A 3-conductor cable connections establishes communication in the form of a serial protocol between the field and control level. M12 connectors are primarily used for the wiring however M5 and M8 connectors can be used as well. The communication sends process, configuration and identification data over IO-link. This also includes parameters and can help prepare for Industry 4.0 technology.
IO-Link devices are able to self-diagnose. Meaning, in the instance of a device requiring a replacement, this technology reduces commissioning time and downtime which in-turn increases productivity. Each IO-Link device has an IODD (IO Link Device Description) that contains information about the manufacturer, functionality and more. The user can then easily read and process this information.