Rockwell Automation Publication 42EF-UM001A-EN-P - September 2015 47
Exploring the 42EF IO-Link Parameters
Proximity: Displays the status of the proximity alarm. This process data element
is a bit that indicates if there is an object in close proximity to the threshold
(below 1.0X) when the output is OFF.
Gain: Displays the excess gain above the sensor threshold to ensure reliable
detection
of the target.
Signal: Provides
the raw measurement value of the amount of light reflected
from the target.
Triggered MarginLowAlarm Description
0 0
No target is present
0 1
No target present, item in background is very close to the sensor
threshold
1 0
Target is present and sensor signal is not marginal
1 1
Target is present and signal strength is marginal (0.5x < signal < 2X)
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