Siemens SIMATIC MV540 H - Page 47

Image processing
3.3 Options for image acquisition and image processing
SIMATIC MV500
Operating Instructions, 06/2018, C79000-G8976-C494-01
47
Auto-trigger edge-triggered with timeout
In the following example, images are acquired with a rising edge of the trigger until an image
can be recognized and decoded, or until the timeout stops image acquisition.
①
Trigger initiates the operation.
②
Trigger signal is ignored.
a
Image acquisition time
b
Image acquisition interval
c
Limit of the decoding time
No code found.
Code found.
Figure 3-8 Time diagram: Auto-trigger with the "edge-triggered start/stop" option
Note
Duration of image acquisition interval and decoding time
Note that the image acquisition interval (b) is always the same length as the decoding time
limit (c).
Number of acquired images = {(Timeout/Acquisition interval)
- 1}