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Rockwell Automation Publication 42EF-UM001A-EN-P - September 2015
42EF RightSight Sensor with IO-Link Overview
42EF IO-Link Features
The 42EF VisiSight™ communicates the following parameters via IO-Link:
Sensor Heartbeat feature helps ensure excellent reliability operation by
indicating to the PLC if a sensor has lost connectivity due to sensor failure or
faulty wiring.
Margin Low Alarm minimizes downtime by indicating when the sensor is about
to fail due to insufficient light being reflected.
Signal Strength provides the raw measurement value of the amount of light
reflected from the target.
Margin Levels displays the excess gain above the sensor threshold to help ensure
reliable detection of the target.
Contrast Levels displays the difference between the light signal levels that the
sensor read the last time the output was ON versus the last time the output was
OFF. This helps identify that there is enough difference between the target and
the background.
Margin Low and High Indication Multipliers allow for specifying the minimum
margin levels when the local indication LED indicates marginal conditions and
stable conditions.
Location Indication helps locate the sensors in large machines where there are
several units close to each other.
