PSC PowerScan Manuale Utente

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PowerScan
 Scanner
Standard 2 of 5/IATA Options
The Standard 2 of 5/IATA symbologies have the following program-
mable features:
Check Digit
Label Length Format
Read Verification
Check Digit
Check Digit calculates the Check Digit to verify that the Check Digit 
contained in the bar code label is correct.  If you enable this feature, 
your bar codes must contain a Check Digit.
If the Check Digit is not calculated, the digit will be sent regardless of 
settings for transmit or don’t transmit.  For example, if you choose to 
Transmit Check Digit, but not calculate, the scanner sends the Check 
Digit encoded in the bar code without verifying its accuracy.
Label Length
Format
Label length format permits the selection between variable length or 
fixed length formats. For best performance it is recomended to use the 
Fixed Length settings when your application requires only one or two 
label lengths.
Variable Length Format
 - directs the scanner to read all labels from the 
minimum label length to 50. Set Minimum Length as high as your 
application allows.
Minimum Label Length
 - selects the minimum label length 
that the scanner will recognize. The minimum label length for 
this symbology must be between 01 and 50
1
.
Fixed length Format
 - directs the scanner to read only one or two label 
lengths.
If you select fixed length format, there are three bar code labels for pro-
gramming your scanner to read either one or two fixed lengths.  The 
labels are:
Set First Fixed Length
 - instructs the scanner that the next two 
programming labels scanned will define the first fixed label 
length. This setting must be between 01 and 50
 characters.
Set Second Fixed Length
 - instructs the scanner that the next 
two programming labels scanned will define the second fixed 
label length. This setting must be between 01 and 50
characters.
1. For this symbology, the scanner will decode up to 50 characters, but the actual length read 
will vary depending upon the interface type, and bar code physical size and quality.