What is the procedure for generating a GS1-128 barcode in ZPL that includes a check digit?

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To generate a GS1-128 barcode in ZPL that includes a check digit, follow these steps:

1. Start by setting the barcode type to GS1-128 using the ^BY command.

^BY3,3,100

1. Next, set the data to be encoded using the ^FD command.

^FD(01)04200000000888(21)ABCDEFGHIJ(10)123456^FS

In this example, the data consists of three GS1 Application Identifiers: (01) for the Global Trade Item Number (GTIN), (21) for the Serial Shipping Container Code (SSCC), and (10) for the Lot Number. The data itself is just a sample set of values.

1. To include a check digit, add the ^FH command and set the value to Y.

^FH Y

This will automatically calculate and add the check digit to the barcode when it is printed.

1. Finally, print the barcode using the ^BX command.

^BXN,10,200 ^FD(01)04200000000888(21)ABCDEFGHIJ(10)123456^FS

This will generate a GS1-128 barcode with the included check digit.