IP Port
5-1 TCP/IP Display ......................................................................................................................... 5-2
5-2 Link Settings Display .............................................................................................................. 5-4
5-3 FTP Display..............................................................................................................................5-5
5-4 NTP Settings Display...............................................................................................................5-6
5-5 SNMP Settings Display ...........................................................................................................5-7
5-6 SNMP Trap Settings Display...................................................................................................5-9

13
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
CONTENTS
Section 6 Testing Communications
6-1 Testing Communications........................................................................................................ 6-2
6-1-1 PING Command ......................................................................................................................... 6-2
6-1-2 Using the PING Command ......................................................................................................... 6-2
6-1-3 Host Computer Operation........................................................................................................... 6-3
Section 7 Tag Data Link Functions
7-1 Introduction to Tag Data Links...............................................................................................7-2
7-1-1 Tag Data Links............................................................................................................................ 7-2
7-1-2 Data Link Data Areas.................................................................................................................. 7-3
7-1-3 Tag Data Link Functions and Specifications............................................................................... 7-5
7-1-4 Overview of Operation................................................................................................................ 7-6
7-1-5 Starting and Stopping Tag Data Links ........................................................................................ 7-8
7-1-6 Controller Status......................................................................................................................... 7-8
7-1-7 Concurrency of Tag Data Link Data..........................................................................................7-10
7-2 Setting Tag Data Links .......................................................................................................... 7-14
7-2-1 Starting the Network Configurator ............................................................................................ 7-14
7-2-2 Tag Data Link Setting Procedure.............................................................................................. 7-16
7-2-3 Registering Devices.................................................................................................................. 7-17
7-2-4 Creating Tags and Tag Sets...................................................................................................... 7-18
7-2-5 Connection Settings.................................................................................................................. 7-28
7-2-6 Connecting the Network Configurator to the Network .............................................................. 7-38
7-2-7 Downloading Tag Data Link Parameters................................................................................... 7-43
7-2-8 Uploading Tag Data Link Parameters ....................................................................................... 7-46
7-2-9 Verifying the Tag Data Links ..................................................................................................... 7-49
7-2-10 Starting and Stopping Tag Data Links ......................................................................................7-52
7-2-11 Clearing the Device Parameters............................................................................................... 7-54
7-2-12 Saving the Network Configuration File .....................................................................................7-55
7-2-13 Reading a Network Configuration File......................................................................................7-57
7-2-14 Checking Connections.............................................................................................................. 7-58
7-2-15 Changing Devices..................................................................................................................... 7-60
7-2-16 Displaying Device Status .......................................................................................................... 7-61
7-3 Ladder Programming for Tag Data Links ............................................................................ 7-62
7-3-1 Ladder Programming for Tag Data Links .................................................................................. 7-62
7-3-2 Status Flags Related to Tag Data Links.................................................................................... 7-66
7-4 Tag Data Links with Models Other than NJ-Series CPU Units .......................................... 7-67
Section 8 Message Communications
8-1 Overview of the CIP Message Communications Service..................................................... 8-2
8-1-1 Overview of the CIP Message Communications Service ........................................................... 8-2
8-1-2 Message Communications Service Specifications ..................................................................... 8-2
8-2 Using CIP Message Communications ................................................................................... 8-3
8-2-1 Overview..................................................................................................................................... 8-3
8-2-2 CIP Communications Instructions............................................................................................... 8-3
8-2-3 Using CIP Communications Instructions .................................................................................... 8-4
8-2-4 Route Path.................................................................................................................................. 8-6
8-2-5 Preparing Derivative Data Types to Use CIP Communications Instructions............................... 8-9
8-2-6 Sample Programming for CIP Connectionless (UCMM) Message Communications ............... 8-12
8-2-7 Sample Programming for CIP Connection (Class 3) Message Communications ..................... 8-18
8-2-8 Operation Timing ...................................................................................................................... 8-25
8-2-9 Response Codes ...................................................................................................................... 8-26
8-3 CIP Objects Sent to the Built-in EtherNet/IP Port............................................................... 8-30
8-3-1 CIP Objects Sent to the Built-in EtherNet/IP Port ..................................................................... 8-30
8-3-2 Identity Object (Class ID: 01 Hex) ............................................................................................ 8-30
8-3-3 TCP/IP Interface Object (Class ID: F5 hex).............................................................................. 8-32

14 NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
CONTENTS
8-3-4 Ethernet Link Object (Class ID: F6 Hex)...................................................................................8-34
8-3-5 Controller Object (Class ID: C4 Hex) ........................................................................................8-38
Section 9 Socket Service
9-1 Basic Knowledge on Socket Communications.....................................................................9-2
9-1-1 Sockets .......................................................................................................................................9-2
9-1-2 Port Numbers for Socket Services ..............................................................................................9-2
9-2 Basic Knowledge on Protocols..............................................................................................9-3
9-2-1 Differences between TCP and UDP............................................................................................9-3
9-2-2 Fragmenting of Send Data ..........................................................................................................9-4
9-2-3 Data Reception Processing.........................................................................................................9-6
9-2-4 Broadcasting ...............................................................................................................................9-8
9-3 Overview of Built-in EtherNet/IP Port Socket Services........................................................9-9
9-3-1 Overview .....................................................................................................................................9-9
9-3-2 Procedure....................................................................................................................................9-9
9-4 Settings Required for the Socket Services ......................................................................... 9-10
9-4-1 Settings Required for the Socket Services................................................................................9-10
9-4-2 Making the Settings with the Sysmac Studio ............................................................................9-11
9-5 Socket Service Instructions..................................................................................................9-13
9-6 Details on Using the Socket Services..................................................................................9-14
9-6-1 Using the Socket Services ........................................................................................................9-14
9-6-2 Procedure to Use Socket Services ...........................................................................................9-15
9-6-3 Timing Chart for Output Variables Used in Communications....................................................9-16
9-6-4 UDP Sample Programming.......................................................................................................9-18
9-6-5 TCP Sample Programming .......................................................................................................9-23
9-7 Precautions in Using Socket Services ................................................................................9-29
9-7-1 Precautions for UDP and TCP Socket Services ....................................................................... 9-29
9-7-2 Precautions for UDP Socket Services.......................................................................................9-29
9-7-3 Precautions for TCP Socket Services .......................................................................................9-29
Section 10 FTP Server
10-1 Overview and Specifications................................................................................................10-2
10-1-1 Overview ...................................................................................................................................10-2
10-1-2 Specifications............................................................................................................................10-2
10-2 FTP Server Function Details.................................................................................................10-3
10-2-1 Supported Files.........................................................................................................................10-3
10-2-2 Connecting to the FTP Server ..................................................................................................10-3
10-3 Using the FTP Server Function............................................................................................10-5
10-3-1 Procedure..................................................................................................................................10-5
10-3-2 List of Settings Required for the FTP Server Function..............................................................10-5
10-3-3 FTP Settings Display................................................................................................................. 10-6
10-4 FTP Server Application Example .........................................................................................10-7
10-5 Using FTP Commands ..........................................................................................................10-9
10-5-1 Table of Commands ..................................................................................................................10-9
10-5-2 Using the Commands..............................................................................................................10-10
10-6 Using SD Memory Card Operations...................................................................................10-16
10-6-1 SD Memory Card Types.......................................................................................................... 10-16
10-6-2 File Types................................................................................................................................10-17
10-6-3 Initializing SD Memory Cards..................................................................................................10-17
10-6-4 Format of Variable Data .......................................................................................................... 10-17
10-7 Application Example from a Host Computer ....................................................................10-19

15
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
CONTENTS
Section 11 Automatic Clock Adjustment
11-1 Automatic Clock Adjustment................................................................................................ 11-2
11-1-1 Overview................................................................................................................................... 11-2
11-1-2 Specifications............................................................................................................................ 11-3
11-2 Procedure to Use the Automatic Clock Adjustment Function .......................................... 11-4
11-2-1 Procedure ................................................................................................................................. 11-4
11-2-2 Settings Required for Automatic Clock Adjustment .................................................................. 11-4
11-2-3 NTP Display.............................................................................................................................. 11-5
11-3 Troubleshooting Automatic Clock Adjustment................................................................... 11-7
Section 12 SNMP Agent
12-1 SNMP Agent........................................................................................................................... 12-2
12-1-1 Overview................................................................................................................................... 12-2
12-1-2 Specifications............................................................................................................................ 12-3
12-1-3 SNMP Messages...................................................................................................................... 12-3
12-1-4 MIB Specifications .................................................................................................................... 12-4
12-2 Procedure to Use the SNMP Agent....................................................................................12-20
12-2-1 Procedures ............................................................................................................................. 12-20
12-2-2 Settings Required for the SNMP Agent .................................................................................. 12-20
12-2-3 SNMP Settings Display........................................................................................................... 12-22
12-2-4 SNMP Trap Settings Display................................................................................................... 12-24
12-3 Troubleshooting SNMP Agent............................................................................................12-26
12-3-1 SNMP Agent Errors ................................................................................................................ 12-26
12-3-2 Event Log Error Codes for the SNMP Agent .......................................................................... 12-26
Section 13 Communications Performance and Communications
Load
13-1 Communications System...................................................................................................... 13-2
13-1-1 Tag Data Link Communications Method................................................................................... 13-2
13-1-2 Calculating the Number of Connections ................................................................................... 13-4
13-1-3 Packet Interval (RPI) Accuracy................................................................................................. 13-5
13-2 Adjusting the Communications Load.................................................................................. 13-6
13-2-1 Checking Bandwidth Usage for Tag Data Links........................................................................ 13-7
13-2-2 Tag Data Link Bandwidth Usage and RPI................................................................................. 13-8
13-2-3 Adjusting Device Bandwidth Usage.......................................................................................... 13-9
13-2-4 Changing the RPI ................................................................................................................... 13-10
13-2-5 RPI Setting Examples............................................................................................................. 13-16
13-3 I/O Response Time in Tag Data Links................................................................................ 13-21
13-3-1 Timing of Data Transmissions................................................................................................. 13-21
13-3-2 Built-in EtherNet/IP Port Data Processing Time ..................................................................... 13-21
13-3-3 Relationship between Task Periods and Packet Intervals (RPIs) ........................................... 13-23
13-3-4 Maximum Tag Data Link I/O Response Time ......................................................................... 13-25
13-4 Message Service Transmission Delay............................................................................... 13-27

16 NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
CONTENTS
Section 14 Troubleshooting
14-1 Overview of Errors.................................................................................................................14-2
14-1-1 How to Check for Errors............................................................................................................14-2
14-1-2 Errors Related to the EtherNet/IP Function Module..................................................................14-6
14-2 Troubleshooting.....................................................................................................................14-9
14-2-1 Error Table.................................................................................................................................14-9
14-2-2 Error Descriptions ...................................................................................................................14-14
14-2-3 Troubleshooting.......................................................................................................................14-37
14-3 Checking Status with the Network Configurator.............................................................. 14-38
14-3-1 The Network Configurator’s Device Monitor Function.............................................................14-38
14-3-2 Connection Status Codes and Troubleshooting......................................................................14-45
Appendices
A-1 Functional Comparison of EtherNet/IP Ports on NJ-series CPU Units and Other Series.A-2
A-2 EDS File Management.............................................................................................................A-3
A-2-1 Installing EDS Files.....................................................................................................................A-4
A-2-2 Creating EDS Files......................................................................................................................A-5
A-2-3 Deleting EDS Files......................................................................................................................A-5
A-2-4 Saving EDS Files ........................................................................................................................A-6
A-2-5 Searching EDS Files...................................................................................................................A-6
A-2-6 Displaying EDS File Properties...................................................................................................A-6
A-2-7 Creating EDS Index Files............................................................................................................A-7
A-3 Precautions for Using the Network Configurator on Windows XP, Windows Vista,
or Windows 7 .........................................................................................................................A-8
A-3-1 Changing Windows Firewall Settings..........................................................................................A-8
A-4 Variable Memory Allocation Methods..................................................................................A-11
A-4-1 Variable Memory Allocation Rules ............................................................................................A-11
A-4-2 Important Case Examples.........................................................................................................A-14
A-5 Precautions When Accessing External Outputs from NJ-series CPU Units....................A-15
Index

17
Read and Understand this Manual
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
Read and Understand this Manual
Please read and understand this manual before using the product. Please consult your OMRON representative
if you have any questions or comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a
period of one year (or other period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-
INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE
PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR
INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which
liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS
REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS
WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO
CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

Read and Understand this Manual
18 NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the
combination of products in the customer's application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying
ratings and limitations of use that apply to the products. This information by itself is not sufficient for a
complete determination of the suitability of the products in combination with the end product, machine,
system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not
intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses
listed may be suitable for the products:
• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or
uses not described in this manual.
• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical
equipment, amusement machines, vehicles, safety equipment, and installations subject to separate
industry or government regulations.
• Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR
PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO
ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any
consequence thereof.