IFM OPD101, Operating Instructions Manual

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OPD101
7
In the next step, the sensor continually detects height profiles, compares them to the activated
reference profile and generates a matching value. Now the user can set a switching threshold.
Interpretation of the matching value (
Ò /
7).
2
3
4
1
0
150
300
ROI
Fig. 2: Height profile
1: X axis in [mm]
2: Z axis in [mm]
3: sensor
4: taught reference profile
3.1.2 Normal operation
In normal operation, the sensor detects height profiles, continually or upon triggering, and compares
them to the activated reference profile in order to generate a matching value.
If the ”Vision Assistant” software is used, high-resolution images of the profiles are transmitted
additionally. Operation with the “Vision Assistant“ parameter setting software and an IO-Link master
(
Ò / 10). The height profiles are referred to the max. measuring distance = 300 mm (reference
height).
The reference point for the reference height is the optical zero point of the transmitter. It is inside the
sensor.
Example: The distance between the sensor and the object is approx. 200 mm. In the “Vision Assistant”
software, the height profile has a base height of approx. 100 mm.
• Profile heights are referred to the reference height and therefore have positive absolute values.
• All data sheet indications refer to the dimensions of the object profiles and not to the absolute
distances between them and the sensor. The object profiles are displayed with real dimensions
(object profile width/height) regardless of the object profile's position in the operating range.
3.2 Interpretation of the matching value
The measured height profile (in the following also referred to as “profile”) is compared internally to an
activated reference profile. The degree of match is generated as an internal measured value
(matching value).
The measured value determined by the sensor hence describes the degree of match between the
measured profile and the activated reference profile.
Matching value provided in [%] Description
100 There is a 100 % match between the measured profile and
the activated reference profile.
GB