Hold Function - Leuze electronic CML 720i Ex Operating Instructions Manual

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Figure 4.5: Evaluation functions
Also included among the evaluation functions are:
• the status of beam areas 1 ... 32
• the status of the digital inputs/outputs
For the beam area mappings to an output pin or the status of the digital inputs/outputs, see chapter 4.10.
4.5

Hold function

The setting of the hold times is performed via the respective fieldbus interface (see chapter 9 et
seq.) or via the
The minima and maxima of the following evaluation functions can be temporarily stored for an adjustable
period of time via this function:
• First interrupted beam (FIB)
• First not interrupted beam (FNIB)
• Last interrupted beam (LIB)
• Last not interrupted beam (LNIB)
• Total of interrupted beams (TIB)
• Total of not interrupted beams (TNIB)
• Single-beam evaluation (beam-stream): A beam that has been interrupted once is kept at logical 0 in
the output bit until the hold time has expired.
Temporary storage simplifies the reading out of the measurement results if the used control cannot
transmit the data at the same speed that the light curtain makes the data available.
4.6 Blanking
If light curtains are installed such that existing frames / cross bars etc. continuously interrupt some beams,
these beams must be suppressed.
During blanking, beams that are not to be included in the evaluation are suppressed. The numbering of
the beams is not affected, i.e., the suppression of beams does not change the beam numbers.
Leuze electronic
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Total of interrupted beams (TIB)
Total of not interrupted beams (TNIB)
Last interrupted beam (LIB)
Last not interrupted beam (LNIB)
First not interrupted beam (FNIB)
First interrupted beam (FIB)
Sensor Studio
configuration software (see chapter 12).
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CML 720i Ex
Functions
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