IO-Link as an enabler for Industry 4.0

Seamless access to all IO-Link devices in the network

Balluff: Industry 4.0 is implementing not only the intelligent networking of process devices, but also the linking of the manufacturing management level with the IT and company management levels. Seamless communication from the sensor all the way to the In-ternet is an essential prerequisite for this. For some years now it has been possible to easily integrate IO-Link process devices into comprehensive system concepts. The fieldbus-independent point-to-point connection transmits signals and data of all kinds in both directions via a simple three-wire cable. 

In a project study at HM, Balluff illustrates how software enables di-rect access to the bottom device level: All IO-Link process devices within a system can be centrally monitored, configured and tested via UDP (user datagram protocol) from nearly any point and in parallel with the control system. A logical step on the path towards flexible production processes and integrated network management.

The software tool based on IO-Link presents a clear overview of all peripheral devices and allows direct access to parameter, configura-tion and diagnostic information for sensors and actuators. This tool can be used to modify, reconfigure and test configuration settings for complex pressure and laser distance sensors or to call up production-related data (all from a central location).

In the near future, this solution will be an integrated component of comprehensive network management systems within the automation pyramid. Network management systems still represent only those system components that have their own IP address. Usually this means down to the master level and does not include the diverse landscape of devices at the process level as a result. This will soon change, because in the future it will also be possible to integrate non-IP-capable IO-Link devices into network management systems. Be-cause of this, it will be possible to implement multi-device configura-tions, update software, handle fault messages and run both static and dynamic system diagnostics down to the field level from almost any point on Earth.