Waveshare Barcode Scanner Module B, Руководство по установке

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CHAPTER V DATA EDITING
INTRODUCTION
After the device decodes successfully, a string of data is obtained, which can be numbers, English,
symbols, etc., and for 2D codes, it can also be Chinese characters. This string of data is the data
information contained in the barcode. In the actual application, you may not only need the data
information of the barcode, but also need to know which type of barcode the data information is
obtained from, or need to know on which day the barcode information was scanned, or after
scanning a barcode, the text of the recorded barcode can be automatically wrapped into a carriage
return, which may not be included in the data information of the barcode.
Adding these elements to the barcode is bound to increase the length of the barcode and is not
flexible enough. Artificially adding some contents in front of or behind the data information of the
barcode, and these added contents can be changed in real time according to the demand, and
you can choose to add or mask, which is the prefix and suffix of the barcode data information. By
adding the prefix and suffix, that is, to meet the demand and no need to modify the content of
barcode information.

Prefix or suffix characters can be added or removed for one code system or all code systems.

Add any prefix or suffix using the ASCII conversion table

Add prefix or suffix characters in the order they appear in the output.

When configuring a specific code system (or all code systems), adds a prefix or suffix character
to the code system corresponding to the serial number of a specific barcode type.

The maximum size of a prefix or suffix configuration is 200 characters.
ADD PREFIX/SUFFIX
1. Scan a barcode for adding prefix or suffix .
2. Choose the code system to add the prefix or suffix to, and determine the 2-digit hexadecimal
value from the code system chart .. For example, for Code 11, the barcode type serial number
is "h" and the Hex ID is "68".
3. Scan the 2 hex digits in the chart in the appendix of this manual, or scan 9,9 for all code
systems.
4. Determine the hexadecimal value of the prefix/suffix from the ASCII conversion table .
5. Scan the 2-digit hexadecimal value from the appendix chart in this manual.