SIOL-EI8B-USER-M
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Version 1, May 2022
3.2. IO-Link
IO-Link is a standardized protocol that enables connection of intelligent devices (sensors and actuators)
to an automation system.
Communication takes place between an IO-Link master and one or more IO-Link devices. A master
module has one or more ports and one device can be connected to each port. IO-Link is a point-to-point
communication system and is not a eldbus.
The IO-Link master module is the interface between the controller and the IO-Link system.
IO-Link mode (IOL)
IO-Link communication (C/Q) is activated on pin 4 and an IOL device can thus be connected.
For further information, refer to Section 8.3, “IO-Link conguration”.
Fig. 3-3: IO-Link
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