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IO-Link Protocol

Authors:
Geoffrey Hunter
Geoffrey Hunter
Published On:
Apr 22, 2015
Last Updated:
Sep 9, 2024

The IO-Link protocol is a point-to-point serial communication protocol which is commonly used for sensor and actuator communication in an industrial environment.

The IO-Link logo1.

Packet Types

Process Data

Process data is sent every communication cycle (typically 2ms).

Service Data

Service data is used to send large amounts of non-periodic data at the request of the recipient.

Events

Events are unsolicited messages that convey information such as alarm status or info.

Footnotes

  1. Profinet. IO-LInk Technology. Retrieved 2024-09-09, from https://us.profinet.com/technology/io-link/. ↩