Penultimate-finally, you convert that value (76), considering it to be an ASCII code, back the other direction to its 'presentation' value, namely 'L'.įinally, you append that calculated character to the original barcode. The next step is to divide that number by the Code128 'magic number' of 103 the value you're interested in is the modulus. 9*57513.You then sum all these up, to arrive at (in this case) 2,445. Then, the ordinal position of each character is multiplied by its ASCII value. for the fabricated barcode number '123456789' the '1' equates to 49, the '2' to 50. Check Digit Calculator The following check digit calculator is provided by Bar Code Graphics, Inc., the leading provider of GS1 support services in the US and specialize in barcode creation and identification implementation.Our services are utilized by the major retailers, manufacturers, ad agencies and coupon processors.Įach character in the barcode, from the left, is first converted into its ASCII code (IOW, a barcode character of '1' is to be viewed as its ASCII Code of 49, etc.) and then that value is multiplied by its ordinal position in the array of chars.Į.g.
0 kommentar(er)
