IO-Link - principles and technology
IO-Link is the world’s first standardized IO technology (IEC 61131-9) for communicating with sensors and actuators. The system components are an IO-Link master and an IO-Link device: a sensor, an actuator or a combination of both.
The IO-Link master is a component of an I/O assembly either in the control cabinet or directly in the field as a remote I/O with an IP 65/67 enclosure rating. The IO-Link device is coupled with the master using a standard sensor/actuator cable measuring up to 20 m in length. It produces and consumes signals (binary switching, analog input/output) that are transmitted directly via IO-Link in a digitized format.