Wasp Bar Code WLS 8400 FZ 用户手册
WLS 8400 Product Reference Guide
8-52
Set Lengths for MSI (continued)
Any Length - This option allows the scanner to decode MSI symbols containing any
number of characters within the scanner capability.
number of characters within the scanner capability.
Due to the construction of the MSI symbology, it is possible for a
scan line covering only a portion of the code to be interpreted as a
complete scan, yielding less data than is actually encoded in the bar
code. To prevent this from happening, it is recommended that specific
lengths (MSI - One Discrete Length - Two Discrete Lengths) be
selected for MSI applications.
scan line covering only a portion of the code to be interpreted as a
complete scan, yielding less data than is actually encoded in the bar
code. To prevent this from happening, it is recommended that specific
lengths (MSI - One Discrete Length - Two Discrete Lengths) be
selected for MSI applications.
MSI - Any Length
MSI Check Digits
With MSI symbols, one check digit is mandatory and always verified by the reader. The
second check digit is optional. If the MSI codes include two check digits, enable the
verification of the second check digit by scanning the bar code below.
second check digit is optional. If the MSI codes include two check digits, enable the
verification of the second check digit by scanning the bar code below.
See
for the selection of second digit algorithms.
*
One MSI Check Digit
Two MSI Check Digits