Siemens SIMATIC MV500 Operating Manual page 34

Application
5.1 Program
Table 5- 14 Options if "Scan" is selected
Parameter Possible values
Acquisition interval Minimum image acqui-
sition interval
15 ... 100000 ms
Decoding time limit Minimum decoding
time
7 ... 100000 ms
Number of ac-
SIMATIC MV500 S/
•
quired images
H: 1 ... 50
SIMATIC MV500 U/
•
X: 1 ... 5
Edge-triggered
On
•
start/stop
Off
•
Result output
First read result
•
Best read result
•
All read results
•
Quality criterion
Overall quality
•
Symbol contrast
•
Axial non-uniformity
•
Unused error cor-
•
rection
L/F border violation
•
Minimum reflec-
•
tance
34
Default Description
400 ms Here, you enter the interval at which independent acquisi-
tion of the images is repeated.
500 ms Corresponds to the maximum time available to the reader
for a read per image acquisition.
10 Here, you enter the number of acquired images necessary
to identify the object fully.
Off If enabled, the image acquisition series is ended on a nega-
tive (falling) edge before the configured number of images
has been acquired.
First read
First read result:
•
result
The programs contained in the program sequence are
processed one after the other. Following the first suc-
cessful processing procedure, processing is stopped
and the result is output.
Best read result:
•
The programs contained in the program sequence are
processed one after the other. All successful processing
procedures are compared with each other. Once all pro-
cessing procedures are completed, the best read result
is output.
All read results:
•
The programs contained in the program sequence are
processed one after the other. The result is output for
each program.
Restriction: This setting is not supported in PROFINET
mode with Ident profile or during operation using a CM.
Overall quality When selecting result output: "Best read result", set the
comparison criterion. The "Quality" of a result is evaluated
based on the comparison criterion.
Note
Only the selection "Overall quality" is valid for all code types
and verification standards.
If you want to use a different quality criterion, make sure
that this criterion is calculated with the selected settings. If a
result is compared in processing mode that does not pro-
vide the selected quality, the setting changes to the overall
quality, which can lead to unexpected results.
Operating Manual, 05/2019, C79000-G8976-C495-02
SIMATIC MV500