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SYSTEM DESCRIPTION
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8026365/V1-0/2022-03|SICK
S U P P L E M E N T A R Y O P E R A T I N G I N S T R U C T I O N S | VMS4200-x/5200-x MID
Subject to change without notice
Fig. 12: Triggering of recording of measured values
Legend
1
Cross-belt signal
2
Leading edge of the carrier
3
Reading interval
4
No signal when the cross-belt conveyor element is empty
•
In the system variant without object detection, the measurement process is activated
by the cross-belt signal. The customer transmits a signal for the leading edge of the
carrier to the SIM2000-2 Prime controller.
•
The cross-belt signal is only activated if the cross-belt conveyor element is occupied.
No signal is delivered for cross-belt conveyor elements that are empty.
•
The cross-belt signal activates the LiDAR sensors and opens the internal reading
interval.
•
The reading gate determines the start and end of the measuring process. It
corresponds to the trigger length in the conveying direction.
•
The measuring process lasts for as long as the reading gate is open, regardless of
whether the object is entering or leaving the scanning line.
•
The system increment is determined by evaluating the incremental signals of the
photoelectric sensor array. This can then be used to establish the exact position of the
object on the conveyor relative to the cross-belt signal (see item 1 in the above figure).
•
This information is required to calculate the length information and for correct
assignment of the measurement results to the object.
Triggering of
recording of
measured values
without object
detection
Object tracking