IO-Link communication covers the "last meters" to the industrial end device, e.g. a sensor or an actuator, as a point-to-point connection. The connection of the end devices is carried out via an intermediary IO-Link-Master and at least a 3-core cable with standardised connectors.
The majority of end devices can be powered directly via the mains power of 24V.
IO-Link sensors and actuators can be connected to different fieldbus systems, if an appropriate IO-Link master gateway is available. Cost effective microcontrollers allow integration of more sophisticated functionality, even into simple devices. IO-Link offers a standardized method to access these functions.
International standardization according to ISO 61131-9 guarantees extensive compatibility between devices from different manufacturers. The advantages of IO-Link are based on three points: