Siemens SIMATIC MV500, Руководство по эксплуатации

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Application
5.1 Program
SIMATIC MV500
38
Operating Manual, 05/2019, C79000-G8976-C495-02
Table 5- 21 Verification
Parameter Possible values Default Description
Reference
• Uncalibrated
•
Created calibra-
tions
Uncalibrated When selecting a calibration, the exposure settings deter-
mined by the reader during calibration setup are used. In this
way, standard-compliant exposure is achieved. In this case,
all parameters of the "Settings" group are grayed out.
From reference
1)
• Enabled
•
Disabled
• If reference is
"Uncalibrat-
ed":
Disabled
•
If reference is
selected:
Enabled
• If the exposure settings for the reading task stored in the
calibration are not suitable, you can configure the expo-
sure manually.
•
If you clear the check box, the parameters in the "Set-
tings" group can be edited again.
Note
• If you change the exposure settings, the verification per-
formed no longer conforms to the standards.
•
For the result output, use the output of the verification
settings (%v) to document the exposure settings used.
The verification type (%Qt) is provided for lighting that
does not comply with the standard with a letter (B to G)
instead of a number (1 to 6).
Note
The verification standard ISO/IEC 29158 uses automatic
exposure control, in contrast to all other verifications. Auto-
matic exposure control is used with an algorithm optimized
for the code to be verified.
Switching the exposure control to "manual" is only possible
when you disable the "From reference" option. However, the
verification no longer conforms to the standards in this case.
Note
If you clear this check box when using a verification refer-
ence with the ISO/IEC 29158 standard, the valid range for
the average gray scale value ("Mean Light") defined in the
standard is not checked. Clearing this check box prevents
the occurrence of verification errors 4707 to 4709 "Mean light
out of range". However, the verification no longer conforms
to the standards in this case.
Time limit 100 ... 50000 ms 5000 ms Time available for the automatic exposure control according
to ISO/IEC 29158.
Note
The occurrence of verification errors 4709 and 4708 indi-
cates that the value is too low.
Only active when using an ISO/IEC 29158 verification refer-
ence.
1)
The "From reference" parameter is only visible if a verification reference has been selected.