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 * Discover IO-Link
   * IO-Link for PLC
   * IO-Link for PLC and IIoT
   * IO-Link for IIoT
   * Technology
   * Solutions
   * Device configuration
   * Setup and support
   * IIoT journey




DISCOVER THE IO-LINK ADVANTAGE

IO-Link is a worldwide open standard protocol that is used for communication
between devices in industrial settings. It facilitates bidirectional data
exchange between a master device, actuators, and sensors.

IO-Link is the foundational technology of the Industrial Internet of Things
(IIoT). This digital communication network provides raw sensor values for more
accurate data from your machines. It also eliminates the need to scale analog
signals. 

Jump to

 * How does IO-Link unlock the potential of your machine?
 * Accepted technology
 * How does IO-Link work?
 * Communication technologies comparison
 * ifm IO-Link ecosystem
 * IO-Link starter kits


HOW DOES IO-LINK UNLOCK THE POTENTIAL OF YOUR MACHINE? 



Reduce the total cost and time of a machine build:   Save time during
commissioning:   Improve your end user experience:
 * One IO-Link sensor can potentially replace several devices by supplying
   multiple process values over a single wire.
 * The IO-link communication modules are all field ready and designed to reduce
   the cabinet requirements for the control panel.
 * IO-Link field-mount devices can be connected mechanically, versus a
   labor-intensive wiring harness.

 
 * With bidirectional digital communication, field modules and IO-link devices
   can be commissioned in seconds by simply uploading a configuration file.
 * Sensing and networking devices are verified and validated automatically
   during the commissioning step.
 * Get "point of issue" location-based diagnostics on your system.

 
 * Automatic device replacement and verification allows end users to maintain
   their machines by simply swapping parts.
 * Remote parameterization, such as recipe changes, offers real-time
   adaptability and minimal downtime. 


TRADITIONAL POINT-TO-POINT WIRING


IO-LINK CONTROLS SYSTEM

 


TRADITIONAL CONTROL CABINET SIZE

 * Hundreds of terminal connections and wire routes are susceptible to error.
 * Typically 25-30% extra space is built into the control cabinet for future
   expansion.
 * Future expansion requires extensive knowledge to leverage existing cable
   runs.

 


SMALLER CONTROL CABINET USING IO-LINK

 * I/O is field mounted, so cabinet size is reduced.
 * Estimated 35% reduction in controls cost.
 * Estimated 60% reduction in commissioning time.

 


DISCRETE AND ANALOG SIGNALS

 * ON/OFF and analog signals from devices are susceptible to noise interference.
 * Digital to analog conversions degrade signal and accuracy from collection to
   final processing.

 


100% DIGITAL COMMUNICATION

 * Ethernet communication between the IO-Link master and PLC provides a
   bidirectional digital data highway.
 * No EMC interference or signal loss even with long cable runs.
 * Pure digital communication reduces data transmission and conversion errors.

 


TRADITIONAL SENSORS

 * If a sensor has multiple values, such as flow and temperature, each value
   requires its own wire for that output.
 * Connection requires home run cables or direct connection, often with hundreds
   of wire terminations.

 


UNLOCK THE POWER OF IO-LINK

 * Most new sensor technology already offers IO-Link communication without
   increasing the cost of the sensor.
 * An industry standard 3-wire cordset carries multiple process values, such as
   flow rate, temperature, history, and other diagnostics, over a single wire.
 * Automatic device replacement transfers configuration parameters from one
   sensor to another in seconds and minimizes downtime in the event of a sensor
   failure.


WHY HAS THIS TECHNOLOGY BEEN ACCEPTED SO QUICKLY?



The IO-Link communications protocol has grown tenfold over the last decade from
5 million installed nodes to more than 50 million installed nodes for a number
of reasons.


REDUCED COMPLEXITY

Scalable technology from simple binary on/ff devices up to smart IO-Link enabled
sensors provide complete process transparency that quickly integrates into
existing controls architecture.


REDUCED COST

Savings of approximately 50% per point on input cards without the need for
analog PLC cards.

With ifm, there is often no impact on sensor cost because the communication is
already available in most of our sensors.


MINIMAL CHANGES

Replacing analog communication requires few changes to controls architecture.
And, each device can be connected using standard 3-wire unshielded cabling.


IMPROVED PRODUCT QUALITY

The 100% digital signal is more accurate and reliable than an analog signal.
Processes are more repeatable. Predictive information from sensors provides
continuous instrument verification.


INCREASED EFFICIENCY

Bidirectional communication between the process instruments and the controller
allows for reduced cycle times for recipe changes.


IMPROVE MACHINE UPTIME

IO-Link enabled sensors minimize unplanned downtime to get machines up and
running faster. The automatic device replacement feature automatically downloads
parameters from an existing device onto a replacement device in seconds.




HOW DOES IO-LINK WORK?



IO-Link communicates bidirectionally with sensors, actuators, and other devices
connected to a master module using industry standard 3-wire cordsets. The master
sends commands to the devices and the devices send digital process data to the
master.

Since the process data is purely digital and there are no A/D conversion losses,
the data is more accurate and reliable. 

Most IO-Link enabled devices also transmit diagnostic data, such as run-time and
error codes to aid in predictive maintenance and improved process control.

Vist the Technology page for more details on how IO-Link works.




HOW DOES IO-LINK COMPARE TO OTHER COMMUNICATION TECHNOLOGIES?



IO-Link combines the best of all worlds with the functionality of analog signals
and intelligence of Ethernet communication at the cost of binary ON/OFF points.

  Sensor communication   Binary On/Off Analog IO-Link Ethernet based Amount of
data 1 bit 16 bits 32 bytes Many bytes Sensor diagnostics     Remote sensor
parameter adjustment     Automatic sensor parameter replacement     Standard
sensor cordsets   Digital communication     Complexity to integrate Cost


IO-LINK VS STANDARD ANALOG WIRING

Analog systems are still in use at many manufacturing facilities. But they
suffer from data and accuracy losses during the analog-to-digital conversion
process. IO-Link is completely digital. It avoids these losses even over long
distances.


IO-LINK VS. HART

HART protocol is well-known in the food and beverage, pharmaceutical, and
chemical industries. Like IO-Link, it provides bidirectional communication of
data between sensors and the controls system. HART transmits digital and analog
signals over cables. However, integrating HART requires specific programming
knowledge.


WHAT IS THE IFM IO-LINK ECOSYSTEM?



In the rapidly-evolving landscape of industrial technology and automation, ifm
is committed to innovation, efficiency, and conserving resources. We’re
dedicated to universal protocols and advancing interconnection between
ecosystems.

ifm is a founding member of the IO-Link consortium. This group works with
industry leaders to further the technology and integration, upholds quality
standards, holds workshops, and more. The consortium has more than 250 members
and counting.

We offer one of the largest selections of sensors and other IO-Link-compatible
devices. Our broad offering allows you to implement a comprehensive digital
communication system on all your machines and processes.

IO-Link consortium
 * Website
 * IODD finder


EDGEGATEWAYS

The edgeGateways from ifm provide secure remote connection to your IT
infrastructure for convenient data transfer to cloud platforms, such as ifm
moneo Cloud, Microsoft Azure IoT Hub, or AWS IoT Core.




CONTROLLERS

ifm's HMI controllers are programmable graphic displays for controlling,
parameterizing, and operating industrial machinery. One HMI controller can
replace a PLC, HMI, and multiple software licenses. IO-Link field devices can be
connected mechanically, versus labor-intensive wiring harnesses.




IO-LINK MASTERS

IO-Link masters provide solutions to acquire intelligent sensor data from
IO-Link enabled sensors and actuators. The IO-Link master establishes the
connection between one or several devices and the fieldbus system or higher
level IIoT platforms. 




IO-LINK HUB EXPANSION MODULES 

Machine control does not always require data acquisition. In many cases, simple
digital and analog I/O are still required. A hybrid approach is often the best
control solution.

The configurable IO-Link modules allow connection of conventional digital and
analog sensor and digital actuators via IO-Link.




SENSORS AND DEVICES

ifm offers one of the largest selections of sensors and other IO-Link-compatible
devices. These allow users to install flexible controls systems for their
manufacturing operations.

ifm also offers signal conversion devices to transform analog, binary, or RTD
signals into IO-Link, preparing your control system for IIoT.




IO-LINK STARTER KITS



Starter kits are an ideal choice for a fast proof-of-concept IO-Link project.
Our kits include all products you need to begin your testing. 


Kits with EtherNet/IP interface
ZZ1120
AL1120 4-port master, O5D150 laser distance sensor, cables, and power supply

IO-Link master starter kit - EtherNet/IP


List price:$453.00
Your price:Please log in
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ZH4338
AL1324 4-port master, O2I400 code reader, cables, and power supply

IO-Link master starter kit - O2I400 code reader


List price:$1,500.00
Your price:Please log in
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Kits with PROFINET interface
ZZ1100
AL1100 4-port master, O5D150 laser distance sensor, cables, and power supply

IO-Link master starter kit - PROFINET


List price:$453.00
Your price:Please log in
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ZH4339
AL1300 4-port master, O2I400 code reader, cables, and power supply

IO-Link master starter kit - O2I400 code reader


List price:$1,500.00
Your price:Please log in
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Kits with IIoT interface
ZZ0809
AL1350 4-port master, VVB001 vibration sensor, cables, and power supply

IO-Link VVB starter kit


List price:$663.50
Your price:Please log in
Add to favoritesCompare

ZZ1350
AL1350 4-port master, TV7105 temperature sensor, cables, and power supply

IO-Link master starter kit - MQTT JSON


List price:$453.00
Your price:Please log in
Add to favoritesCompare

Kit with EtherCAT interface
ZH4340
AL1330 4-port master, O2I400 code reader, cables, and power supply

IO-Link master starter kit - O2I400 code reader


List price:$1,500.00
Your price:Please log in
Add to favoritesCompare


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