System overview
2.2 Overview of IO-Link system
IO-Link system
Function Manual, 12/2017, A5E31637677-AB
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The IO-Link master establishes the connection between the IO-Link devices and the
automation system. If the IO-Link master is a component of the I/O system, it is installed
either in the control cabinet or directly in the field as remote I/O in degree of protection
IP65/67. The IO-Link master communicates by means of various fieldbuses or product-
specific backplane buses. An IO-Link master can have multiple IO-Link ports (channels). An
IO-Link device can be connected (point-to-point communication) to each port.
The IO-Link system is engineered parallel to the overall automation system and can be
embedded in it and intermeshed with it.
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