42 Rockwell Automation Publication 42EF-UM001A-EN-P - September 2015
Exploring the 42EF IO-Link Parameters
Location Indicator: This parameter activates the location indication sensor
functionality. When enabled, the sensor user interface (green and orange LEDs)
start flashing synchronously until the operator disables this function. This
parameter is ideal for applications where the operator needs to locate a sensor in
the application where there may be multiple sensors in close proximity.
LEDs Enable: This
parameter allows operators to turn OFF or turn ON the
User Interface LEDs (green and orange LEDs). This parameter is ideal for
applications where turning OFF the LEDs is desired to accommodate the
application.
Alignment Mode: This parameter
changes the sensor user interface to operate
in alignment mode. The alignment mode uses the green and orange LEDs of the
sensor to visually indicate the strength of the light signal that is reflected back
from the object. Upon entering this mode, the green LED will have a low
visibility if no target is present (or no reflector is seen) and will slowly dim to a
brighter state until a maximum brightness is reached depending on how much
light is the target reflecting back to the sensor. When the maximum brightness is
reached, the orange LED will change duty cycle from 10…90%. The table below
describes the User Interface behavior while operating in Alignment Mode:
The alignment mode can be enabled for an indefinite amount of time or enabled
for limited intervals
of 120 and 240 seconds.
Error Count: Displaces the amount of
errors.
Device Status: Displaces the status of the devic
e.
Last Event: Displaces
the code for the last event initiated by the sensor.
Operation Information: In
this section, the operator is able to monitor the
sensor operating hours since inception and power up.
Operating Hours: Since Ince
ption: displays the total operating hours that the
sensor has been running since the first time it was powered ON. This value is not
lost during factory reset. The information displayed in this parameter is
represented in hours.
Operating Hours: Since Ince
ption: displays the total operating hours that the
sensor has been running since the last time the sensor power was cycled. This
value is reset to zero every time the sensor loses power.
Temperature: In this
section, the operator is able to monitor the actual,
minimum and maximum internal temperature of the sensor.
Green LED Orange LED Target State Triggered Status
Low Intensity Flashing at 1 Hz with 10% duty cycle Not enough light reflection. Signal
level is below threshold Sensor Output is OFF
Medium Intensity Flashing at 1 Hz with 10% duty cycle Some light being reflected from target. Signal level is below threshold Sensor Output is OFF
High Intensity Flashing at 1 Hz with 90% duty cycle
Optimal amount of light reflected from tar
get. Signal level is above
threshold.
Sensor Output is ON
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