What is SIO?

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Top answer

SIO is single input or single output. Each port is defined as an input or output.

In the IO-Link SIO (standard IO - input/output or SIO mode) mode, the sensors are operating according to the factory-issued settings or the settings that are adjusted via IO-Link.

The functions range in SIO mode is specific to the sensor, periodically exchanging data between the IO-Link master and device.

In the SIO mode the types of sensors that can be connected are the following:

PNP output binary sensors CAN be connected
NPN output sensors CAN NOT be connected

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