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2. Usually Ean13 adopts 2 or 22 as its price barcode type while 7 or 77 as its weight barcode type.
3. CHECKSUM is calculated by the scale automatically and it is not necessary for user to input in PLU
manager.
4. The difference between 30-32 and 33-35 is the method to calculate checksum.
5. The difference between 40-45 and 30-35 is that the price in 30-35 is total price while in 40-45 is unit
price.
36-38 is barcode type, which can be accessed by live batch management. Commodity batch number takes up
commodity number column and commodity number takes up live code column.