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Vision Sensor SBSI/SBSC-EN, 8062650 - 1607b - 13/09/2016
Vision Sensor Manual
Fig. 186: Output timing, standard sequence at normal trigger
4.6.4.5.1.2 Trigger delay active
(Trigger delay concerns hardware trigger only)
This setting is used to delay the image capturing / start of evaluation against the real physical trigger, which
was e.g. caused by a light barrier or by the PLC. With this function the fine tuning of the trigger point in
time can be done without any change in mechanics or PLC programming.
Sequence:
Image is taken after the trigger delay time is elapsed. The cycle time is trigger delay time + evaluation time.
s. Vision Sensor Configuration Studio/Output/Timing/Trigger/Delay
l
Rising edge at Trigger input (Pin03 WH)
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Consequence of Trigger = high: Ready = low, Valid = low, all defined result outputs = low (Signalling =
Change on trigger)
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Before the image for evaluation is taken, the adjusted Trigger delay time elapses.
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Now the evaluation starts. As soon as the results are valid the outputs change to the according logical
levels. Ready and Valid are set to high again. (ready for next task, outputs valid)
Fig. 187: Output timing, and Trigger delay
4.6.4.5.1.3 Trigger delay + Result delay (here: Ejector only):
(Trigger delay concerns hardware trigger only)
The result delay (if for all outputs or ejector only) is used to fine tune the ejector point in time,
independent from evaluation time, as especially the evaluation time can have slight variations.
Sequence:
Image is taken after the trigger delay time is elapsed. Furthermore the Result delay is active, but in this
example just for the ejector output (pin 12 RDBU)
For all defined result outputs, except the ejector output the cycle time is: Trigger delay time + evaluation
time.
For the ejector output the cycle time is: Result delay only! (Counted from trigger, only make sense if
longer than summation of above mentioned times!) s. Vision Sensor Configuration
Studio/Output/Timing/Output/Delay.
Summary of Contents for SBSC-EN
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