IO-Link – Communication standard for Industry 4.0<\/h1><\/div>In the age of rapid technological progress and the changing production landscape, efficient communication between devices and systems is playing an increasingly crucial role. The IO-Link communication standard is standardized in the IEC 61131-9 standard and has established itself as a cornerstone for Industry 4.0. It enables seamless and intelligent interaction between sensors, actuators and the control plane.<\/p>\n<\/div><\/div><\/div><\/div><\/div>
![\"Factory](\"data:image\/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%273000%27%20height%3D%271688%27%20viewBox%3D%270%200%203000%201688%27%3E%3Crect%20width%3D%273000%27%20height%3D%271688%27%20fill-opacity%3D%220%22%2F%3E%3C%2Fsvg%3E\")
<\/a><\/span>BITMOTECO Factory Data Hub<\/div> <\/p><\/div><\/div><\/div><\/div><\/div>
BITMOTECO Factory Data Hub<\/h3><\/div>Das modulare Factory Data Hub f\u00fcr Ihre Produktion<\/a> unterst\u00fctzt eine Vielzahl von Kommunikationsprotokollen und Industriestandards.<\/p>\n<\/div>- <\/i><\/span>\n\n\n\n\n
ROI in 6 Monaten<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li>
- <\/i><\/span>\n\n\n\n\n
Basis-System f\u00fcr weitere Optimierungen<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li>
- <\/i><\/span>\n\n\n\n\n
In k\u00fcrzester Zeit einsatzbereit<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li>
- <\/i><\/span>\n\n\n\n\n
F\u00fcr jede Maschine geeignet<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li>
- <\/i><\/span>\n\n\n\n\n
Datenhoheit ohne Cloudservice<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li><\/ul>
Jetzt Demo-Termin zur Abstimmung Ihres Testbetriebs vereinbaren.<\/p>\n<\/div>
Demo Termin vereinbaren<\/span><\/a><\/div><\/div><\/div><\/div><\/div>\nWhere is IO-Link used?<\/h2><\/div>The IO-Link communication standard has already established itself in the automation and manufacturing industry. Its main goal is to create a universal connection interface between sensors, actuators and the higher-level controllers. This unified communication layer then makes it possible to seamlessly integrate different components, regardless of their manufacturer. In addition, the communication standard makes it possible to bridge the gap between analog signals from sensors and digital data at the control level, resulting in optimized and responsive automation. <\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div>Do you want to learn more about the optimal communication standard for your use case? Simply arrange a free initial appointment:<\/p>\n<\/div>
Arrange a free initial appointment<\/span><\/a><\/div><\/div><\/div><\/div><\/div>What are the advantages of IO-Link in the industrial environment?<\/h2><\/div>The implementation of IO-Link brings a wealth of benefits in the industrial environment. A central aspect of this is the increased flexibility in the integration of components. <\/span>The unified interface allows sensors and actuators from different manufacturers to communicate with each other, which consequently makes it much easier to adapt and expand production equipment. This also helps to shorten the innovation cycle and subsequently accelerate the time-to-market for new products.<\/span>
\n<\/span><\/p>\nInteroperability<\/h3>\n
The availability of a diverse selection of IO-Link sensors allows companies to select the right components for their specific applications and thus make the most of the benefits of interoperability. From proximity switches to pressure sensors to temperature and level sensors, there are a variety of devices offered by different manufacturers.
\n<\/span><\/p>\nDiagnostic capability<\/h3>\n
Another significant advantage is the advanced diagnostic capability of IO-Link. Thanks to bidirectional communication, sensors can not only provide measured values, but also additional information about their condition and performance. This real-time data enables preventive maintenance<\/a> and consequently significantly improves plant availability. In addition, IO-Link simplifies the parameterization of devices, as settings can be made via the control level, but without having to physically intervene on site.<\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div>Do you need help with technical questions regarding IO-Link? With our know-how and our services, we can help you with your questions.<\/p>\n
Learn more about our services!<\/a><\/p>\nOr simply arrange a free initial appointment:<\/p>\n<\/div>
Arrange a free initial appointment<\/span><\/a><\/div><\/div><\/div><\/div><\/div>IO-Link communication<\/h2><\/div>The communication is based on a serial point-to-point connection between an IO-Link master and an IO-Link-enabled sensor or actuator. This connection is made via conventional three-wire wired cables and thus enables reliable transmission of digital data and commands. The basic communication protocol is based on an asynchronous, half-duplex procedure in which telegrams are used that consist of a start bit, data bits, parity bit and a stop bit. This structure ensures reliable and error-free transmission of data, while communication takes place at cyclic intervals, with the IO-Link master requesting data from the connected devices.<\/span>
\n<\/span><\/p>\nDifferent communication classes of the IO-Link standard<\/h3>\n
Communication always starts with a \"wake-up\" event, followed by a \"start-up\" message from the master to determine the supported speed of the device. Further communication parameters are read, as well as the manufacturer ID and device ID are checked in order to finally validate the communication. Within the standard, three transmission speeds are specified, known as communication classes: COM1, COM2, and COM3. Each class offers different speeds, making it suitable for specific application requirements.<\/span><\/p>\nCOM1:<\/span><\/b> COM1 is the slowest class of communication. It is characterized by longer communication cycles, which are particularly relevant for applications where stability and precision play a greater role than a fast refresh rate. The transmission speed of COM1 is 4.8 kbit\/s.<\/span><\/p>\nCOM2:<\/span><\/b> COM2, on the other hand, offers medium transfer speeds. It is suitable for applications that require a good balance between speed and precision. The transmission speed of COM2 is 38.4 kbit\/s. This speed class can be used by processes that require a higher amount of process data.<\/span><\/p>\nCOM3:<\/span><\/b> The COM3 speed class offers the highest transmission speed in the IO-Link standard. It is characterized by the shortest cycle times and is therefore particularly relevant for applications where a high speed of data refresh is crucial. The transmission speed of COM3 is 230.4 kbit\/s.<\/span>
\n<\/span><\/p>\nFlexible communication thanks to IO-Link<\/h3>\n
The selection of the appropriate communication class depends on the individual requirements of the application. The flexibility of these different speeds makes it possible to find the optimal balance between speed, precision and data transfer rate. Overall, the different communication classes contribute to the fact that IO-Link communication can ultimately be efficiently adapted to the respective application needs.<\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div>How can sensor readings be accessed?<\/h2><\/div>The transmitted data is accessed via the IO-Link master. This intelligent gateway thus acts as an interface between the sensors and actuators on the one hand and the higher-level controller on the other. The IO-Link master not only collects data from the connected devices, but also translates it into a format that is understandable for the controller. Consequently, this enables a smooth integration of the data into the production process and subsequently opens up various possibilities for comprehensive analysis and monitoring during the running process.<\/span><\/p>\nThe different IO-Link masters each support different communication protocols for connecting to the controller. These protocols can include Ethernet-based standards such as Profinet, EtherNet\/IP, Modbus TCP or MQTT, but also fieldbuses such as Profibus or DeviceNet. The choice of protocol always depends on the requirements of the application and the company’s pre-existing infrastructure. This enables seamless integration of IO-Link devices into existing networks and facilitates communication between the components of the automation systems.<\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div>We use our expertise to discuss suitable communication protocols and industry standards<\/a> for your application and implement your solution easily with our Factory Data Hub<\/a>:<\/p>\n<\/div>
In the age of rapid technological progress and the changing production landscape, efficient communication between devices and systems is playing an increasingly crucial role. The IO-Link communication standard is standardized in the IEC 61131-9 standard and has established itself as a cornerstone for Industry 4.0. It enables seamless and intelligent interaction between sensors, actuators and the control plane.<\/p>\n<\/div><\/div><\/div><\/div><\/div>
![\"Factory](\"https:\/\/www.bitmotec.com\/wp-content\/uploads\/Bitmoteco_platform_integration-scaled.jpg\")
<\/a><\/span><\/p><\/div><\/div><\/div><\/div><\/div>
BITMOTECO Factory Data Hub<\/h3><\/div>Das modulare Factory Data Hub f\u00fcr Ihre Produktion<\/a> unterst\u00fctzt eine Vielzahl von Kommunikationsprotokollen und Industriestandards.<\/p>\n<\/div>- <\/i><\/span>\n\n\n\n\n
ROI in 6 Monaten<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li>
- <\/i><\/span>\n\n\n\n\n
Basis-System f\u00fcr weitere Optimierungen<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li>
- <\/i><\/span>\n\n\n\n\n
In k\u00fcrzester Zeit einsatzbereit<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li>
- <\/i><\/span>\n\n\n\n\n
F\u00fcr jede Maschine geeignet<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li>
- <\/i><\/span>\n\n\n\n\n
Datenhoheit ohne Cloudservice<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li><\/ul>
Jetzt Demo-Termin zur Abstimmung Ihres Testbetriebs vereinbaren.<\/p>\n<\/div>
Demo Termin vereinbaren<\/span><\/a><\/div><\/div><\/div><\/div><\/div>\nWhere is IO-Link used?<\/h2><\/div>The IO-Link communication standard has already established itself in the automation and manufacturing industry. Its main goal is to create a universal connection interface between sensors, actuators and the higher-level controllers. This unified communication layer then makes it possible to seamlessly integrate different components, regardless of their manufacturer. In addition, the communication standard makes it possible to bridge the gap between analog signals from sensors and digital data at the control level, resulting in optimized and responsive automation. <\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div>Do you want to learn more about the optimal communication standard for your use case? Simply arrange a free initial appointment:<\/p>\n<\/div>
Arrange a free initial appointment<\/span><\/a><\/div><\/div><\/div><\/div><\/div>What are the advantages of IO-Link in the industrial environment?<\/h2><\/div>The implementation of IO-Link brings a wealth of benefits in the industrial environment. A central aspect of this is the increased flexibility in the integration of components. <\/span>The unified interface allows sensors and actuators from different manufacturers to communicate with each other, which consequently makes it much easier to adapt and expand production equipment. This also helps to shorten the innovation cycle and subsequently accelerate the time-to-market for new products.<\/span>
\n<\/span><\/p>\nInteroperability<\/h3>\n
The availability of a diverse selection of IO-Link sensors allows companies to select the right components for their specific applications and thus make the most of the benefits of interoperability. From proximity switches to pressure sensors to temperature and level sensors, there are a variety of devices offered by different manufacturers.
\n<\/span><\/p>\nDiagnostic capability<\/h3>\n
Another significant advantage is the advanced diagnostic capability of IO-Link. Thanks to bidirectional communication, sensors can not only provide measured values, but also additional information about their condition and performance. This real-time data enables preventive maintenance<\/a> and consequently significantly improves plant availability. In addition, IO-Link simplifies the parameterization of devices, as settings can be made via the control level, but without having to physically intervene on site.<\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div>Do you need help with technical questions regarding IO-Link? With our know-how and our services, we can help you with your questions.<\/p>\n
Learn more about our services!<\/a><\/p>\nOr simply arrange a free initial appointment:<\/p>\n<\/div>
Arrange a free initial appointment<\/span><\/a><\/div><\/div><\/div><\/div><\/div>IO-Link communication<\/h2><\/div>The communication is based on a serial point-to-point connection between an IO-Link master and an IO-Link-enabled sensor or actuator. This connection is made via conventional three-wire wired cables and thus enables reliable transmission of digital data and commands. The basic communication protocol is based on an asynchronous, half-duplex procedure in which telegrams are used that consist of a start bit, data bits, parity bit and a stop bit. This structure ensures reliable and error-free transmission of data, while communication takes place at cyclic intervals, with the IO-Link master requesting data from the connected devices.<\/span>
\n<\/span><\/p>\nDifferent communication classes of the IO-Link standard<\/h3>\n
Communication always starts with a \"wake-up\" event, followed by a \"start-up\" message from the master to determine the supported speed of the device. Further communication parameters are read, as well as the manufacturer ID and device ID are checked in order to finally validate the communication. Within the standard, three transmission speeds are specified, known as communication classes: COM1, COM2, and COM3. Each class offers different speeds, making it suitable for specific application requirements.<\/span><\/p>\nCOM1:<\/span><\/b> COM1 is the slowest class of communication. It is characterized by longer communication cycles, which are particularly relevant for applications where stability and precision play a greater role than a fast refresh rate. The transmission speed of COM1 is 4.8 kbit\/s.<\/span><\/p>\nCOM2:<\/span><\/b> COM2, on the other hand, offers medium transfer speeds. It is suitable for applications that require a good balance between speed and precision. The transmission speed of COM2 is 38.4 kbit\/s. This speed class can be used by processes that require a higher amount of process data.<\/span><\/p>\nCOM3:<\/span><\/b> The COM3 speed class offers the highest transmission speed in the IO-Link standard. It is characterized by the shortest cycle times and is therefore particularly relevant for applications where a high speed of data refresh is crucial. The transmission speed of COM3 is 230.4 kbit\/s.<\/span>
\n<\/span><\/p>\nFlexible communication thanks to IO-Link<\/h3>\n
The selection of the appropriate communication class depends on the individual requirements of the application. The flexibility of these different speeds makes it possible to find the optimal balance between speed, precision and data transfer rate. Overall, the different communication classes contribute to the fact that IO-Link communication can ultimately be efficiently adapted to the respective application needs.<\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div>How can sensor readings be accessed?<\/h2><\/div>The transmitted data is accessed via the IO-Link master. This intelligent gateway thus acts as an interface between the sensors and actuators on the one hand and the higher-level controller on the other. The IO-Link master not only collects data from the connected devices, but also translates it into a format that is understandable for the controller. Consequently, this enables a smooth integration of the data into the production process and subsequently opens up various possibilities for comprehensive analysis and monitoring during the running process.<\/span><\/p>\nThe different IO-Link masters each support different communication protocols for connecting to the controller. These protocols can include Ethernet-based standards such as Profinet, EtherNet\/IP, Modbus TCP or MQTT, but also fieldbuses such as Profibus or DeviceNet. The choice of protocol always depends on the requirements of the application and the company’s pre-existing infrastructure. This enables seamless integration of IO-Link devices into existing networks and facilitates communication between the components of the automation systems.<\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div>We use our expertise to discuss suitable communication protocols and industry standards<\/a> for your application and implement your solution easily with our Factory Data Hub<\/a>:<\/p>\n<\/div>
Das modulare Factory Data Hub f\u00fcr Ihre Produktion<\/a> unterst\u00fctzt eine Vielzahl von Kommunikationsprotokollen und Industriestandards.<\/p>\n<\/div> ROI in 6 Monaten<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li> Basis-System f\u00fcr weitere Optimierungen<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li> In k\u00fcrzester Zeit einsatzbereit<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li> F\u00fcr jede Maschine geeignet<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li> Datenhoheit ohne Cloudservice<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/li><\/ul> Jetzt Demo-Termin zur Abstimmung Ihres Testbetriebs vereinbaren.<\/p>\n<\/div> The IO-Link communication standard has already established itself in the automation and manufacturing industry. Its main goal is to create a universal connection interface between sensors, actuators and the higher-level controllers. This unified communication layer then makes it possible to seamlessly integrate different components, regardless of their manufacturer. In addition, the communication standard makes it possible to bridge the gap between analog signals from sensors and digital data at the control level, resulting in optimized and responsive automation. <\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div><\/div> Do you want to learn more about the optimal communication standard for your use case? Simply arrange a free initial appointment:<\/p>\n<\/div> The implementation of IO-Link brings a wealth of benefits in the industrial environment. A central aspect of this is the increased flexibility in the integration of components. <\/span>The unified interface allows sensors and actuators from different manufacturers to communicate with each other, which consequently makes it much easier to adapt and expand production equipment. This also helps to shorten the innovation cycle and subsequently accelerate the time-to-market for new products.<\/span> The availability of a diverse selection of IO-Link sensors allows companies to select the right components for their specific applications and thus make the most of the benefits of interoperability. From proximity switches to pressure sensors to temperature and level sensors, there are a variety of devices offered by different manufacturers. Another significant advantage is the advanced diagnostic capability of IO-Link. Thanks to bidirectional communication, sensors can not only provide measured values, but also additional information about their condition and performance. This real-time data enables preventive maintenance<\/a> and consequently significantly improves plant availability. In addition, IO-Link simplifies the parameterization of devices, as settings can be made via the control level, but without having to physically intervene on site.<\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div> Do you need help with technical questions regarding IO-Link? With our know-how and our services, we can help you with your questions.<\/p>\n Learn more about our services!<\/a><\/p>\n Or simply arrange a free initial appointment:<\/p>\n<\/div> The communication is based on a serial point-to-point connection between an IO-Link master and an IO-Link-enabled sensor or actuator. This connection is made via conventional three-wire wired cables and thus enables reliable transmission of digital data and commands. The basic communication protocol is based on an asynchronous, half-duplex procedure in which telegrams are used that consist of a start bit, data bits, parity bit and a stop bit. This structure ensures reliable and error-free transmission of data, while communication takes place at cyclic intervals, with the IO-Link master requesting data from the connected devices.<\/span> Communication always starts with a \"wake-up\" event, followed by a \"start-up\" message from the master to determine the supported speed of the device. Further communication parameters are read, as well as the manufacturer ID and device ID are checked in order to finally validate the communication. Within the standard, three transmission speeds are specified, known as communication classes: COM1, COM2, and COM3. Each class offers different speeds, making it suitable for specific application requirements.<\/span><\/p>\n COM1:<\/span><\/b> COM1 is the slowest class of communication. It is characterized by longer communication cycles, which are particularly relevant for applications where stability and precision play a greater role than a fast refresh rate. The transmission speed of COM1 is 4.8 kbit\/s.<\/span><\/p>\n COM2:<\/span><\/b> COM2, on the other hand, offers medium transfer speeds. It is suitable for applications that require a good balance between speed and precision. The transmission speed of COM2 is 38.4 kbit\/s. This speed class can be used by processes that require a higher amount of process data.<\/span><\/p>\n COM3:<\/span><\/b> The COM3 speed class offers the highest transmission speed in the IO-Link standard. It is characterized by the shortest cycle times and is therefore particularly relevant for applications where a high speed of data refresh is crucial. The transmission speed of COM3 is 230.4 kbit\/s.<\/span> The selection of the appropriate communication class depends on the individual requirements of the application. The flexibility of these different speeds makes it possible to find the optimal balance between speed, precision and data transfer rate. Overall, the different communication classes contribute to the fact that IO-Link communication can ultimately be efficiently adapted to the respective application needs.<\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div> The transmitted data is accessed via the IO-Link master. This intelligent gateway thus acts as an interface between the sensors and actuators on the one hand and the higher-level controller on the other. The IO-Link master not only collects data from the connected devices, but also translates it into a format that is understandable for the controller. Consequently, this enables a smooth integration of the data into the production process and subsequently opens up various possibilities for comprehensive analysis and monitoring during the running process.<\/span><\/p>\n The different IO-Link masters each support different communication protocols for connecting to the controller. These protocols can include Ethernet-based standards such as Profinet, EtherNet\/IP, Modbus TCP or MQTT, but also fieldbuses such as Profibus or DeviceNet. The choice of protocol always depends on the requirements of the application and the company’s pre-existing infrastructure. This enables seamless integration of IO-Link devices into existing networks and facilitates communication between the components of the automation systems.<\/span><\/p>\n<\/div><\/div><\/div><\/div><\/div> We use our expertise to discuss suitable communication protocols and industry standards<\/a> for your application and implement your solution easily with our Factory Data Hub<\/a>:<\/p>\n<\/div>Where is IO-Link used?<\/h2><\/div>
What are the advantages of IO-Link in the industrial environment?<\/h2><\/div>
\n<\/span><\/p>\nInteroperability<\/h3>\n
\n<\/span><\/p>\nDiagnostic capability<\/h3>\n
IO-Link communication<\/h2><\/div>
\n<\/span><\/p>\nDifferent communication classes of the IO-Link standard<\/h3>\n
\n<\/span><\/p>\nFlexible communication thanks to IO-Link<\/h3>\n
How can sensor readings be accessed?<\/h2><\/div>