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IO-Link Wireless specification completed

25 April 2018

The IO-Link community has completed work on the specifications for IO-Link Wireless and has published an approved version.

IO-Link is the first technology for communicating with sensors and actuators below the fieldbus level to be adopted as an international standard (IEC 61131-9). This technology has now been expanded to include wireless communication.

IO-Link Wireless defines wireless communication between sensors/actuators and controllers in the industrial automation environment. Performance, functionality and capacity are comparable to cable-bound solutions. IO-Link Wireless offers real-time latency of 5ms for communication with up to 40 devices (sensors and actuators). Reliability lies above a packet-error rate (PER) of 10.

It supports roaming functions and the option of using battery-operated or energy-harvesting sensors with minimal energy consumption in a real-time network. An important feature is its compatibility with industry and process-automation protocols. Planning, commissioning, operation and maintenance can all be carried out using standard IO-Link tools.