Image Acquisition In Program Sequence Mode - Siemens SIMATIC MV540 H Operating Instructions Manual

Optical identification
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Figure 3-10
3.3.4

Image acquisition in program sequence mode

How it works
You can enable the "Program sequence" option under "Settings > Options > Extras". With
this option, you can evaluate several image acquisitions with different image settings for
each trigger, if, for example:
● Objects have a very large dynamic range in terms of contrast and reflectance, that cannot
be covered with one image acquisition setting.
● Codes or plain text must be searched for and read at different, defined positions.
● Multiple (different) processing procedures (for example, with different program settings)
are to be performed for each object.
● The number of definable program steps of an individual program is not sufficient.
Processing attempts
In "Program sequence" mode, processing is attempted with up to five saved codes for each
trigger. With the default setting, a separate image is acquired and evaluated with the settings
saved in this program for each program in the program sequence. Following the first
successful evaluation, processing of the trigger is stopped and the result is output.
SIMATIC MV500
Operating Instructions, 06/2018, C79000-G8976-C494-01
Trigger initiates the operation.
Trigger signal is ignored.
Image acquisition time
Image acquisition interval
Limit of the decoding time
No code found.
Code found.
Time diagram: Scan with the "Edge-triggered start/stop" option
3.3 Options for image acquisition and image processing
Image processing
49

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