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.
Trademarks
• Sysmac and SYSMAC are trademarks or registered trademarks of OMRON Corporation in Japan and other
countries for OMRON factory automation products.
• Microsoft, Windows, Windows Vista, Excel, and Visual Basic are either registered trademarks or trademarks of
Microsoft Corporation in the United States and other countries.
• EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany.
• Safety over EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH,
Germany.
• ODVA, CIP, CompoNet, DeviceNet, and EtherNet/IP are trademarks of ODVA.
• The SD and SDHC logos are trademarks of SD-3C, LLC.
Other company names and product names in this document are the trademarks or registered trademarks of their
respective companies.
Copyrights
Microsoft product screen shots reprinted with permission from Microsoft Corporation.
Introduction
Thank you for purchasing an NX-series IO-Link Master Unit.
This manual contains information that is necessary to use the NX-series IO-Link Master Unit. Please
read this manual and make sure you understand the functionality and performance of the NX-series
IO-Link Master 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.
Intended Audience
This manual is intended for the following personnel, who must also have knowledge of electrical systems (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 B 3503.
Introduction
Applicable Products
This manual covers the following product.
• NX-series IO-Link Master Unit
NX-ILM400
NX-series IO-Link Master Unit User’s Manual (W567)
Page Structure and Icons ............................................................................................................................ 7
Special Information...................................................................................................................................... 8
Precaution on Terminology .......................................................................................................................... 8
Terms and Conditions Agreement........................................................................ 11
Warranty, Limitations of Liability ................................................................................................................ 11
Precautions for Safe Use....................................................................................... 17
Precautions for Correct Use.................................................................................. 22
Regulations and Standards................................................................................... 23
Conformance to EU Directives .................................................................................................................. 23
Conformance to UL and CSA Standards................................................................................................... 24
Conformance to Shipbuilding Standards ................................................................................................... 24
Conformance to KC Standards.................................................................................................................. 24
Software Licenses and Copyrights ............................................................................................................ 24
Unit Versions ..........................................................................................................25
Unit Versions.............................................................................................................................................. 25
Unit Versions and Support Software Versions ........................................................................................... 26
Related Manuals .....................................................................................................27
A-4-2List of Terminal Block Models....................................................................................................A-35
4
NX-series IO-Link Master Unit User’s Manual (W567)
Index
CONTENTS
A-5 Version Information with CPU Units ..................................................................................A-36
A-5-1Relationship between Unit Versions of Units............................................................................ A-36
A-5-2Functions That Were Added or Changed for Each Unit Version ..............................................A-36
A-6 Version Information with Communications Coupler Units..............................................A-38
A-6-1Connection to an EtherCAT Coupler Unit................................................................................. A-38
A-6-2Connection to an EtherNet/IP Coupler Unit.............................................................................. A-40
NX-series IO-Link Master Unit User’s Manual (W567)
5
Relevant Manuals
Relevant Manuals
The table below provides the relevant manuals for the NX-series IO-Link Master Unit.
Read all of the manuals that are relevant to your system configuration and application to make the most
of the NX-series IO-Link Master Unit.
Other manuals, such as related product manuals, are necessary for specific system configurations and
applications. Refer to Related Manuals on page 27 for the related manuals.
Manual nameApplication
NX-series IO-Link Master Unit
User’s Manual
IO-Link System User’s ManualLearning general information on how to build IO-Link Systems that does not
NX-series Data Reference Manual
Learning how to use the NX-series IO-Link Master Unit
rely on the unique specifications of individual IO-Link Master Units and
IO-Link devices.
Referencing lists of the data that is required to configure systems with
NX-series Units
6
NX-series IO-Link Master Unit User’s Manual (W567)
Manual Structure
4-9
4 Installation and Wiring
NJ-series CPU Unit Hardware User’s Manual (W500)
stinU gnitnuoM 3-4
4
stnenopmoC rellortnoC gnitcennoC 1-3-4
4-3Mounting 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.
1 Join the Units so that the connectors fit exactly.
2 The 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.
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.
Page Structure and Icons
The following page structure and icons are used in this manual.
Manual Structure
Note This illustration is provided only as a sample. It may not literally appear in this manual.
NX-series IO-Link Master Unit User’s Manual (W567)
7
Manual Structure
Precautions for Safe Use
Precautions for Correct Use
Additional Information
Version Information
Special Information
Special information in this manual is classified as follows:
Precautions on what to do and what not to do to ensure safe usage of the product.
Precautions on what to do and what not to do to ensure proper operation and performance.
Additional information to read as required.
This information is provided to increase understanding or make operation easier.
Information on differences in specifications and functionality for CPU Units, Industrial PCs, and
Communications Coupler Units with different unit versions and for different versions of the Support Software is given.
Note References are provided to more detailed or related information.
Precaution on Terminology
• In this manual, “download” refers to transferring data from the Support Software to a physical device
and “upload” refers to transferring data from a physical device to the Support Software.
• In this manual, the directions in relation to the Units are given in the following figure, which shows
upright installation.
Up
RightLeft
8
Down
NX-series IO-Link Master Unit User’s Manual (W567)
Manual Structure
• This user's manual refers to NY-series IPC Machine Controller Industrial Panel PCs and Industrial
Box PCs as simply Industrial PCs or as NY-series Industrial PCs.
• This user's manual refers to the built-in EtherCAT port on an NJ/NX-series Controller or NY-series
Industrial PC as simply a built-in EtherCAT port.
• This user's manual may omit manual names and manual numbers in places that refer to the user's
manuals for CPU Units and Industrial PCs. The following table gives some examples. When necessary, refer to Related Manuals on page 27 to determine the appropriate manual based on the common text for the omitted contents.
Examples
Manual nameOmitted contentsCommon text
NJ/NX-series CPU Unit Software User's
Manual
NY-series IPC Machine Controller Industrial Panel PC / Industrial Box PC Software
User’s Manual
NJ/NX-series CPU Unit Built-in EtherCAT
Port User's Manual
NY-series IPC Machine Controller Industrial Panel PC / Industrial Box PC Built-in
EtherCAT Port User’s Manual
Software user's manual for the connected CPU Unit or Industrial PC
User's manual for the built-in EtherCAT port on the connected CPU Unit
or Industrial PC
Software User's Manual
Built-in EtherCAT port
• This user's manual may omit manual names and manual numbers in places that refer to the user's
manuals for Communications Coupler Units. If you will use a Communications Coupler Unit, refer to
Related Manuals on page 27 to identify the manual for your Unit.
NX-series IO-Link Master Unit User’s Manual (W567)
9
Manual Structure
10
NX-series IO-Link Master Unit User’s Manual (W567)
Terms and Conditions Agreement
Terms and Conditions Agreement
Warranty, Limitations of Liability
Warranties
Exclusive Warranty
Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in
writing by Omron). Omron disclaims all other warranties, express or implied.
Limitations
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF
THE PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based
on infringement by the Products or otherwise of any intellectual property right.
Buyer Remedy
Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form originally
shipped with Buyer responsible for labor charges for removal or replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal
to the purchase price of the non-complying Product; provided that in no event shall Omron be
responsible for warranty, repair, indemnity or any other claims or expenses 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. Return of
any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies
shall not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice, recommendations or information given orally or in
writing, are not to be construed as an amendment or addition to the above warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY
WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT,
WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on
which liability is asserted.
NX-series IO-Link Master Unit User’s Manual (W567)
11
Terms and Conditions Agreement
Application Considerations
Suitability of Use
Omron Companies shall not be responsible for conformity with any standards, codes or regulations
which apply to the combination of the Product in the Buyer’s application or use of the Product. At
Buyer’s request, Omron will provide applicable third party certification documents identifying ratings
and limitations of use which apply to the Product. This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use. Buyer shall be solely responsible for determining appropriateness of
the particular Product with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT 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 PRODUCT(S) IS PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
Programmable Products
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or
any consequence thereof.
Disclaimers
Performance Data
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for
the user in determining suitability and does not constitute a warranty. It may represent the result of
Omron’s test conditions, and the user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
Change in Specifications
Product specifications and accessories may be changed at any time based on improvements and other
reasons. It is our practice to change part numbers when published ratings or features are changed, or
when significant construction changes are made. However, some specifications of the Product may be
changed without any notice. When in doubt, special part numbers may be assigned to fix or establish
key specifications for your application. Please consult with your Omron’s representative at any time to
confirm actual specifications of purchased Product.
12
Errors and Omissions
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions.
NX-series IO-Link Master Unit User’s Manual (W567)
Safety Precautions
WARNING
Caution
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury. 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.
Definition of Precautionary Information
The following notation is used in this manual to provide precautions required to ensure safe usage of an
NX-series IO-Link Master Unit.
The safety precautions that are provided are extremely important to safety. Always read and heed the
information provided in all safety precautions.
The following notation is used.
Safety Precautions
Symbols
The circle and slash symbol indicates operations that you must not do.
The specific operation is shown in the circle and explained in text.
This example indicates prohibiting disassembly.
The triangle symbol indicates precautions (including warnings).
The specific operation is shown in the triangle and explained in text.
This example indicates a precaution for electric shock.
The triangle symbol indicates precautions (including warnings).
The specific operation is shown in the triangle and explained in text.
This example indicates a general precaution.
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.
NX-series IO-Link Master Unit User’s Manual (W567)
13
Safety Precautions
WARNING
Warnings
During Power Supply
Do not touch the terminal section while power is ON.
Electric shock may occur.
Do not attempt to take any Unit apart.
In particular, high-voltage parts are present in Units that supply power while power is supplied or immediately after power is turned OFF. Touching any of these parts may result in
electric shock. There are sharp parts inside the Unit that may cause injury.
Fail-safe Measures
Provide safety measures in external circuits to ensure safety in the system if an abnormality
occurs due to malfunction of the CPU Unit, Industrial PC, other Units, or slaves or due to
other external factors affecting operation.
Not doing so may result in serious accidents due to incorrect operation.
Emergency stop circuits, interlock circuits, limit circuits, and similar safety measures must
be provided in external control circuits.
The CPU Unit or Industrial PC will turn OFF all outputs from Output Units in the following
cases. The remote I/O slaves will operate according to the settings in the slaves.
• If a power supply error occurs.
• If the power supply connection becomes faulty.
• If a CPU watchdog timer error or CPU reset occurs.
• If a Controller error in the major fault level occurs.
• While the CPU Unit is on standby until RUN mode is entered after the power is turned ON
External safety measures must be provided to ensure safe operation of the system in such
cases.
The outputs may remain ON or OFF due to deposition or burning of the output relays or
destruction of the output transistors. As a countermeasure for such problems, external
safety measures must be provided to ensure safe operation of the system.
If external power supplies for slaves or other devices are overloaded or short-circuited, the
voltage will drop, outputs will turn OFF, and the system may be unable to read inputs. Provide external safety measures in control with monitoring of external power supply voltage
as required so that the system operates safely in such a case.
You must take fail-safe measures to ensure safety in the event of incorrect, missing, or
abnormal signals caused by broken signal lines, momentary power interruptions, or other
causes.
Not doing so may result in serious accidents due to incorrect operation.
14
NX-series IO-Link Master Unit User’s Manual (W567)
Voltage and Current Inputs
Caution
Make sure that the voltages and currents that are input to the Units and slaves are within
the specified ranges.
Inputting voltages or currents that are outside of the specified ranges may cause accidents
or fire.
Transferring
Always confirm safety at the destination node before you transfer Unit configuration information, parameters, settings, or other data from tools such as the Sysmac Studio.
The devices or machines may operate unexpectedly, regardless of the operating mode of
the Controller.
Cautions
Safety Precautions
Wiring
When you connect a computer or other peripheral device to a Communications Coupler
Unit that has a non-isolated DC power supply, either ground the 0-V side of the external
power supply (i.e. Unit power supply) or do not ground it at all.
If the peripheral devices are grounded incorrectly, the external power supply (i.e. Unit
power supply) may be short-circuited.
Never ground the 24-V side of the power supply, as shown in the following figure.
NX Unit power
supply
0 V
Peripheral device
(e.g., computer)
Communications Coupler Unit
Non-isolated DC power
supply (internal power
supply circuit)
Peripheral device
cable
24 V
Be sure that all terminal screws and cable connector screws are tightened to the torque
specified in the relevant manuals. The loose screws may result in fire or malfunction.
NX-series IO-Link Master Unit User’s Manual (W567)
Ground terminal
Unit power
supply
15
Safety Precautions
Online Editing
Execute online editing only after confirming that no adverse effects will be caused by deviations in the timing of I/O. If you perform online editing, the task execution time may exceed
the task period, I/O may not be refreshed with external devices, input signals may not be
read, and output timing may change.
16
NX-series IO-Link Master Unit User’s Manual (W567)
Precautions for Safe Use
Transporting
• When transporting any Unit, use the special packing box for it.
Also, do not subject the Unit to excessive vibration or shock during transportation.
• Do not drop any Unit or subject it to abnormal vibration or shock.
Doing so may result in Unit malfunction or burning.
Mounting
• Mount terminal blocks and connectors only after checking the mounting location carefully.
• Be sure that the terminal blocks, expansion cables, and other items with locking devices are properly
locked into place.
Precautions for Safe Use
Installation
• Do not apply labels or tape to the Unit. When the Unit is installed or removed, adhesive or scraps
may adhere to the pins in the NX bus connector, which may result in malfunctions.
• Do not touch the pins in the NX bus connector on the Unit. Dirt may adhere to the pins in the NX bus
connector, which may result in malfunctions.
NGNG
Example: NX Unit (12 mm width)
NX-series IO-Link Master Unit User’s Manual (W567)
17
Precautions for Safe Use
Restricted
region (shaded
portion)
Up
Down
• Do not write on an NX Unit with ink within the restricted region that is shown in the following figure.
Also do not get this area dirty. When the Unit is installed or removed, ink or dirt may adhere to the
pins in the NX bus connector, which may result in malfunctions in the CPU Rack or Slave Terminal.
Refer to the user's manual for the connected CPU Unit or Communications Coupler Unit for details
on the restricted region on the CPU Unit or Communications Coupler Unit.
• For the installation orientations in the following figure, support the cables, e.g., with a duct, so that the
End Plate on the bottom is not subjected to the weight of the cables. The weight of the cables may
cause the bottom End Plate to slide downward so that the Slave Terminal is no longer secured to the
DIN Track, which may result in malfunctions.
18
NX-series IO-Link Master Unit User’s Manual (W567)
Precautions for Safe Use
NGOK
NGNG
Wiring
• Double-check all switches and other settings and double-check all wiring to make sure that they are
correct before turning ON the power supply.
• Use the correct wiring parts and tools when you wire the system.
• Do not pull on the cables or bend the cables beyond their natural limit. Also, do not place heavy
objects on top of the cables or other wiring lines. Doing so may break the cable.
• When wiring or installing the Units, do not allow metal fragments to enter the Units.
• Do not press the flat-blade screwdriver straight into the release holes on a screwless clamping terminal block. Doing so may damage the terminal block.
• When you insert a flat-blade screwdriver into a release hole on a screwless clamping terminal block,
press it down with a force of 30N or less. Applying excessive force may damage the terminal block.
• Do not incline or twist the flat-blade screwdriver while it is in a release hole on a screwless clamping
terminal block. Doing so may damage the terminal block.
• If you use reed switches for the input contacts for AC Input Units, use switches with an allowable current of 1 A or greater. If the capacity of the reed switches is too low, inrush current may fuse the contacts.
• Use crimp terminals for wiring the M3 screw terminal blocks. Do not connect bare stranded wires
directly to the M3 screw terminal blocks.
Power Supply Design
• Use all Units within the I/O power supply ranges that are given in the specifications.
• Use the I/O power supply current for the CPU Rack of the NX-series NX1P2 CPU Unit at 4 A or less.
Using the currents that are outside of the specifications may cause failure or damage.
• Supply sufficient power according to the contents of this manual.
• Use the power supply voltage that is specified in this manual.
• Do not apply voltages that exceed the rated value to any Input Unit.
• Do not apply voltages or connect loads to the Output Units or slaves in excess of the maximum ratings.
• Inrush current occurs when the power supply is turned ON. When selecting fuses or breakers for
external circuits, consider their fusing and detection characteristics as well as the above precautions
and allow sufficient margin in shut-off performance.
• Install external breakers and take other safety measures against short-circuiting and overcurrents in
external wiring.
NX-series IO-Link Master Unit User’s Manual (W567)
19
Precautions for Safe Use
Turning ON the Power Supply
• When you set the Operating Mode at Startup, confirm that no adverse effect will occur in the system.
Actual Operation
• Before you start operation, always register the NX Units that are connected to the Communications
Coupler Unit in the host communications master as the Unit Configuration Information.
• Check the user program, data, and parameter settings for proper execution before you use them for
actual operation.
• If you change the fail-soft operation setting, the output status when the error occurs may also change.
Confirm safety before you change the fail-soft operation setting.
• If you use fail-soft operation, write programming to determine whether Unit I/O data is valid. Without
such programming, the user program cannot distinguish between Units for which I/O refreshing is
continued and Units for which I/O refreshing is stopped.
Turning OFF the Power Supply
• Do not disconnect the cable or turn OFF the power supply to the Controller or a Slave Terminal when
downloading data or the user program from Support Software.
• Always turn OFF the external power supply to the Units before attempting any of the following.
Mounting or removing an NX Unit, Communications Coupler Unit, CPU Unit, or Industrial PC
Assembling Units
Setting DIP switches or rotary switches
Connecting or wiring cables
Attaching or removing terminal blocks or connectors
Units that supply power continue to supply power to the Units for up to several seconds after the
power supply is turned OFF. The PWR indicator remains lit as long as power is supplied. Confirm that
the PWR indicator is not lit before you perform any of the above.
Operation
• Confirm that the controlled system will not be adversely affected before you perform any of the following operations.
Changing the operating mode of the CPU Unit or Industrial PC (including changing the setting of the
Operating Mode at Startup)
Changing the user program or settings
Changing set values or present values
Forced refreshing
• Always sufficiently check the safety at the connected devices before you change the settings of a
slave or Unit.
20
General Communications
• Do not exceed the ranges that are given in the specifications for the communications distance and
number of connected Units.
• Refer to the user’s manual for the Communications Coupler Unit for precautions for the safe use of
communications with the connected Communications Coupler Unit.
NX-series IO-Link Master Unit User’s Manual (W567)
Precautions for Safe Use
Unit Replacement
• When you replace a Unit, start operation only after you transfer the settings and variables that are
required for operation to the new Unit.
• Default values of I/O allocation differ between the IO-Link Master Unit with unit version 1.0 and one
with unit version 1.1.
If you replace a Unit with unit version 1.0 with a Unit with unit version 1.1 or later, set the I/O allocation to the same setting as the Unit with unit version 1.0. Replacing the Unit without changing the I/O
allocation may result in erroneous output, erroneous input, and a change in the timing of I/O.
Disposal
• Dispose of the product according to local ordinances as they apply.
NX-series IO-Link Master Unit User’s Manual (W567)
21
Precautions for Correct Use
Precautions for Correct Use
Storage, Mounting, and Wiring
• Follow the instructions in this manual to correctly perform installation and wiring.
• Do not operate or store the Units in the following locations. Doing so may result in malfunction, in
operation stopping, or in burning.
Locations subject to direct sunlight
Locations subject to temperatures or humidity outside the range specified in the specifications
Locations subject to condensation as the result of severe changes in temperature
Locations subject to corrosive or flammable gases
Locations subject to dust (especially iron dust) or salts
Locations subject to exposure to water, oil, or chemicals
Locations subject to shock or vibration
• Take appropriate and sufficient countermeasures during installation in the following locations.
Locations subject to strong, high-frequency noise
Locations subject to static electricity or other forms of noise
Locations subject to strong electromagnetic fields
Locations subject to possible exposure to radioactivity
Locations close to power lines
• Before touching a Unit, be sure to first touch a grounded metallic object in order to discharge any
static build-up.
• Use the rated power supply voltage for the Units that supply power. Take appropriate measures to
ensure that the specified power with the rated voltage and frequency is supplied in places where the
power supply is unstable.
• Install the Units away from sources of heat and ensure proper ventilation. Not doing so may result in
malfunction, in operation stopping, or in burning.
• Do not allow foreign matter to enter the openings in the Unit. Doing so may result in Unit burning,
electric shock, or failure.
Actual Operation
• If you change the event level of an error, the output status when the error occurs may also change.
Confirm safety before you change an event level.
Turning OFF the Power Supply
• Do not turn OFF the power supply while data is being transferred.
• Do not turn OFF the power supply while parameters are being written to the CPU Unit, Communications Coupler Unit, or NX Units.
General Communications
• Refer to the user’s manual for the Communications Coupler Unit for precautions for the correct use of
communications with the connected Communications Coupler Unit.
22
NX-series IO-Link Master Unit User’s Manual (W567)
Regulations and Standards
Conformance to EU Directives
Applicable Directives
• EMC Directives
• Low Voltage Directive
Concepts
EMC Directives
OMRON devices that comply with EC Directives also conform to the related EMC standards so that
they can be more easily built into other devices or the overall machine. The actual products have
been checked for conformity to EMC standards.*1
Whether the products conform to the standards in the system used by the customer, however, must
be checked by the customer. EMC-related performance of the OMRON devices that comply with EU
Directives will vary depending on the configuration, wiring, and other conditions of the equipment or
control panel on which the OMRON devices are installed. The customer must, therefore, perform
the final check to confirm that devices and the overall machine conform to EMC standards.
Regulations and Standards
*1. Applicable EMC (Electromagnetic Compatibility) standards are as follows:
EMS (Electromagnetic Susceptibility): EN 61131-2
EMI (Electromagnetic Interference): EN 61131-2 (Radiated emission: 10-m regulations).
Low Voltage Directive
Always ensure that devices operating at voltages of 50 to 1,000 VAC and 75 to 1,500 VDC meet the
required safety standards. The applicable directive is EN 61010-2-201.
Conformance to EU Directives
The NX-series Units comply with EU Directives. To ensure that the machine or device in which the
NX-series Units are used complies with EU Directives, the following precautions must be observed.
• The NX-series Units must be installed within a control panel.
• The SELV requirements must be satisfied for the DC power supplies that are connected as the
Unit power supplies and I/O power supplies for the NX-series Units.
For CPU Racks with NX-series NX1P2 CPU Units, we recommend that you use OMRON
S8VK-S-series Power Supplies. For Slave Terminals, we recommend that you use OMRON
S8JX-series Power Supplies. EMC standard compliance was confirmed for these recommended
Power Supplies.
• NX-series Units that comply with EU Directives also conform to the Common Emission Standard
(EN 61131-2). Radiated emission characteristics (10-m regulations) may vary depending on the
configuration of the control panel used, other devices connected to the control panel, wiring, and
other conditions.
You must therefore confirm that the overall machine or equipment in which the NX-series Units
are used complies with EU Directives.
• You must use power supplies with an output hold time of 10 ms or longer for the DC power supplies that are connected as the Unit power supplies and I/O power supplies for the NX-series
Units.
NX-series IO-Link Master Unit User’s Manual (W567)
23
Regulations and Standards
• This is a Class A product (for industrial environments). In a residential environment, it may cause
radio interference. If radio interference occurs, the user may be required to take appropriate measures.
Conformance to UL and CSA Standards
Some NX-series products comply with UL and CSA standards. If you use an NX-series product that
complies with UL or CSA standards and the machinery or system in which you use the NX-series product must also comply with the standards, refer to the Instruction Sheet that is provided with the product.
The Instruction Sheet provides the application conditions for complying with the standards.
Conformance to Shipbuilding Standards
Some NX-series products comply with shipbuilding standards. If you use an NX-series product that
complies with shipbuilding standards and the machinery or system in which you use the NX-series
product must also comply with the standards, consult with your OMRON representative. Application
conditions are defined according to the installation location. Application may not be possible for some
installation locations. For shipbuilding standard usage conditions, refer to Conformance to Shipbuilding Standards in the user’s manual for the Communications Coupler Unit or CPU Unit that the NX Units are
connected to.
Conformance to KC Standards
Observe the following precaution if you use NX-series Units in Korea.
Class A Device (Broadcasting Communications Device for Office Use)
This device obtained EMC registration for office use (Class A), and it is intended to be used in places
other than homes.
Sellers and/or users need to take note of this.
Software Licenses and Copyrights
This product incorporates certain third party software. The license and copyright information associated
with this software is available at http://www.fa.omron.co.jp/nj_info_e/.
24
NX-series IO-Link Master Unit User’s Manual (W567)
Unit Versions
Notched
area
Unit
specifications
LOT No.
Unit version
Lot number
Unit model number
Lot number and unit version
This section describes the notation that is used for unit versions, the confirmation method for unit versions, and the relationship between unit versions and Support Software versions.
Unit Versions
A “unit version” has been introduced to manage the Units in the NX Series according to differences in
functionality accompanying Unit upgrades.
An example is provided below for Communications Coupler Units and NX Units. For the notation that is
used for the unit versions of CPU Units or Industrial PCs and the confirmation method for unit versions,
refer to the user's manual for each Unit.
Notation of Unit Versions on Products
Unit Versions
The unit version is given with the Unit specifications on the side of the Unit or in the notched area.
The following information is provided in the Unit specifications on the Unit.
Unit model numberGives the model of the Unit.
NX-series IO-Link Master Unit User’s Manual (W567)
NameFunction
25
Unit Versions
Unit versionGives the unit version of the Unit.
Lot numberGives the lot number of the Unit.
The following information is provided in the notched area on the Unit.
NameFunction
Lot number and
unit version
Confirming Unit Versions with the Support Software
If your NX Unit is connected to a CPU Unit, refer to the user’s manual of the connected CPU Unit for the
confirmation method for the unit version of the NX Unit.
NameFunction
DDMYY: Lot number, : Used by OMRON.
“M” gives the month (1 to 9: January to September, X: October, Y: November, Z: December)
Gives the lot number and unit version of the Unit.
• DDMYY: Lot number, : Used by OMRON.
“M” gives the month (1 to 9: January to September, X: October, Y: November, Z: December)
•1: Unit version
The decimal portion of the unit version is omitted. (It is provided in the Unit specifications.)
If your NX Unit is connected to a Communications Coupler Unit, refer to the user’s manual of the connected Communications Coupler Unit for the confirmation method for the unit version of the Communications Coupler Unit and NX Unit.
Unit Versions and Support Software Versions
The functions that are supported depend on the unit version of the Unit. The version of Support Software that supports the functions that were added for an upgrade is required to use those functions.
Refer to A-5 Version Information with CPU Units on page A-36 or A-6 Version Information with Commu-nications Coupler Units on page A-38 for the functions that are supported by each unit version.
26
NX-series IO-Link Master Unit User’s Manual (W567)
Related Manuals
The following table describes terms used for NX Units. Refer to the IO-Link System User’s Manual (Cat.
No. W570) for information on terms used for IO-Link Master Units.
ware information,
wiring, and specifications for the
NX-series IO-Link
Master Unit and
checking a list of
NX objects.
W570NX-ILM400
GX-ILM08C
W488GX-ID
GX-OD
GX-OC
GX-MD
GX-AD
GX-DA
GX-EC
GX-ILM
XWT-ID
XWT-OD
W525NX-Referencing lists of
W523NX-PD1
NX-PF0
NX-PC0
NX-TBX01
Learning everything from an introduction to details
about IO-Link Systems, including
mainly software
information common to all IO-Link
masters, Support
Software operating methods, and
troubleshooting.
Learning hardware information,
wiring, and specifications for the
GX-series IO-Link
Master Unit and
checking a list of
objects
(W488-E1-05 or
later). Or, learning
how to use
GX-series EtherCAT Slave Terminals.
the data that is
required to configure systems with
NX-series Units
Learning how to
use NX-series
System Units
Describes part names, functions, installation, and wiring and also provides
tables of specifications and NX objects
for the NX-series IO-Link Master Unit.
Provides an overview of IO-Link Systems and explains the system configuration, communications specifications,
communications methods, I/O data,
parameters, models, Support Software,
and troubleshooting.
Refer to the following manuals for the
individual IO-Link Master Units for
hardware information and specifications specific to each Master Unit and a
list of the objects for each Master Unit.
NX-series IO-Link Master Unit: W568
GX-series IO-Link Master Unit:
W488-E1-05 or later
Describes part names, functions, installation, and wiring and also provides
tables of specifications and objects for
the GX-series IO-Link Master Unit
(W488-E1-05 or later). Also describes
the hardware, setup methods, and
functions of the EtherCAT Remote I/O
Terminals.
Lists of the power consumptions,
weights, and other NX Unit data that is
required to configure systems with
NX-series Units are provided.
The hardware and functions of the
NX-series System Units are described.
Related Manuals
NX-series IO-Link Master Unit User’s Manual (W567)
Learning about the
operating procedures and functions of the
Sysmac Studio.
operating procedures and functions of the NX-IO
Configurator.
Learning about the
errors that may be
detected in an
NJ/NX-series Controller.
Learning about the
errors that may be
detected in an
NY-series Industrial PC.
use an NX-series
EtherCAT Coupler
Unit and EtherCAT Slave Terminals
use an NX-series
EtherNet/IP Coupler Unit and EtherNet/IP Slave
Terminals.
specifications of
the NX701 CPU
Units, including
introductory information, designing,
installation, and
maintenance.
Mainly hardware
information is provided.
Describes the operating procedures of
the Sysmac Studio.
Describes the operating procedures of
the NX-IO Configurator.
Concepts on managing errors that may
be detected in an NJ/NX-series Controller and information on individual
errors are described.
Concepts on managing errors that may
be detected in an NY-series Controller
and information on individual errors are
described.
The following items are described: the
overall system and configuration methods of an EtherCAT Slave Terminal
(which consists of an NX-series EtherCAT Coupler Unit and NX Units), and
information on hardware, setup, and
functions to set up, control, and monitor
NX Units through EtherCAT.
The following items are described: the
overall system and configuration methods of an EtherNet/IP Slave Terminal
(which consists of an NX-series EtherNet/IP Coupler Unit and NX Units), and
information on hardware, setup, and
functions to set up, control, and monitor
NX Units.
An introduction to the entire NX701
CPU Unit system is provided along with
the following information on the CPU
Unit.
• Features and system configuration
• Overview
• Part names and functions
• General specifications
• Installation and wiring
• Maintenance and Inspection
28
NX-series IO-Link Master Unit User’s Manual (W567)
NJ/NX-series CPU Unit
Built-in EtherCAT Port
User's Manual
NJ/NX-series CPU Unit
Motion Control User's
Manual
NY-series IPC Machine
Controller Industrial
Panel PC / Industrial
Box PC Built-in EtherCAT® Port User’s Manual
NJ/NX-series Instructions Reference Manual
NY-series Instructions
Reference Manual
W505NX701-
NX1P2-
NJ501-
NJ301-
NJ101-
W507NX701-
NJ501-
NJ301-
NJ101-
W562NY532-1
NY512-1
W502NX701-
NX1P2-
NJ501-
NJ301-
NJ101-
W560NY532-1
NY512-1
Using the built-in
EtherCAT port on
an NJ/NX-series
CPU Unit.
Learning about
motion control settings and programming concepts.
Using the built-in
EtherCAT port in
an NY-series
Industrial PC.
Learning detailed
specifications on
the basic instructions of an
NJ/NX-series CPU
Unit.
Learning detailed
specifications on
the basic instructions of an
NY-series Industrial PC.
Information on the built-in EtherCAT
port is provided.
This manual provides an introduction
and provides information on the configuration, features, and setup.
The settings and operation of the CPU
Unit and programming concepts for
motion control are described. When
programming, use this manual together
with the NJ-series CPU Unit Hardware
User's Manual (Cat. No. W500) or
NX-series CPU Unit Hardware User's
Manual (Cat. No. W535) and with the
NJ/NX-series CPU Unit Software
User's Manual (Cat. No. W501).
Information on the built-in EtherCAT
port is provided.
This manual provides an introduction
and provides information on the configuration, features, and setup.
The instructions in the instruction set
(IEC 61131-3 specifications) are
described.
The instructions in the instruction set
(IEC 61131-3 specifications) are
described.
30
NX-series IO-Link Master Unit User’s Manual (W567)
Terminology
The following table describes terms used for NX Units. Refer to the IO-Link System User’s Manual (Cat.
No. W570) for information on terms used for IO-Link Master Units.
Terminology
Term
CAN application protocol over EtherCAT
Communications Coupler Units---The generic name of an interface unit for remote I/O communications on
CPU Rack---A Rack with a CPU Unit mounted on it. With an NX-series NX1P2 CPU
device profile---A collection of device dependent information and functionality providing
device variable---A variable that is used by an NX-series CPU Unit or an NY-series Indus-
distributed clockDCClock distribution mechanism used to synchronize EtherCAT slaves and
EtherCAT slave informationESIAn XML file that contains setting information for an EtherCAT slave.
I/O map settings---Settings that assign variables to I/O ports. Assignment information
I/O port---A logical interface that is used by the NX-series CPU Unit or NY-series
I/O refreshing---Cyclic data exchange with external devices that is performed with prede-
index---Address of an object within an application process.
network configuration information---The EtherCAT network configuration information held by the EtherCAT
NX bus---The NX-series internal bus.
object---An abstract representation of a particular component within a device,
object dictionaryODData structure that contains description of data type objects, communi-
Operational---A state in EtherCAT communications where SDO communications and
PDO communications---An acronym for process data communications.
Pre-Operational---A state in EtherCAT communications where only SDO communications
primary periodic task---The task with the highest priority.
process data---Collection of application objects designated to be downloaded cyclically
process data communications---One type of EtherCAT communications in which process data objects
process data objectPDOA structure that describes the mappings of parameters that have one or
Safe-Operational---A state in EtherCAT communications where only SDO communications
Abbreviation
CoEA CAN application protocol service implemented on EtherCAT.
a network between NX Units and a host network master.
Unit, NX Units are mounted to the CPU Unit and End Covers are
mounted on it.
consistency between similar devices of the same device type.
trial PC to access a specific device through an I/O port. EtherCAT slave
process data is assigned to these variables. With an NX-series NX1P2
CPU Unit, the I/O data is assigned to NX Units in the CPU Unit. Connectable devices are accessed by directly reading and writing device
variables from user applications on the CPU Unit or Industrial PC.
the EtherCAT master.
between I/O ports and variables.
Industrial PC to exchange data with an external device (slave or Unit).
termined memory addresses.
master.
which consists of data, parameters, and methods.
cation objects and application objects.
I/O are possible.
are possible with the slaves, i.e., no I/O can be performed.
or acyclically for the purpose of measurement and control.
(PDOs) are used to exchange information cyclically and in realtime. This
is also called PDO communications.
more process data entities.
and reading input data from slaves are possible. Outputs from slaves are
not performed.
Description
NX-series IO-Link Master Unit User’s Manual (W567)
31
Terminology
Term
SDO communications---One type of EtherCAT communications in which service data objects
service data objectSDOCoE asynchronous mailbox communications where all objects in the
Slave Terminal---A building-block remote I/O terminal to which a Communications Cou-
subindex---Sub-address of an object within the object dictionary.
task period---The interval at which the primary periodic task or a periodic task is exe-
Abbreviation
Description
(SDOs) are used to transmit information whenever required.
object dictionary can be read and written.
pler Unit and NX Units are mounted
cuted.
32
NX-series IO-Link Master Unit User’s Manual (W567)
Revision History
Cat. No.
W567-E1-05
Revision code
A manual revision code appears as a suffix to the catalog number on the front and back covers of the
manual.
Revision codeDateRevised content
01July 2016Original production
02October 2016• Made revisions accompanying the addition of NY-series IPC Machine
03February 2017Corrected mistakes.
04June 2017• Made changes accompanying the upgrade of the NX-ECC203 unit ver-
05October 2017• Made changes accompanying the upgrade of the NX-ILM400 unit ver-
Revision History
Controller Industrial Panel PCs and Industrial Box PCs.
• Made revisions accompanying the addition of NX-series NX1P2 CPU
Units.
• Corrected mistakes.
sion to version 1.5.
• Made changes accompanying the upgrade of the NX-EIC202 unit version to version 1.2.
• Corrected mistakes.
sion to version 1.1.
NX-series IO-Link Master Unit User’s Manual (W567)
33
Revision History
34
NX-series IO-Link Master Unit User’s Manual (W567)
1
2
3
4
5
6
7
8
A
1I
2
3
4
5
6
7
8
A
Features and System
Configuration
Specifications
Part Names and
Functions
Installation and
Wiring
I/O Refreshing
I
Troubleshooting
Types and Functions of IO-Link Master Units
Inspection and Maintenance
Appendices
Index
Sections in this Manual
Sections in this Manual
NX-series IO-Link Master Unit User’s Manual (W567)
35
Sections in this Manual
36
NX-series IO-Link Master Unit User’s Manual (W567)
Features and System Configuration
This section describes the NX system configuration and the features of IO-Link Master
Units.
1-1 Features of the IO-Link Master Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
NX-series IO-Link Master Unit User’s Manual (W567)
1 - 1
1 Features and System Configuration
1-1Features of the IO-Link Master Units
This section describes the features of IO-Link Master Units.
1-1-1Introduction
An IO-Link Master Unit is an NX Unit that has I/O processing functions for IO-Link communications with
IO-Link devices and I/O processing functions for digital I/O data (ON/OFF signals) with non-IO-Link
devices.
1-1-2Features
The NX-series IO-Link Master Unit has the following features.
Connectable to CPU Units and Communications Coupler Units
NX-series IO-Link Master Units are NX Units. They can be connected to the following Units.
• NX-series NX1P2 CPU Unit
• NX-series Communications Coupler Units
If you use both CPU Units and Communications Coupler Units, you can use the same NX Unit mounting, wiring, and setup methods to reduce design costs.
*1
Reading of Control Signals, Status, Wiring, and Power Supply Status
of IO-Link Devices from the Controller
The controller can read the following information as IO-Link Master Unit status.
• Signals and status of the IO-Link devices (examples for photoelectric sensor: unstable detection and
sensor errors)
• Disconnections, short-circuits, I/O power ON status, etc., between the IO-Link master and devices
Inputting Digital Signals from Sensors and Other IO-Link Devices
during IO-Link Communications
With IO-Link devices that support digital inputs for pin 2,*1 the IO-Link Master Unit can simultaneously
perform both IO-Link communications and receive the digital inputs.
This enables rapid input during IO-Link communications.
*1. Digital inputs that use pin 2 of IO-Link Master Unit ports.
1 - 2
Combining IO-Link Devices with General-purpose Sensors and
Actuators
• You can connect a combination of IO-Link devices and non-IO-Link devices, such as general-purpose sensors and actuators, to the same IO-Link Master Unit. This allows a single master to function
as an IO-Link communications terminal, a digital input terminal, and a digital output terminal.
• When you change from an existing system to an IO-Link System, there is no need to replace the
cables of existing general-purpose sensors or actuators.
NX-series IO-Link Master Unit User’s Manual (W567)
1 Features and System Configuration
Checking for Incorrect Connections of IO-Link Devices When
IO-Link Communications Start
You can register in advance ID information on the IO-Link devices that should connect to the ports of
the IO-Link Master Unit to enable verifying the connections of the IO-Link devices when IO-Link communications start. This lets you reduce commissioning and maintenance work.
1-1 Features of the IO-Link Mas-
ter Units
Easy Replacement of IO-Link Devices
Simple Backup and Restoration of IO-Link Device Parameters
For OMRON’s IO-Link Master Units, you can back up parameter settings of the IO-Link devices in the
IO-Link Master Unit.
When you replace IO-Link devices, you can automatically restore those backup parameters in the new
IO-Link devices.
This eliminates the need for software tools when replacing IO-Link devices.
Status on Noise Influence on Cables Connected to IO-Link Devices
OMRON's IO-Link Master Units record the total number of lost frames in cyclic communications. You
can use this value to check for the influences of noise and other problems.
For other features, refer to the IO-Link System User’s Manual (Cat. No. W570).
1
1-1-2 Features
NX-series IO-Link Master Unit User’s Manual (W567)
1 - 3
1 Features and System Configuration
(A) NX-series CPU Unit
EtherCAT Slave Terminal
(D) Support Software
Sysmac Studio
CX-ConfiguratorFDT
Built-in EtherCAT port
Connected to built-in
EtherNet/IP port.
(B) NX Units
● CPU Rack
NX1P2-
(C) End Cover
EtherCAT
NX Units
EtherCAT Coupler Unit
(E) ESI files
IODD files
.xml
IO-Link
devices
IO-Link
IO-Link
devices
IO-Link
1-2System Configuration
NX-series IO-Link Master Units are NX Units. They can be connected to the following Units.
• NX-series NX1P2 CPU Unit
• NX-series Communications Coupler Units
This section describes the system configuration for each type of Unit that an NX Unit can be connected
to.
1-2-1System Configuration with CPU Unit
The system configuration when an NX-series IO-Link Master Unit is connected to an NX-series NX1P2
CPU Unit is illustrated below.
You can connect the EtherCAT Slave Terminal to the built-in EtherCAT port on the CPU Unit. Refer to
1-2-2 System Configurations of Slave Terminals on page 1-5 for details on the system configuration of a
Slave Terminal.
1 - 4
NX-series IO-Link Master Unit User’s Manual (W567)
1 Features and System Configuration
LetterItemDescription
(A)NX-series NX1P2 CPU
Unit
(B)NX UnitsThe NX Units perform I/O processing with connected external devices. NX
IO-Link Master UnitIO-Link devices are connected to screwless clamping terminal blocks.
(C)End CoverThe End Cover is attached to the end of the CPU Rack.
(D)Sysmac Studio Support
Software
CX-ConfiguratorFDT
Support Software
(E)ESI (EtherCAT Slave
Information) file
IODD (IO Device
Description) files
This is the central control Unit in the Machine Automation Controller. It executes tasks and performs I/O refreshing and other processing for other
Units and slaves. NX Units can be connected to an NX1P2 CPU Unit.
Units exchange data with the CPU Unit during I/O refreshing. You can connect up to eight NX Units to an NX1P2 CPU Unit.
The Sysmac Studio runs on a personal computer and it is used to set up,
program, debug, and troubleshoot NJ/NX/NY-series Controllers.
With an NX1P2 CPU Unit, settings are made with the personal computer
connected to the built-in EtherNet/IP port.
The CX-ConfiguratorFDT is used to set the parameters of the IO-Link
devices.
The ESI file contains information that is unique to the EtherCAT Slave Terminal in XML format. You can load the ESI file into the Sysmac Studio to
easily allocate Slave Terminal process data and configure other settings.
The ESI files for OMRON EtherCAT slaves are already installed in the Sysmac Studio. You can obtain the ESI files for the latest models through the
Sysmac Studio’s automatic update function.
These files contain IO-Link device definitions.
The IODD files for OMRON’s IO-Link devices are automatically installed
when you install CX-ConfiguratorFDT. If you use IO-Link devices from
another company, you must install the IODD files for the IO-Link devices of
that company in CX-ConfiguratorFDT.
1-2 System Configuration
1
1-2-2 System Configurations of Slave Terminals
1-2-2System Configurations of Slave Terminals
Slave Terminal is a generic name for a building-block remote I/O slave that contains a group of NX
Units connected to a Communications Coupler Unit.
The NX Units can be flexibly combined with a Communications Coupler Unit to achieve the optimum
remote I/O slave for the application with less wiring, less work, and less space.
The following figure shows an example of the system configuration when an EtherCAT Coupler Unit is
used as a Communications Coupler Unit.
Refer to the user's manual for the connected Communications Coupler Unit for details on how to configure the system when any other type of Communications Coupler Unit is used.
NX-series IO-Link Master Unit User’s Manual (W567)
1 - 5
1 Features and System Configuration
(A) EtherCAT master
NJ/NX-series CPU Unit, NY-series Industrial PC,
or master from another company
(G) Communications cable
Ethernet cables
(B) NX Series
EtherCAT Coupler Unit
NX-ECC20
• EtherCAT Slave Terminal
(E) Support Software
*1
(F) ESI files
IODD files
(D) End Cover
(C) NX Units
EtherCAT port
Peripheral USB port
Connection to peripheral USB
port on EtherCAT Coupler Unit
IO-Link Master Unit
NX-ILM400
.xml
.xml
IO-Link
devices
IO-Link
(E) Support Software
(F) ESI files
IODD files
*1. The connection method for the Support Software depends on the model of the CPU Unit or Industrial PC.
1 - 6
NX-series IO-Link Master Unit User’s Manual (W567)
1 Features and System Configuration
Additional Information
1-2 System Configuration
Let-
ter
(A)
EtherCAT master
(B)EtherCAT Coupler UnitThe EtherCAT Coupler Unit serves as an interface for process data communi-
(C)NX UnitsThe NX Units perform I/O processing with connected external devices.
(D)End CoverThe End Cover is attached to the end of the Slave Terminal.
(E)
Support Software
(F)ESI (EtherCAT Slave
Information) file
IODD (IO Device
Description) files
(G)Communications cableUse a double-shielded cable with aluminum tape and braiding of Ethernet cat-
*1. An EtherCAT Slave Terminal cannot be connected to any of the OMRON CJ1W-NC81/82 Position Control
Units even though they can operate as EtherCAT masters.
*2. The term Support Software indicates software that is provided by OMRON. If you connect to a master from
another company, use the software tool corresponding to that master.
*3. Refer to 1-5 Support Software on page 1-10 for information on Support Software.
ItemDescription
*1
IO-Link Master UnitIO-Link devices are connected to screwless clamping terminal blocks.
*2 *3
Sysmac StudioThe Sysmac Studio runs on a personal computer and it is used to configure
CX-ConfiguratorFDT The CX-ConfiguratorFDT is used to set the parameters of the IO-Link devices.
The EtherCAT master manages the network, monitors the status of slaves,
and exchanges I/O data with slaves.
cations on the EtherCAT network between the NX Units and the EtherCAT
master.
The I/O data for the NX Units is accumulated in the EtherCAT Coupler Unit
and then all of the data is exchanged with the EtherCAT master at the same
time.
The EtherCAT Coupler Unit can also perform message communications (SDO
communications) with the EtherCAT master.
The NX Units perform process data communications with the EtherCAT master through the EtherCAT Coupler Unit.
the EtherCAT network and EtherCAT Slave Terminal, and to program, monitor,
and troubleshoot the Controllers.
The ESI file contains information that is unique to the EtherCAT Slave Terminal in XML format. You can load the ESI file into the Sysmac Studio to easily
allocate Slave Terminal process data and configure other settings.
The ESI files for OMRON EtherCAT slaves are already installed in the Sysmac
Studio. You can update the Sysmac Studio to get the ESI files for the most
recent models.
These files contain IO-Link device definitions.
The IODD files for OMRON’s IO-Link devices are automatically installed when
you install CX-ConfiguratorFDT. If you use IO-Link devices from another company, you must install the IODD files for the IO-Link devices of that company in
CX-ConfiguratorFDT.
egory 5 (100Base-TX) or higher, and use straight wiring.
1
1-2-2 System Configurations of Slave Terminals
If you are using the EtherNet/IP Coupler Unit with a CJ/CP/CS-series PLC or a controller from
another manufacturer, you can use the NX-IO Configurator as a Support Software. Refer to the
NX-IO Configurator Operation Manual (Cat. No. W585) for details on the NX-IO Configurator.
Refer to the IO-Link System User’ Manual (Cat. No. W570) for details on the system configuration of the IO-Link Master Unit using the EtherNet/IP Coupler Unit.
NX-series IO-Link Master Unit User’s Manual (W567)
1 - 7
1 Features and System Configuration
NNX -
Unit type
00
Number of ports
ILM: IO-Link Master Unit
4: 4 ports
1-3Model List
1-3-1Model Notation
The IO-Link Master Unit models are assigned based on the following rules.
1 - 8
NX-series IO-Link Master Unit User’s Manual (W567)
1-4List of Functions
Refer to the IO-Link System User’s Manual (Cat. No. W570) for the functions of IO-Link Master Units.
Refer to A-1 Data Sheet on page A-2 for the specifications of each model and for details on the functions.
1 Features and System Configuration
1-4 List of Functions
1
NX-series IO-Link Master Unit User’s Manual (W567)
1 - 9
1 Features and System Configuration
1-5Support Software
Refer to the IO-Link System User’s Manual (Cat. No. W570) for information on the Support Software
used for the IO-Link Master Units.
Refer to A-5 Version Information with CPU Units on page A-36 or A-6 Version Information with Commu-nications Coupler Units on page A-38 for information on the Support Software that can perform the settings of CPU Racks and Slave Terminals.
1 - 10
NX-series IO-Link Master Unit User’s Manual (W567)
Specifications
This section gives the general specifications and individual specifications of the IO-Link
Master Units.
NX-series IO-Link Master Unit User’s Manual (W567)
2 - 1
2 Specifications
2-1General Specifications
The general specifications of the IO-Link Master Unit are shown below.
ItemSpecification
Enclosure
Grounding methods
Ambient operating temperature
Ambient operating humidity
AtmosphereMust be free from corrosive gases.
Ambient storage tempera-
ture
Altitude2,000 m max.
Pollution degreePollution degree 2 or less: Conforms to JIS B 3502 and IEC 61131-2.
Operating environment
Applicable standards
*1. Varies with NX Unit Models. Refer to A-1 Data Sheet on page A-2 for the specifications of individual NX Units.
*2. Refer to the OMRON website (www.ia.omron.com) or ask your OMRON representative for the most recent ap-
plicable standards for each model.
Noise immunityConforms to IEC 61000-4-4, 2 kV (power supply line)
Overvoltage categoryCategory II: Conforms to JIS B 3502 and IEC 61131-2.
EMC immunity levelZone B
Vibration resistanceConforms to IEC 60068-2-6.
Shock resistance
Insulation resistance
Dielectric strength
*2
Mounted in a panel
Ground of 100 Ω or less
0 to 55°C
10 to 95% RH (with no icing or condensation)
-25 to 70°C (with no icing or condensation)
5 to 8.4 Hz with amplitude of 3.5 mm,
8.4 to 150 Hz, acceleration of 9.8 m/s
100 min each in X, Y, and Z directions (10 sweeps of 10 min each = 100
min total)
Conforms to IEC 60068-2-27, 147 m/s
directions
*1
*1
cULus: Listed (UL 61010-2-201), ANSI/ISA 12.12.01, EU: EN 61131-2,
RCM, and KC: KC Registration
2
2
, 3 times each in X, Y, and Z
2 - 2
NX-series IO-Link Master Unit User’s Manual (W567)
2 Specifications
2-2Individual Specifications
Refer to A-1 Data Sheet on page A-2 for the specifications of individual IO-Link Master Units.
2-2 Individual Specifications
2
NX-series IO-Link Master Unit User’s Manual (W567)
2 - 3
2 Specifications
2 - 4
NX-series IO-Link Master Unit User’s Manual (W567)
Part Names and Functions
This section describes the names and functions of the IO-Link Master Unit.
NX-series IO-Link Master Unit User’s Manual (W567)
3 - 1
3 Part Names and Functions
3-1Part Names
This section describes the names and functions of the components of the IO-Link Master Unit.
3-1-1IO-Link Master Unit
NX-ILM400
(C)(D)
(B)
(A)
(H)
Let-
ter
(A)Marker attachment loca-
tions
(B)NX bus connectorThis connector is used to connect each Unit.
(C)Unit hookup guidesThese guides are used to connect two Units.
(D)DIN Track mounting hooks These hooks are used to mount the NX Unit to a DIN Track.
(E)Protrusions for removing
the Unit
(F)IndicatorsThe indicators show the current operating status of the Unit.
(G)Terminal blockThe terminal block is used to connect external devices.
(H)Unit specificationsThe specifications of the Unit are given.
NameFunction
(C)
(C)
The locations where markers are attached. The markers made by OMRON
are installed for the factory setting. Commercially available markers can also
be installed.
Refer to 4-1-2 Attaching Markers on page 4-4
The protrusions to hold when removing the Unit.
Refer to 3-2 Indicators on page 3-4
The number of terminals depends on the type of Unit.
(E)
(F)
(G)
(C)(E)
(B)
3 - 2
NX-series IO-Link Master Unit User’s Manual (W567)
3 Part Names and Functions
(B)
16-terminal type
(C)
(A)
A1
A2
A3
A4
A5
A6
A7
A8
B1
B2
B3
B4
B5
B6
B7
B8
Terminal Blocks
The NX-TBA162 Screwless Clamping Terminal Block is used for the 16-pin terminal block.
NX-TBA162
3-1 Part Names
3
3-1-1 IO-Link Master Unit
Let-
ter
(A)Terminal number indi-
cations
(B)Release holesInsert a flat-blade screwdriver into these holes to connect and remove the
(C)Terminal holesThe wires are inserted into these holes.
NameFunction
Terminal numbers for which A and B indicate the column, and 1 to 8 indicate
the line are displayed.
The terminal number is a combination of column and line, i.e. A1 to A8 and
B1 to B8.
The terminal number indications are the same regardless of the number of
terminals on the terminal block.
wires.
NX-series IO-Link Master Unit User’s Manual (W567)
3 - 3
3 Part Names and Functions
NX-ILM400
(A)
(B)
C
E
CQ
3-2Indicators
There are indicators on the IO-Link Master Unit to show the current operating status of the Unit, the
IO-Link communications status, and the signal I/O status.
NX Units (12 mm Width)
Let-
ter
(A)Model number indicationThe model number of the NX Unit is displayed.
(B)IndicatorsThe indicators show the current operating status of the NX Unit or the signal
NameFunction
The following section describes the specifications of each indicator.
3-2-1TS Indicator
The meanings of the indicator are given below.
ColorStatusDescription
GreenLit• The Unit is operating normally.
RedLitA hardware failure, WDT error, or other fatal error that is common to
Flashing at 2-s
intervals
For the NX-ILM400, ILM400 is given.
The colors of NX Units indicate their I/O specifications.
• IO-Link Master Unit: Green
I/O status.
• The Unit is ready for I/O refreshing.
Initializing (changing from Init state to SafeOpe or Ope state)
all I/O Units occurred.
3 - 4
Flashing at 1-s
intervals
---Not lit• No Unit power supply
A communications error or other NX bus-related error that is common to all I/O Units occurred.
• Restarting is in progress for the Unit.
• Waiting for initialization to start
NX-series IO-Link Master Unit User’s Manual (W567)
3-2-2C Indicator
The meanings of the indicator are given below.
ColorStatusDescription
GreenLitInitial processing is in progress or IO-Link communications are in prog-
3 Part Names and Functions
ress during operation in IO-Link Mode.
Not lit• IO-Link communications are stopped during operation in IO-Link
Mode.
• Operation is currently performed in SIO (DI) or SIO (DO) Mode.
• The port is disabled.
3-2 Indicators
3-2-3E Indicator
The meanings of the indicator are given below.
ColorStatusDescription
RedLitA hardware error or other critical error has occurred.
Flashing at 1-s
intervals
Not lit• There are no IO-Link communications errors during operation in
3-2-4C/Q Indicator
The meanings of the indicator are given below.
ColorStatusDescription
YellowLit• The pin-2 input signal is ON during operation in IO-Link Mode.
Not lit• The pin-2 input signal is OFF during operation in IO-Link Mode.
3
3-2-2 C Indicator
There is an IO-Link communications error during operation in IO-Link
Mode.
IO-Link Mode.
• Operation is currently performed in SIO (DI) or SIO (DO) Mode.
• The port is disabled.
• The I/O signal is ON during operation in SIO (DI) Mode or SIO (DO)
Mode.
• The I/O signal is OFF during operation in SIO (DI) Mode or SIO (DO)
Mode.
• The port is disabled.
NX-series IO-Link Master Unit User’s Manual (W567)
3 - 5
3 Part Names and Functions
3 - 6
NX-series IO-Link Master Unit User’s Manual (W567)
Installation and Wiring
This section describes how to install the NX Units, the types of power supplies used to
supply power to them, their wiring methods, and how to wire the NX Units.
NX-series IO-Link Master Unit User’s Manual (W567)
4 - 1
4 Installation and Wiring
Precautions for Safe Use
Precautions for Correct Use
Restricted
region (shaded
portion)
4-1 Installing NX Units
This section describes how to install NX Units.
Refer to the user's manual of the CPU Unit or Communications Coupler Unit to which the NX Unit is
connected for information on preparations of installation and installation in a control panel.
4-1-1Installing NX Units
This section describes how to mount two NX Units to each other.
Always turn OFF the power supply before you mount NX Units.
Always mount NX Units one at a time. If you attempt to mount multiple NX Units that are already connected together, the connections between the NX Units may separate from each other and fall.
• Do not apply labels or tape on the NX Units. When the Unit is installed or removed, adhesive
or scrap may adhere to the pins of the NX bus connector, which may cause malfunctions.
• Do not touch the pins in the NX bus connector on the Unit. Dirt may adhere to the pins in the
NX bus connector, which may result in malfunctions.
NGNG
Example: NX Unit (12 mm width)
• Do not write with ink or soil within the restricted region that is shown in the following figure.
When the Unit is installed or removed, ink or dirt may adhere to the pins in the NX bus connector, which may result in malfunctions in the CPU Rack or Slave Terminal.
• When you install an NX Unit, do not touch or bump the pins in the NX bus connector.
4 - 2
• When you handle an NX Unit, be careful not to apply any stress to the pins in the NX bus
connector. If you install an NX Unit and turns ON the power supply when the pins in the NX
bus connector are deformed, a contact defect may cause malfunctions.
NX-series IO-Link Master Unit User’s Manual (W567)
4 Installation and Wiring
Unit hookup guides
Unit hookup guides
1From the front of the previously mounted NX Unit, engage the Unit hookup guides on a new Unit
with the Unit hookup guides on the previously mounted NX Unit.
2Slide the NX Unit in on the hookup guides.
4-1 Installing NX Units
3Press the NX Unit with a certain amount of force against the DIN Track until you hear the DIN
Track mounting hook lock into place.
When you mount the NX Unit, it is not necessary to release the DIN track mounting hook on the
NX Unit.
4
4-1-1 Installing NX Units
NX-series IO-Link Master Unit User’s Manual (W567)
After you mount the NX Unit, make sure that it is locked to the DIN Track.
4 - 3
4 Installation and Wiring
Additional Information
A marker that is attached
to the NX Unit
A marker that is attached
to the terminal block
• Normally, it is not necessary to release the DIN track mounting hook when you mount the NX
Unit. However, if you mount the NX Unit on a DIN Track that is not a recommended DIN
Track, the DIN track mounting hook may not lock correctly. If that happens, first unlock the
DIN track mounting hook, mount the NX Unit to the DIN Track, then lock the DIN track mounting hook.
• Refer to the hardware user’s manual for the CPU Unit to which NX-series Units are connected for information on how to mount the CPU Unit and how to mount NX Units to the CPU
Unit.
• Refer to the user's manual for the Communications Coupler Unit for information on how to
mount the Communications Coupler Unit, and how to mount the NX Unit to the Communications Coupler Unit.
4-1-2Attaching Markers
You can attach markers to the NX Units to identify them.
The plastic markers made by OMRON are installed for the factory setting. The ID information can be
written on them.
Commercially available markers can also be installed.
Replace the markers made by OMRON if you use commercially available markers now.
The marker attachment locations vary depending on the type of the external connection terminals on
the NX Units.
Screwless clamping terminal blockNX Unit and terminal block
M3 screw terminal block
MIL connectorNX Unit only
Fujitsu connector
External connection terminals on NX UnitsMarker attachment location
4 - 4
NX-series IO-Link Master Unit User’s Manual (W567)
Installation Method
Marker attachment
location
Marker
Screwless clamping
terminal block
NX Unit
M3 screw
terminal block
Marker attachment
location
MarkerMarker
Terminal
block cover
Marker attachment
location
Insert the protrusions on the markers into the marker attachment locations.
4 Installation and Wiring
4-1 Installing NX Units
Commercially Available Markers
Commercially available markers are made of plastic and can be printed on with a special printer.
To use commercially available markers, purchase the following products.
Product name
MarkersUC1-TMF8DEK 5/8
Special marker printerUM EN BLUEMARK X1PrintJet PRO
Manufactured by Phoenix ContactManufactured by Weidmuller
The markers made by OMRON cannot be printed on with commercially available special printers.
Model number
4
4-1-2 Attaching Markers
NX-series IO-Link Master Unit User’s Manual (W567)
4 - 5
4 Installation and Wiring
Precautions for Safe Use
Flat-blade screwdriver
DIN track mounting hook
Protrusion for removing the Unit
Protrusion for removing the Unit
4-1-3Removing NX Units
Always turn OFF the Unit power supply and I/O power supply before you remove the NX Unit.
1Use a flat-blade screwdriver to pull up the DIN Track mounting hook on the Unit to remove.
2Put your fingers on the protrusions for removing multiple NX Units including the Unit to be
removed, then pull out straight forward to remove.
4 - 6
NX-series IO-Link Master Unit User’s Manual (W567)
4 Installation and Wiring
Precautions for Correct Use
Up
Down
(A)
(B)
(E)
Upper
Lower
(C)
(F)
(D)
• When removing an NX Unit, remove multiple Units together which include the one you want
to remove. If you attempt to remove only one Unit, it is stuck and hard to pull out.
• Do not unlock the DIN track mounting hooks on all of the NX Units at the same time. If you
unlock the DIN Track mounting hooks on all of the NX Units at the same time, all of the Units
may come off.
4-1-4Installation Orientation
This section describes the installation orientation for each type of Unit that an NX Unit can be connected to.
Installation Orientation on the CPU Unit
The NX Unit can be installed only in the upright orientation.
For some NX Units, the specifications are restricted.
For detailed restrictions, refer to the user’s manuals for the NX Units and System Units that you will
use.
4-1 Installing NX Units
4
4-1-4 Installation Orientation
Installation Orientation on Slave Terminals
Orientation is possible in the following six directions.
(A) is the upright orientation and (B) to (F) are other orientations.
NX-series IO-Link Master Unit User’s Manual (W567)
4 - 7
4 Installation and Wiring
Precautions for Safe Use
However, there are restrictions on the installation orientation and restrictions to specifications that can
result from the Communications Coupler Units and NX Units that are used.
Refer to the user's manuals for the Communications Coupler Units, NX Units and System Units that you
will use for details on restrictions.
For installation orientations (C) and (D) in the above figure, support the cables, e.g., with a duct,
so that the End Plate on the bottom is not subjected to the weight of the cables. The weight of
the cables may cause the bottom End Plate to slide downward so that the Slave Terminal is no
longer secured to the DIN Track, which may cause malfunctions.
4 - 8
NX-series IO-Link Master Unit User’s Manual (W567)
4 Installation and Wiring
4-2Connecting the Power Supply and
Ground Wires
There are the following two types of power supplies that supply power to the IO-Link Master Unit as an
NX Unit.
Power supply nameDescription
NX Unit power supply This is the power supply for NX Unit operation.
I/O power supplyThis power supply is used for driving the I/O circuits of the NX Units and for the con-
nected external devices.
The methods for providing and wiring the above NX Unit power supplies depend on the specifications
of the CPU Unit and Slave Terminal the NX Units are connected to. Refer to Designing the Power Sup-ply System and Wiring in the hardware user’s manual for the connected CPU Unit or the user’s manual
for the Communications Coupler Unit for information on how to provide and wire the power supplies to
NX Units.
This section describes IO-Link Master Unit I/O power supply applications, I/O power supply methods,
and the I/O power supply total current consumption calculation method.
4-2-1I/O Power Supply Methods and Applications
4-2 Connecting the Power Supply and Ground Wires
4
4-2-1 I/O Power Supply Methods and Applications
This section describes the I/O power supply methods and applications for IO-Link Master Units.
I/O Power Supply Applications
The I/O power supply is used for the following applications.
• Power supply for I/O devices
• Power supply for I/O circuits
• Input current in SIO (DI) Mode
• External load current in SIO (DO) Mode
I/O Power Supply Methods
This power is supplied by one of the following methods.
Supply from the NX Bus
The I/O power supply method depends on the connection position of the IO-Link Master Unit as
described below
• When the IO-Link Master Unit is connected to an NX1P2 CPU Unit: I/O power is supplied through
the NX bus connectors by connecting an I/O power supply to the I/O power supply terminals on
the Additional I/O Power Supply Unit.
• When the IO-Link Master Unit is connected to a Communications Coupler Unit: I/O power is supplied through the NX bus connectors by connecting an I/O power supply to the I/O power supply
terminals on the Communications Coupler Unit or an Additional I/O Power Supply Unit.
Refer to Designing the Power Supply System and Wiring in the hardware user’s manual for the connected CPU Unit for details on when I/O power is supplied in a CPU Rack.
Refer to Designing the Power Supply System and Wiring in the user's manual for the connected
Communications Coupler Unit for details on when I/O power is supplied in a Slave Terminal.
NX-series IO-Link Master Unit User’s Manual (W567)
4 - 9
4 Installation and Wiring
Additional Information
Supply from External Source
Power is supplied to the Units from an external source.
I/O power is supplied by connecting an I/O power supply to the I/O power supply terminals on the
Units.
NX-series Power Supply-related Units
The following three NX-series Units are related to power supply.
• Additional NX Unit Power Supply Units
• Additional I/O Power Supply Units
• I/O Power Supply Connection Units
Refer to the NX-series System Unit User’s Manual (Cat. No. W523) for the specifications of
these Units.
For a complete list of the latest power supply Units in the NX Series, refer to the product catalog
or official website, or contact your OMRON representative.
4-2-2Calculating the Total Current Consumption from I/O Power Sup-
ply
The total current consumption of I/O power supplied from the NX bus must be within the range of the
maximum I/O power supply current of the Communications Coupler Unit or the Additional I/O Power
Supply Unit. For CPU Racks, the maximum I/O power supply current is restricted regardless of the
Additional I/O Power Supply Unit model. Refer to the hardware user’s manual for the CPU Unit to which
the NX Units are connected for details on restrictions for CPU Racks.
To confirm this and to calculate the I/O power supply capacity, calculate the total current consumption
from I/O power supply from the NX bus.
The total current consumption from I/O power supply from the NX bus is the total sum of current consumption from I/O power supply of the NX Unit that supplies the I/O power from the NX bus, the current
consumption of each applicable I/O circuit, and current consumption of any connected external
devices.
Note that the current consumption from I/O power supply indicated in the data sheet for each Unit type
does not include the load current of any external connection load and current consumption of any connected external devices.
The current consumption from I/O power supply of the IO-Link Master Unit is calculated as described
below.
Total Current Consumption of the IO-Link Master Unit from the I/O Power
Supply
= (Current consumption from I/O power supply of the IO-Link Master Unit) + (Input current × Number
of input points used) + (Load current × Number of output points used) + (Total current consumption
of connected external devices)
Refer to A-1 Data Sheet on page A-2 for the current consumption from the I/O power supply and input
current for each model of the IO-Link Master Units.
4 - 10
NX-series IO-Link Master Unit User’s Manual (W567)
4 Installation and Wiring
Precautions for Safe Use
Use the I/O power supply current for the CPU Rack of NX1P2 CPU Unit at 4 A or less. Using
the currents that are outside of the specifications may cause failure or damage.
4-2 Connecting the Power Supply and Ground Wires
4
4-2-2 Calculating the Total Current Consumption from I/O Power Supply
NX-series IO-Link Master Unit User’s Manual (W567)
4 - 11
4 Installation and Wiring
WARNING
Caution
4-3Wiring the Terminals
This section describes how to wire the terminals on the IO-Link Master Unit.
Make sure that the voltages and currents that are input to the Units and slaves are within the specified ranges.
Inputting voltages or currents that are outside of the specified ranges may cause accidents or fire.
Be sure that all terminal screws and cable connector screws are tightened to the torque specified in
the relevant manuals. The loose screws may result in fire or malfunction.
4-3-1Wiring to the Screwless Clamping Terminal Block
This section describes how to connect wires to the screwless clamping terminal block, the installation
and removing methods, and functions for preventing incorrect attachment.
You can connect ferrules that are attached to the twisted wires to the screwless clamping terminal
block. You can also connect the twisted wires or the solid wires to the screwless clamping terminal
block. If you connect the ferrules, all you need to do to connect the wires is to insert the ferrules into the
terminal holes.
Wiring Terminals
The terminals to be wired are as follows.
• I/O power supply terminals
• I/O terminals
Applicable Wires
4 - 12
The wires that you can connect to the screwless clamping terminal block are twisted wires, solid wires,
and ferrules that are attached to the twisted wires. The following section describes the dimensions and
processed methods for applicable wires.
NX-series IO-Link Master Unit User’s Manual (W567)
4 Installation and Wiring
1.6 mm max. (Terminals other than ground terminals)
2.0 mm max. (Ground terminals)
2.4 mm max. (Terminals other than ground terminals)
2.7 mm max. (Ground terminals)
Dimensions of Wires Connected to the Terminal Block
The dimensions of wires that you can connect into the terminal holes of the screwless clamping terminal block are as in the figure below.
Process the applicable wires that are specified in the following description to apply the dimensions.
Using Ferrules
If you use ferrules, attach the twisted wires to them.
Observe the application instructions for your ferrules for the wire stripping length when attaching ferrules.
Always use plated one-pin ferrules. Do not use unplated ferrules or two-pin ferrules.
4-3 Wiring the Terminals
4
4-3-1 Wiring to the Screwless Clamping Terminal Block
The applicable ferrules, wires, and crimping tools are listed in the following table.
Terminal
types
Terminals
other than
ground terminals
Ground terminals
Terminals
other than
ground terminals
*1. Some AWG14 wires exceed 2.0 mm2 and cannot be used in the screwless clamping terminal block.
Manufac-
turer
Phoenix
Contact
WeidmullerH0.14/120.14 (#26)Weidmuller (The figure in parentheses is the appli-
Ferrule
model
AI0,34-80.34 (#22)Phoenix Contact (The figure in parentheses is the
AI0,5-80.5 (#20)
AI0,5-10
AI0,75-80.75 (#18)
AI0,75-10
AI1,0-81.0 (#18)
AI1,0-10
AI1,5-81.5 (#16)
AI1,5-10
AI2,5-10
NX-series IO-Link Master Unit User’s Manual (W567)
4 - 13
4 Installation and Wiring
8 to 10 mm
2.4 mm max.
(Terminals other than ground terminals)
2.7 mm max.
(Ground terminals)
1.6 mm max.
(Terminals other than ground terminals)
2.0 mm max.
(Ground terminals)
When you use any ferrules other than those in the above table, crimp them to the twisted wires so that
the following processed dimensions are achieved.
Using Twisted Wires/Solid Wires
If you use twisted wires or solid wires, use the following table to determine the correct wire specifications.
TerminalsWire typeWire plating
Classifica-
tion
All terminals
except
ground terminals
Ground terminals
*1. Secure the wires to the screwless clamping terminal block. Refer to Securing Wires on page 4-19 for the
procedure to secure the wires.
*2. When you use the NX-TB1 Terminal Block, use twisted wires to connect the ground terminal. Do not
use solid wires.
Current
capacity
2 A max.Possible Possible PossiblePossible0.08 to 1.5
Greater
than 2 A
and 4 A or
less
Greater
than 4 A
---Possible Possible Possi-
Conductor length (stripping length)
Twi ste d
wires
Possi-
*1
ble
Solid
wire
Not possible
PlatedUnplated
Possi-
*1
ble
Not possible
*2
ble
Not possible
Possible
Wire size
2
mm
(AWG
28 to 16)
2.0 mm
2
Conductor
length (strip-
ping length)
8 to 10 mm
9 to 10 mm
4 - 14
NX-series IO-Link Master Unit User’s Manual (W567)
4 Installation and Wiring
Precautions for Correct Use
Additional Information
Unravel wiresBend wires
NG
NG
Terminal hole
Release hole
• Use cables with suitable wire sizes for the carrying current. There are also restrictions on the
current due to the ambient temperature. Refer to the manuals for the cables and use the
cables correctly for the operating environment.
• For twisted wires, strip the sheath and twist the conductor portion. Do not unravel or bend the
conductor portion of twisted wires or solid wires.
4-3 Wiring the Terminals
If more than 2 A will flow on the wires, use plated wires or use ferrules.
Connecting/Removing Wires
This section describes how to connect and remove wires.
Terminal Block Parts and Names
4
4-3-1 Wiring to the Screwless Clamping Terminal Block
NX-series IO-Link Master Unit User’s Manual (W567)
4 - 15
4 Installation and Wiring
2.5 mm0.4 mm
Front view
8 to 12
°
Side view
2.5-mm dia.
Ferrule
Required Tools
Use a flat-blade screwdriver to connect and remove wires.
Use the following flat-blade screwdriver.
Recommended screwdriver
ModelManufacturer
SZF 0-0,4×2,5Phoenix Contact
Connecting Ferrules
Insert the ferrule straight into the terminal hole.
It is not necessary to press a flat-blade screwdriver into the release hole.
After you make a connection, make sure that the ferrule is securely connected to the terminal block.
4 - 16
NX-series IO-Link Master Unit User’s Manual (W567)
4 Installation and Wiring
1
10 to 15
°
Release holeFlat-blade screwdriver
3
Connecting Twisted Wires/Solid Wires
Use the following procedure to connect the twisted wires or solid wires to the terminal block.
1Press a flat-blade screwdriver diagonally into the release hole.
Press at an angle of 10° to 15°.
If you press in the screwdriver correctly, you will feel the spring in the release hole.
4-3 Wiring the Terminals
2Leave the flat-blade screwdriver pressed into the release hole and insert the twisted wire or the
solid wire into the terminal hole.
Insert the twisted wire or the solid wire until the stripped portion is no longer visible to prevent
shorting.
2
Twisted wire/Solid wire
3Remove the flat-blade screwdriver from the release hole.
4
4-3-1 Wiring to the Screwless Clamping Terminal Block
After you make a connection, make sure that the twisted wire or the solid wire is securely connected
to the terminal block.
NX-series IO-Link Master Unit User’s Manual (W567)
4 - 17
4 Installation and Wiring
Precautions for Safe Use
NG
NG
• Do not press the flat-blade screwdriver straight into the release hole. Doing so may break the
terminal block.
NG
OK
• When you insert a flat-blade screwdriver into a release hole, press it down with a force of 30
N max. Applying excessive force may damage the terminal block.
• Do not tilt or twist the flat-blade screwdriver while it is pressed into the release hole. Doing so
may break the terminal block.
• Make sure that all wiring is correct.
• Do not bend the cable forcibly. Doing so may sever the cable.
4 - 18
NX-series IO-Link Master Unit User’s Manual (W567)
4 Installation and Wiring
1.5 mm max.
4.0 mm max.
Hole for securing wires
Cable tie
Securing Wires
Depending on the type of wire that is used and the current carried by the wire, it is sometimes necessary to secure the wire to the screwless clamping terminal block.
The following table shows when securing the wire is necessary.
You can use cable ties that are 4 mm or less in width and 1.5 mm or less in thickness.
Select suitable cable ties for the application environment.
4-3 Wiring the Terminals
4
4-3-1 Wiring to the Screwless Clamping Terminal Block
2Insert the cable tie through the hole for securing wires at the bottom of the screwless clamping
terminal block.
NX-series IO-Link Master Unit User’s Manual (W567)
4 - 19
4 Installation and Wiring
30
3Tie up the wires with the cable tie and secure them to the screwless clamping terminal block.
Secure the wires so that they extend no more than 30 mm from the screwless clamping terminal
block.
4 - 20
NX-series IO-Link Master Unit User’s Manual (W567)
Removing Wires
1
10 to 15
°
Flat-blade screwdriver
2
Wire
3
Use the following procedure to remove the wires from the terminal block.
The removal method is the same for ferrules, twisted wires, and solid wires.
If wires are secured firmly to the terminal block, release them first.
1Press the flat-blade screwdriver diagonally into the release hole.
Press at an angle of 10° to 15°.
If you press in the screwdriver correctly, you will feel the spring in the release hole.
4 Installation and Wiring
4-3 Wiring the Terminals
2Leave the flat-blade screwdriver pressed into the release hole and pull out the wire.
3Remove the flat-blade screwdriver from the release hole.
4
4-3-1 Wiring to the Screwless Clamping Terminal Block
NX-series IO-Link Master Unit User’s Manual (W567)
4 - 21
4 Installation and Wiring
Precautions for Safe Use
NG
OK
NG
NG
• Do not press the flat-blade screwdriver straight into the release hole. Doing so may break the
terminal block.
• When you insert a flat-blade screwdriver into a release hole, press it down with a force of 30
N max. Applying excessive force may damage the terminal block.
• Do not tilt or twist the flat-blade screwdriver while it is pressed into the release hole. Doing so
may break the terminal block.
• Make sure that all wiring is correct.
• Do not bend the cable forcibly. Doing so may sever the cable.
4 - 22
NX-series IO-Link Master Unit User’s Manual (W567)
4 Installation and Wiring
Lock lever
Terminal block
Removing a Terminal Block
1Press the lock lever on the terminal block and pull out the top of the terminal block to remove it.
4-3 Wiring the Terminals
Attaching a Terminal Block
1Mount the terminal block hook on the guide at the bottom of the NX Unit, lift up the terminal
block, and press in on the top of the terminal block until you hear it engage.
The terminal block will click into place on the Unit.
After you mount the terminal block, make sure that it is locked to the Unit.
4
4-3-1 Wiring to the Screwless Clamping Terminal Block
Mount a terminal block that is applicable to each Unit model.
Refer to A-4 List of Screwless Clamping Terminal Block Models on page A-35 for the applicable ter-
minal blocks.
NX-series IO-Link Master Unit User’s Manual (W567)
GuideHook
4 - 23
4 Installation and Wiring
Terminal block
Unit
Cannot be
attached.
Preventing Incorrect Attachment of Terminal Blocks
In order to prevent unintentionally installing the wrong terminal block, you can limit the combination of a
Unit and a terminal block.
Insert three Coding Pins (NX-AUX02) into three of the six incorrect attachment prevention holes on the
Unit and on the terminal block. Insert these pins into positions so that they do not interfere with each
other when the Unit and terminal block are connected to each other.
You can use these pins to create a combination in which the wrong terminal block cannot be attached
because the pin patterns do not match.
4 - 24
NX-series IO-Link Master Unit User’s Manual (W567)
4 Installation and Wiring
For terminal blockFor Unit
Coding Pins (Use this part.)
Runners
Types of Coding Pins
There are two types of Coding Pins, both with their own unique shape: one for terminal blocks and
one for Units.
Three pins come with each runner.
4-3 Wiring the Terminals
Use the following Coding Pins.
NameModelSpecification
Coding PinNX-AUX02For 10 Units
(Terminal block: 30 pins, Unit: 30 pins)
4
4-3-1 Wiring to the Screwless Clamping Terminal Block
NX-series IO-Link Master Unit User’s Manual (W567)
Holes for incorrect
attachment prevention
(pin locations)
Pin locations for Unit
Pattern
Holes used by
OMRON
Holes for incorrect
attachment prevention
(pin locations)
Insertion Locations and Patterns of Coding Pins
Insert three Coding Pins of each on the terminal block and on the Unit at the positions designated by
the numbers 1 through 6 in the figure below.
As shown in the following table, there are 20 unique pin patterns that can be used.
4 - 26
NX-series IO-Link Master Unit User’s Manual (W567)
4 Installation and Wiring
Precautions for Correct Use
Terminal blockUnit
To make the maximum of 20 patterns, purchase two sets of NX-AUX02 Pins. (One set for 10 Units.)
• OMRON uses the holes other than No. 1 to 6 in the figure on the previous page. If you insert
a Coding Pin into one of the holes used by OMRON on the terminal block side, this makes it
impossible to mount the terminal block on a Unit.
• Do not use Coding Pins that have been attached and removed.
Inserting the Coding Pins
1Hold the pins by the runner and insert a pin into one of the incorrect attachment prevention
holes on the terminal block or on the Unit.
4-3 Wiring the Terminals
2Rotate the runner to break off the Coding Pin.
Terminal block
4
4-3-1 Wiring to the Screwless Clamping Terminal Block
NX-series IO-Link Master Unit User’s Manual (W567)
4 - 27
4 Installation and Wiring
Additional Information
Unit
4-3-2Checking the Wiring
Check the wiring from the Watch Tab Page or other interface of the Support Software by reading Slave
Terminal input data and writing Slave Terminal output data.
For inputs in SIO (DI) Mode or digital inputs for pin 2, you can turn ON and OFF the input from the
external device that is connected to the Unit you need to check and monitor the results.
For SIO (DO) Mode, you can control the I/O outputs to the Unit you need to check and confirm the operation of the connected external device.
Refer to the operation manual for your Support Software for details on monitoring and output operations for I/O.
• In the Sysmac Studio, you can check the wiring from the I/O Map or Watch Tab Page. If you
use the I/O Map, you can also monitor and perform forced refreshing even if the variables are
not defined or the algorithms are not created. Therefore, you can easily check the wiring.
Refer to the Sysmac Studio Version 1 Operation Manual (Cat. No. W504) for details on monitoring and forced refreshing operations.
• Some Communications Coupler Units support I/O checking that allows you to check wiring
with only the Slave Terminal. Refer to the user's manual of the Communications Coupler Unit
for detailed information on the support and functionality of I/O checking for your Communications Coupler Unit.
4 - 28
NX-series IO-Link Master Unit User’s Manual (W567)
4 Installation and Wiring
L+
C/Q
DI
L-
IOG
IOV
IO-Link Master Unit
Communications Coupler Unit or
Additional I/O Power Supply Unit
Three-wire sensor,
PNP type
4-4Wiring Examples and Wiring Precau-
tions
This section gives some wiring examples for the IO-Link Master Unit and precautions for wiring.
4-4-1IO-Link Mode
IO-Link Mode
IO-Link device
Brown (pin 1)
Black (pin 4)
White (pin 2)
Blue (pin 3)
IOV
IOG
L+
C/Q
DI
L-
4-4 Wiring Examples and Wiring Precautions
Communications Coupler Unit or
Additional I/O Power Supply Unit
4
4-4-1 IO-Link Mode
IO-Link Master Unit
Note 1. If you do not use a signal connection for digital inputs for pin 2, a DI (white) connection is not required.
2. Refer to the terminal connection diagram for Unit specifications in A-1-2 IO-Link Master Unit on page
A-3 for details on the terminal array of the IO-Link Master Unit.
4-4-2SIO (DI) Mode
Wiring Three-wire Sensors
Power is supplied to the sensors from the IO-Link Master Unit.
NX-series IO-Link Master Unit User’s Manual (W567)
Note 1. The DI terminal cannot be used.
4 - 29
4 Installation and Wiring
L+
C/Q
DI
L-
IOG
IOV
IO-Link Master Unit
Communications Coupler Unit or
Additional I/O Power Supply Unit
Two-wire sensor
L+
C/Q
DI
L-
IOG
IOV
IO-Link Master Unit
Communications Coupler Unit or
Additional I/O Power Supply Unit
The DI terminal cannot be used.
L
2. Refer to the terminal connection diagram for Unit specifications in A-1-2 IO-Link Master Unit on page
A-3 for details on the terminal array of the IO-Link Master Unit.
Wiring Two-wire Sensors
Power is supplied to the sensors from the IO-Link Master Unit.
4-4-3SIO (DO) Mode
4 - 30
Note 1. The DI terminal cannot be used.
2. Refer to the terminal connection diagram for Unit specifications in A-1-2 IO-Link Master Unit on page
A-3 for details on the terminal array of the IO-Link Master Unit.
Wiring Output Devices
Note Refer to the terminal connection diagram for Unit specifications in A-1-2 IO-Link Master Unit on page A-3
for details on the terminal array of the IO-Link Master Unit.
NX-series IO-Link Master Unit User’s Manual (W567)
4-5Wiring Precautions
TON
T#100ms
XOutput
Sensor_power
4-5-1Wiring Precautions for SIO (DI) Mode
Precautions on Sensor Surge Current
An incorrect input may occur due to sensor inrush current if a sensor is turned ON after the DC Input
Unit has started up to the point where inputs are possible.
Determine the time required for sensor operation to stabilize after the sensor is turned ON and take
appropriate measures, such as inserting an ON delay into the user program after turning ON the
sensor.
A programming example is shown below.
4 Installation and Wiring
4-5 Wiring Precautions
4
The sensor's power supply voltage is used as the input bit to Sensor_power.
A 100-ms timer delay (the time required for an OMRON Proximity Sensor to stabilize) is created in
the user program.
After the timer changes to TRUE, input bit X causes the output Output to change to TRUE after the
input of the sensor changes to TRUE.
4-5-2Wiring Precautions for SIO (DO) Mode
Push-pull Outputs
When the communications mode of an IO-Link Master Unit port is set to SIO (DO) Mode, a push-pull
output is used to increase the speed of the output ON/OFF response.
4-5-1 Wiring Precautions for SIO (DI) Mode
NX-series IO-Link Master Unit User’s Manual (W567)
When the communications mode of an IO-Link Master Unit port is set to SIO (DO) Mode, use the same
load power supply for the I/O power supply and the connected external device.
If different power supplies are used, the current may flow into the output bit via the diode built into the
I/O circuit and cause the IO-Link Master Unit to malfunction.
4 - 31
4 Installation and Wiring
IOV
IOG
IOV
IOG
IOV
IOG
IOV
IOG
Additional I/O Power
Supply Unit
24 VDC
24 VDC
Additional I/O Power Supply Unit
IO-Link Master Unit set to SIO (DO) Mode
IOV
IOG
Threewire
device
Three-wire
device
Signal
Signal
P1_C/Q
P1_L+
P3_C/Q
P1_DI
A1B1
A8B8
P1_L-
P3_DI
P3_L+ P4_L+
P3_L- P4_L-
P2_C/Q
P2_L+
P4_C/Q
P2_DI
P2_L-
P4_DI
+
-
IO-Link Master Unit
set to SIO (DO) Mode
+
-
L+
C/Q
L-
24 VDC
Additional I/O Power Supply Unit
IO-Link Master Unit set to SIO (DO) Mode
IOV
IOG
IOV
IOG
IOV
IOG
IOV
IOG
IOV
IOG
Additional I/O Power
Supply Unit
24 VDC
al I/O
Unit
G
Threewire
device
P1_C/Q
P1_L +
P3_C/Q
P1_DI
A1B1
A8B8
P1_L-
P3_DI
P3_L+ P4_L+
P3_L-
P4_L-
P2_C/Q
P2_L+
P4_C/Q
P2_DI
P2_L-
P4_DI
IO-Link Master Unit
set to SIO (DO) Mode
Three-wire
device
Signal
+
-
+
-
Signal
L+
C/Q
L-
Good Example
Bad Example
4 - 32
NX-series IO-Link Master Unit User’s Manual (W567)
I/O Refreshing
This section describes the types and functions of I/O refreshing for the NX Units.
NX-series IO-Link Master Unit User’s Manual (W567)
5 - 1
5 I/O Refreshing
CPU Unit
(b)
NX UnitNX Unit
(c)(c)(c)
NX Unit
(a)
Data exchange between
the user program and I/O Units
5-1I/O Refreshing
This section describes I/O refreshing for the NX Units.
5-1-1I/O Refreshing from the CPU Unit to NX Units
An NX-series NX1P2 CPU Unit refreshes the I/O for NX Units cyclically.
The following period and two cycles affect operation of the I/O refreshing between the CPU Unit and the
NX Units:
(a) Primary period in CPU Unit
(b) Refresh cycle of the NX bus
(c) Refresh cycle of each NX Unit
The following operations are performed.
• The refresh cycle of the NX bus in item (b) is automatically synchronized with the primary period of
the CPU Unit in item (a).
• The (c) refresh cycles of the NX Units depend on the I/O refreshing methods, which are described
later.
Refer to the NJ/NX-series CPU Unit Software User’s Manual (Cat. No. W501-E1-16 or later) for information on refreshing of I/O between an NX-series NX1P2 CPU Unit and NX Units.
Refer to the NJ/NX-series CPU Unit Software User’s Manual (Cat. No. W501-E1-16 or later) for details
on I/O response times for NX Units on CPU Racks.
5-1-2I/O Refreshing from the CPU Unit or Industrial PC to Slave Termi-
nals
The CPU Unit or the Industrial PC performs I/O refreshing cyclically with the Slave Terminals through
the Communications Master Unit and the Communications Coupler Unit.
The following four cycles affect operation of the I/O refreshing between the CPU Unit or the Industrial
PC and the NX Units in a Slave Terminal:
5 - 2
(a) Cycle time of the CPU Unit or Industrial PC
(b) Communications cycle of the host network
NX-series IO-Link Master Unit User’s Manual (W567)
(c) Refresh cycle of the NX bus
Data exchange between the
user program and I/O Units
Communications
Master Unit
CPU Unit or
Industrial PC
(a) Cycle
time
(b) Communications cycle of the host network
(c) Refresh cycle of the NX bus
Communications
Coupler
Unit
NX UnitNX UnitNX Unit
Communications path
Other communications
slaves
(d) Refresh cycle of each NX Unit
Slave Terminal
(d) Refresh cycle of each NX Unit
5 I/O Refreshing
5-1 I/O Refreshing
5
5-1-2 I/O Refreshing from the CPU Unit or Industrial PC to Slave Terminals
The cycle time of the CPU Unit or Industrial PC, the communications cycle of the host network, and the
NX bus I/O refresh cycle are determined by the model of the CPU Unit or Industrial PC and the type of
communications.
The following explains operations when the built-in EtherCAT port on the NJ/NX-series CPU Unit or
NY-series Industrial PC is used for communications with an EtherCAT Slave Terminal, with symbols in
the figure.
Refer to the user’s manual for the connected Communications Coupler Unit for information on the
operation of I/O refreshing for Slave Terminals other than EtherCAT Slave Terminals.
NX-series IO-Link Master Unit User’s Manual (W567)
5 - 3
5 I/O Refreshing
Operation of I/O Refreshing with NX-series CPU Units
The following shows the operation of I/O refreshing when the built-in EtherCAT port on the NX-series
CPU Unit is used for communications with an EtherCAT Slave Terminal.
• The process data communications cycle in item (b) and the refresh cycle of the NX bus in item (c) are
automatically synchronized with the primary period or the task period of the priority-5 periodic task of
the CPU Unit in item (a).
• The refresh cycle of each NX Unit in item (d) depends on the I/O refreshing method which is given
below.
*1. This applies when the distributed clock is enabled in the EtherCAT Coupler Unit.
The priority-5 periodic task must be supported by the connected CPU Unit model. Refer to the
NJ/NX-series CPU Unit Software User’s Manual (Cat. No. W501-E1-16 or later) for the periodic
tasks supported by each model of NX-series CPU Unit.
Operation of I/O Refreshing with NJ-series CPU Units or NY-series
Industrial PCs
*1
The operation of I/O refreshing is as follows when the built-in EtherCAT port on the NJ-series CPU Unit
or NY-series Industrial PC is used for communications with an EtherCAT Slave Terminal.
• The process data communications cycle in item (b) and the refresh cycle of the NX bus in item (c)
are automatically synchronized with the primary period of the NJ-series CPU Unit or NY-series Industrial PC in item (a).
• The refresh cycle of each NX Unit in item (d) depends on the I/O refreshing method which is given
below.
*1. This applies when the distributed clock is enabled in the EtherCAT Coupler Unit.
Refer to the NX-series EtherCAT Coupler Unit User's Manual (Cat. No. W519-E1-08 or later) for
detailed information on I/O refreshing between the built-in EtherCAT port on the NJ/NX-series CPU Unit
and EtherCAT Slave Terminals.
Refer to the user’s manual for the connected Communications Coupler Unit for the I/O response times
of NX Units on Slave Terminals.
*1
5 - 4
NX-series IO-Link Master Unit User’s Manual (W567)
5-2I/O Refreshing Methods
This section describes I/O refreshing methods for the IO-Link Master Unit.
5-2-1Types of I/O Refreshing Methods
The I/O refreshing methods that you can use between the CPU Unit or Communications Couple Unit
and the NX Units are determined by the CPU Unit or Communications Coupler Unit that is used.
In the IO-Link Master Unit, the following Free-Run refreshing is always used.
I/O refreshing method nameOutline of operation
Free-Run refreshingWith this I/O refreshing method, the refresh cycle of the NX bus and the I/O
refresh cycles of the NX Units are asynchronous.
5 I/O Refreshing
5-2 I/O Refreshing Methods
5
5-2-1 Types of I/O Refreshing Methods
NX-series IO-Link Master Unit User’s Manual (W567)
5 - 5
5 I/O Refreshing
5-2-2Setting the I/O Refreshing Methods
Method for Setting Refreshing for I/O between a CPU Unit and NX
Units
The setting method for the I/O refreshing method between the CPU Unit and the NX Units is determined by the connected CPU Unit. Refer to the software user’s manual for the connected CPU Unit for
information on the setting method for I/O refreshing between the CPU Unit and the NX Units.
For example, in the NX1P2 CPU Unit, there is no setting for this method for I/O refreshing.
Method for Setting Refreshing for I/O between a Communications
Coupler Unit and NX Units
The setting method for the I/O refreshing method between the Communications Coupler Unit and the
NX Units is determined by the connected Communications Coupler Unit.
Refer to the user’s manual for the connected Communications Coupler Unit for information on the setting method for I/O refreshing between the Communications Coupler Unit and the NX Units.
An example is provided below for when an EtherCAT Coupler Unit is connected to the built-in EtherCAT
port on an NJ/NX-series CPU Unit or NY-series Industrial PC. The I/O refreshing method between the
EtherCAT Coupler Unit and each NX Unit depends on whether the DC is enabled in the EtherCAT Coupler Unit.
5-2-3Refreshing Operation of the IO-Link Master Unit
An NX-series IO-Link Master Unit uses I/O refreshing to refresh I/O data with the CPU Unit or
Communications Coupler Unit.
Refer to the software user's manual of the connected CPU Unit or the user's manual of the connected
Communications Coupler Unit for information on the overall operation of communications including I/O
refreshing between the NX-series IO-Link Master Unit and the CPU Unit or Communications Coupler
Unit.
5 - 6
NX-series IO-Link Master Unit User’s Manual (W567)
5 I/O Refreshing
5-3Communications Performance
This section describes the I/O response times of the IO-Link Master Unit.
The I/O response time is the time required for the following processing: The CPU Unit processes an
external signal input to one NX Unit, and another NX Unit outputs the processed result as an external
signal.
5-3-1Maximum I/O Response Time When the EtherCAT Coupler Unit Is
Connected
This section describes the maximum I/O response time of the IO-Link Master Unit when an EtherCAT
Coupler Unit is connected.
For information on timing charts and calculation methods for I/O response times for NX Units in EtherCAT Slave Terminals, refer to Free-Run Refreshing I/O Response Times in the NX-series EtherCAT Coupler Unit User's Manual (Cat. No. W519).
5-3 Communications Performance
The following NX Unit parameters are necessary to calculate I/O response times.
• Tnx-InProc: Input data processing time of the NX Unit
• Tnx-Indelay: Input delay time of the NX Unit
• Tnx-OutProc: Output data processing time of the NX Unit
• Tnx-Outdelay: Output delay time of the NX Unit
The parameter values and calculation methods for the IO-Link Master Unit are given below.
Input Data
I/O data typeIO-Link process input data
Parameter
Tnx-InProc0[ms]
Tnx-Indelay
*1. For information on how to determine the IO-Link communications cycle, refer to 5-3-4 Determining the IO-Link
Communications Cycle on page 5-11.
from IO-Link communica-
tions in IO-Link Mode
0.072 × (Total size (in bytes)
of IO-Link process input data
from IO-Link communications from port 1 to port 4) +
2.61+ IO-Link communica-
tions cycle
Example: When port 1
through port 4 are all used by
IO-Link devices (sensors) with
an IO-Link input data size of 2
bytes, and the IO-Link communications cycle for those
IO-Link devices (sensors) is
0.072 × (Total size (in bytes) of IO-Link process input data
from IO-Link communications from port 1 to port 4) + 2.61+
Input filter time [ms]
Example: When port 1
through port 4 are all used
by IO-Link devices (sensors)
with an IO-Link input data
size of 2 bytes and no input
filter is used: 0.072 × 2 bytes
× 4 devices + 2.61 = 3.186
[ms]
Digital input data in SIO
(DI) Mode
Example: When port 1
through port 3 are used by
IO-Link devices with an
IO-Link input data size of 2
bytes and port 4 is used by a
non-IO-Link device with no
input filter: 0.072 × 2 bytes ×
3 devices + 2.61 = 3.042
[ms]
5
5-3-1 Maximum I/O Response Time When the EtherCAT Coupler Unit Is Connected
NX-series IO-Link Master Unit User’s Manual (W567)
5 - 7
5 I/O Refreshing
Output Data
I/O data type
Parameter
Tnx-OutProc0[ms]
Tnx-Outdelay
*1. For information on how to determine the IO-Link communications cycle, refer to 5-3-4 Determining the IO-Link
Communications Cycle on page 5-11.
IO-Link process output data from IO-Link
communications in IO-Link Mode
0.044 × (Total size (in bytes) of IO-Link process output data from IO-Link communications from port 1 to port 4) + 1.47 + IO-Link
communications cycle
Example: When only port 4 is used by an
IO-Link device (actuator) with an IO-Link
output data size of 2 bytes, and the IO-Link
communications cycle for that IO-Link
device (actuator) is 2.1 [ms]: 0.044 × 2
bytes × 1 device + 1.47 + 2.1 = 3.658 [ms]
*1
[ms]
Digital output data in SIO (DO) Mode
0.044 × (Total size (in bytes) of IO-Link process output data from IO-Link communications from port 1 to port 4) + 1.47 [ms]
Example: When port 1 through port 3 are
used by IO-Link devices with an IO-Link
input data size of 2 bytes and port 4 is used
by a non-IO-Link actuator: 0 + 1.47 = 1.47
[ms]
5-3-2Maximum I/O Response Time When the EtherNet/IP Coupler Unit
Is Connected
This section describes the maximum I/O response time when an EtherNet/IP Coupler Unit is connected.
For information on timing charts and calculation methods for I/O response times for NX Units in Ethernet/IP Slave Terminals, refer to I/O Response Times in the NX-series EtherNet/IP Coupler Unit User's Manual (Cat. No. W536).
The following NX Unit parameters are necessary to calculate I/O response times.
• Tin: Input response time of the NX Unit
• Tout: Output response time of the NX Unit
The parameter values and calculation methods for the IO-Link Master Unit are given below.
5 - 8
NX-series IO-Link Master Unit User’s Manual (W567)
Input Data
5 I/O Refreshing
I/O data typeIO-Link process input data
Parameter
Tin
*1. For information on how to determine the IO-Link communications cycle, refer to 5-3-4 Determining the IO-Link
Communications Cycle on page 5-12.
from IO-Link communica-
tions in IO-Link Mode
0.072 × (Total size (in bytes)
of IO-Link process input data
from IO-Link communications from port 1 to port 4) +
2.61+ IO-Link communica-
tions cycle
Example: When port 1
through port 4 are all used
by IO-Link devices (sensors)
with an IO-Link input data
size of 2 bytes, and the
IO-Link communications
cycle for those IO-Link
devices (sensors) is 2.1
[ms]: 0.072 × 2 bytes × 4
devices + 2.61 + 2.1 = 5.286
[ms]
*1
[ms]
Output Data
I/O data type
Parameter
Tout
*1. For information on how to determine the IO-Link communications cycle, refer to 5-3-4 Determining the IO-Link
Communications Cycle on page 5-12.
IO-Link process output data from IO-Link
communications in IO-Link Mode
0.044 × (Total size (in bytes) of IO-Link process output data from IO-Link communications from port 1 to port 4) + 1.47 + IO-Link
communications cycle
Example: When only port 4 is used by an
IO-Link device (actuator) with an IO-Link
output data size of 2 bytes, and the IO-Link
communications cycle for that IO-Link
device (actuator) is 2.1 [ms]: 0.044 × 2
bytes × 1 device + 1.47 + 2.1 = 3.658 [ms]
*1
Digital input data for pin 2
in IO-Link Mode
0.072 × (Total size (in bytes) of IO-Link process input data
from IO-Link communications from port 1 to port 4) + 2.61+
Input filter time [ms]
Example: When port 1
through port 4 are all used
by IO-Link devices (sensors)
with an IO-Link input data
size of 2 bytes and no input
filter is used: 0.072 × 2 bytes
× 4 devices + 2.61 = 3.186
[ms]
Digital output data in SIO (DO) Mode
0.044 × (Total size (in bytes) of IO-Link process output data from IO-Link communications from port 1 to port 4) + 1.47 [ms]
[ms]
Example: When port 1 through port 3 are
used by IO-Link devices with an IO-Link
input data size of 2 bytes and port 4 is used
by a non-IO-Link actuator: 0 + 1.47 = 1.47
[ms]
Digital input data in SIO
(DI) Mode
Example: When port 1
through port 3 are used by
IO-Link devices with an
IO-Link input data size of 2
bytes and port 4 is used by a
non-IO-Link device with no
input filter: 0.072 × 2 bytes ×
3 devices + 2.61 = 3.042
[ms]
5-3 Communications Performance
5
5-3-3 Maximum I/O Response Time When the CPU Unit Is Connected
5-3-3Maximum I/O Response Time When the CPU Unit Is Connected
This section describes the maximum I/O response time of the IO-Link Master Unit when the CPU Unit is
connected.
For information on timing charts and calculation methods for I/O response times for NX Units when connecting to the CPU Unit, refer to Specifications and Basic Operation of Tasks for NX1P2 CPU Units in
the NJ/NX-series CPU Unit Software User’s Manual (Cat. No. W501).
The following NX Unit parameters are necessary to calculate I/O response times.
• Tnx-InProc: Input data processing time of the NX Unit
• Tnx-Indelay: Input delay time of the NX Unit
NX-series IO-Link Master Unit User’s Manual (W567)
5 - 9
5 I/O Refreshing
• Tnx-OutProc: Output data processing time of the NX Unit
• Tnx-Outdelay: Output delay time of the NX Unit
The parameter values and calculation methods for the IO-Link Master Unit are given below.
Input Data
I/O data typeIO-Link process input data
Parameter
Tnx-InProc0[ms]
Tnx-Indelay
*1. For information on how to determine the IO-Link communications cycle, refer to 5-3-4 Determining the IO-Link
Communications Cycle on page 5-11.
from IO-Link communica-
tions in IO-Link Mode
0.072 × (Total size (in bytes)
of IO-Link process input data
from IO-Link communications from port 1 to port 4) +
2.61+ IO-Link communica-
tions cycle
Example: When port 1
through port 4 are all used
by IO-Link devices (sensors)
with an IO-Link input data
size of 2 bytes, and the
IO-Link communications
cycle for those IO-Link
devices (sensors) is 2.1
[ms]: 0.072 × 2 bytes × 4
devices + 2.61 + 2.1 = 5.286
[ms]
*1
[ms]
Digital input data for pin 2
in IO-Link Mode
0.072 × (Total size (in bytes) of IO-Link process input data
from IO-Link communications from port 1 to port 4) + 2.61+
Input filter time [ms]
Example: When port 1
through port 4 are all used
by IO-Link devices (sensors)
with an IO-Link input data
size of 2 bytes and no input
filter is used: 0.072 × 2 bytes
× 4 devices + 2.61 = 3.186
[ms]
Digital input data in SIO
(DI) Mode
Example: When port 1
through port 3 are used by
IO-Link devices with an
IO-Link input data size of 2
bytes and port 4 is used by a
non-IO-Link device with no
input filter: 0.072 × 2 bytes ×
3 devices + 2.61 = 3.042
[ms]
Output Data
I/O data typeIO-Link process output
Parameter
Tnx-OutProc0[ms]
Tnx-Outdelay
*1. For information on how to determine the IO-Link communications cycle, refer to 5-3-4 Determining the IO-Link
Communications Cycle on page 5-11.
data from IO-Link commu-
nications in IO-Link Mode
0.044 × (Total size (in bytes)
of IO-Link process output
data from IO-Link communications from port 1 to port 4)
+ 1.47 + IO-Link communi-
cations cycle
Example: When only port 4
is used by an IO-Link device
(actuator) with an IO-Link
output data size of 2 bytes,
and the IO-Link communications cycle for that IO-Link
device (actuator) is 2.1 [ms]:
0.044 × 2 bytes × 1 device +
1.47 + 2.1 = 3.658 [ms]
*1
[ms]
0.044 × (Total size (in bytes) of IO-Link process output data
from IO-Link communications from port 1 to port 4) + 1.47
[ms]
Example: When port 1 through port 3 are used by IO-Link
devices with an IO-Link input data size of 2 bytes and port 4
is used by a non-IO-Link actuator: 0 + 1.47 = 1.47 [ms]
Digital output data in SIO (DO) Mode
5 - 10
NX-series IO-Link Master Unit User’s Manual (W567)
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