IO-Link basics
IO-Link is a communication system for connecting intelligent sensors and actuators to an automation system. The IEC 61131-9 standard specifies IO-Link under the designation "Single-drop digital communication interface for small sensors and actuators" (SDCI).
Both the electrical connection data and the communication protocol are standardized and summarized in the IO-Link Spec.
 | IO-Link specification The development of the Beckhoff EL6224/EJ6224 IO-Link master was subject to the IO-Link specification 1.1. At the time of the preparation of this documentation, the IO-Link specification is entering the IEC standardization and will be adopted in extended form as IEC 61131-9. The new designation SDCI will be introduced at the same time. |