GS1 EPC Tag Data Standard 1.6 - Indicod-Ecr
GS1 EPC Tag Data Standard 1.6 - Indicod-Ecr
GS1 EPC Tag Data Standard 1.6 - Indicod-Ecr
- No tags were found...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
147514761477147814791480148114821483Spaces have been added to the <strong>GS1</strong> element string for clarity, but they are never encoded.7.7 Global Document Type Identifier (GDTI)The GDTI <strong>EPC</strong> (Section 6.3.7) corresponds directly to a serialized GDTI key defined inSections 2.6.13 and 3.5.9 of the <strong>GS1</strong> General Specifications [<strong>GS1</strong><strong>GS1</strong>0.0]. Because an<strong>EPC</strong> always identifies a specific physical object, only GDTI keys that include theoptional serial number have a corresponding GDTI <strong>EPC</strong>. GDTI keys that lack a serialnumber refer to document classes rather than specific documents, and therefore do nothave a corresponding <strong>EPC</strong> (just as a GTIN key without a serial number does not have acorresponding <strong>EPC</strong>).<strong>EPC</strong>URIurn:epc:id:gdti:CompanyPrefixDocTypeSerial1484148514861487148814891490149114921493149414951496149714981499150015011502<strong>GS1</strong>ElementString(253)CompanyPrefixFigure 14.Correspondence between GDTI <strong>EPC</strong> URI and <strong>GS1</strong> Element StringFormally, the correspondence is defined as follows. Let the <strong>EPC</strong> URI and the <strong>GS1</strong>element string be written as follows:<strong>EPC</strong> URI: urn:epc:id:gdti:d 1 d 2 …d L .d (L+1) d (L+2) …d 12 .s 1 s 2 …s K<strong>GS1</strong> Element String: (253)d 1 d 2 …d 13 s 1 s 2 …s KDocTypeCheckDigitTo find the <strong>GS1</strong> element string corresponding to a GRAI <strong>EPC</strong> URI:1. Number the digits of the first two components of the <strong>EPC</strong> as shown above. Note thatthere will always be a total of 12 digits.2. Number the characters of the serial number (third) component of the <strong>EPC</strong> as shownabove. Each s i is a digit character.3. Calculate the check digit d 13 = (10 – ((3(d 2 + d 4 + d 6 + d 8 + d 10 + d 12 ) + (d 1 + d 3 + d 5 +d 7 + d 9 + d 11 )) mod 10)) mod 10.4. Arrange the resulting digits as shown for the <strong>GS1</strong> Element String.SerialTo find the <strong>EPC</strong> URI corresponding to a <strong>GS1</strong> element string that includes a GDTI(AI 253):1. If the number of characters following the (253) application identifier is less than orequal to 13, stop: this element string does not have a corresponding <strong>EPC</strong> because itdoes not include the optional serial number.Copyright ©2005- 2011 <strong>GS1</strong> AISBL, All Rights Reserved. Page 50 of 218
Change language