V01.01 | 2021/09
9
4.2
Properties and features
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Rectangular, aluminum/plastic
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Versatile mounting possibilities
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Measuring range indication via LED
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Immune to electromagnetic interference
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Short blind zones
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Process value in 32-bit IO-Link telegram
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15…30 VDC
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Male connector, M12 × 1, 4-pin
4.3
Operating principle
The LI-Q25L linear position sensors have contactless operation based on the inductive resonant
circuit measuring principle. Measuring is immune to magnetic fields as the positioning element
is not based on a magnet but on a coil system. Sensor and positioning element form an induct-
ive measuring system. An induced voltage generates appropriate signals in the receiver coils of
the sensor, depending on the location of the positioning element. The signals are evaluated in
the internal 16-bit processor of the sensor output via the IO-Link interface.
4.4
Functions and operating modes
4.4.1
IO-Link mode
The devices must be connected to an IO-Link master for operation in IO-Link mode. If the port is
configured in IOL mode, bidirectional IO-Link communication is provided between the IO-Link
master and the device. For this the device is integrated in the controller level via an IO-Link
master. The communication parameters are exchanged first of all; the cyclic data exchange of
the process data (process data objects) then starts.
4.4.2
Output curve
The gradient of the output characteristic also stays the same when the measuring range is
changed. The end point of the measuring range stays the same.
0
New 0-
point
End
Fig. 3: Measuring range
