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6.2 Options
SIMATIC MV500
128
Operating Manual, 05/2019, C79000-G8976-C495-02
Relationships and dependencies of the parameters
Table 6- 23 Relationships and dependencies of the parameters
Parameter
Dependency
Description
Program sequence
•
Image acquisition > Mode
If you enable program sequence "Use", the image ac-
quisition control in the template is set to "Individual trig-
ger". Programs that have been saved already and are
marked as "non-executable" or that do not use "Individ-
ual trigger" as the image acquisition control are deleted
following a prompt for confirmation.
Program sequence
•
Image acquisition > Image buffer
During activation of the "Use" program sequence, the
program with the lowest program number determines the
number of used image buffers. This number is distribut-
ed evenly over all programs in the sequence.
Example:
Four programs in the sequence: 12 image buffers are
specified in the 1st program. Consequently, each of the
four programs is assigned three image buffers. The
number of image buffers available for the processing can
be increased, if necessary, by reducing the buffer size of
the diagnostic image memory ("Options > Diagnostics &
monitoring > Logging > Image > Buffer size").
Program sequence with result output "First read result" or "Best read result"
To obtain reproducible results, the programs contained in the program sequence must have
the same structure. If the programs contain a different number of decoder steps or codes for
Multicode, for example, you will get different read results. You cannot assign these different
read results.
Example
●
Program 1:
One decoder step, Multicode, two codes of type DMC are to be read.
●
Program 2:
One decoder step, Multicode, four codes of type DMC.
●
Program sequence 1:
Contains program 1 and 2; "First read result" or "Best read result" is to be output.
●
In the case of result output "First read result":
Acquired image contains four codes of the type DMC. Processing begins with program 1
which has an OK result because it was possible to decode two codes. Processing is
stopped and the result output.
●
In the case of result output "Best read result":
Acquired image contains four codes of the type DMC. If program 1 delivers the higher
quality, a result with two DMCs is output, even though four DMCs were in the image and
were read.