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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 12323:1998 The Euro
2、pean Standard EN 12323:1998 has the status of a British Standard ICS 35.040 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Bar coding Symbology specifications Code 16K Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:24:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI T
3、his British Standard, having been prepared under the direction of the DISC Board, was published under the authority of the Standards Board and comes into effect on 15 June 1998 BSI 1998 ISBN 0 580 29213 4 BS EN 12323:1998 Amendments issued since publication Amd. No.DateText affected National forewor
4、d This British Standard is the English language version of EN 12323:1998. The UK participation in its preparation was entrusted to Technical Committee IST/34, Bar coding, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquirie
5、s on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Users of the standard are advised that, at the time of publication, equipment cabable of scanning and decoding the symbology sp
6、ecified in this standard is not widely available. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Stan
7、dards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for
8、their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 15 and a back cover. Licensed Copy: sheffieldun sheffieldun, na, Sat O
9、ct 28 08:24:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved
10、 worldwide for CEN national Members. Ref. No. EN 12323:1998 E EUROPEAN STANDARDEN 12323 NORME EUROPE ENNE EUROPA ISCHE NORM February 1998 ICS 35.040 Descriptors: Data processing, character recognition, optical recognition, graphic characters, alphanumeric character sets, bar codes, definitions, symb
11、ols, characteristics, dimensions, dimensional tolerances, algorithms English version Bar Coding Symbology specifications Code16K Code a barres Spe cifications des symbologies Code 16K Strichcodierung Symbologiespezifikationen Code 16K This European Standard was approved by CEN on 10 November 1997. C
12、EN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on ap
13、plication to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat ha
14、s the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy:
15、sheffieldun sheffieldun, na, Sat Oct 28 08:24:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 12323:1998 BSI 1998 Foreword This European Standard has been prepared by Technical Committee CEN/TC 225, Bar coding, the Secretariat of which is held by NNI. This document shall be given the status
16、of a national standard, either by publication of an identical text or by endorsement, at the latest by August 1998, and conflicting national standards shall be withdrawn at the latest by August 1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the follo
17、wing countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Switzerland and the United Kingdom. Organizations contributing to the development of t
18、he standard include: AIM Europe (Automatic Identification Manufacturers). Contents Page Foreword2 Introduction3 1Scope3 2Normative references3 3Definitions3 4Requirements3 4.1Symbology characteristics3 4.2Symbol structure4 4.3Character assignments5 4.4Transmitted data8 4.5Dimensions and tolerances8
19、4.6Reference decode algorithm9 4.7User-defined application parameters10 Annex A (normative) Symbol check characters11 Annex B (normative) Special considerations relating to the use of Function Code 1 (FNC1)12 Annex C (normative) Using two or more Code 16K symbols to distribute longer data messages12
20、 Annex D (normative) Transmitted data13 Annex E (normative) Symbology identifiers14 Annex F (informative) Use of mode, code and shift characters to minimize symbol size14 Annex G (informative) Relationship of symbol character value to ASCII value15 Annex H (informative) Guidelines for the use of Cod
21、e 16K15 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 08:24:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 12323:1998 BSI 1998 Introduction The technology of bar coding is based on the recognition of patterns encoded in bars and spaces of defined dimensions. There are a number of m
22、ethods of encoding information in bar code form, known as symbologies, and the rules defining the translation of characters into bar and space patterns and other essential features are known as the symbology specifications. Code 16K is one such symbology. Previously, symbology specifications have be
23、en developed and published by a number of different private organizations, resulting in certain instances in conflicting requirements for certain symbologies. Manufacturers of bar code equipment and users of bar code technology require publicly available standard symbology specifications to which th
24、ey can refer when developing equipment and application standards. 1 Scope This European Standard: specifies the requirements for the multi row bar code symbology known as Code 16K; specifies Code 16K symbology characteristics, data character encodation, dimensions, tolerances, decoding algorithms an
25、d user-defined application parameters; describes a subset of Code 16K assigned to EAN International. 2 Normative references This European Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text
26、 and the publications are listed below. For dated references, subsequent amendments to or revisions of any of the publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 7
27、96, Bar coding Symbology identifiers. EN 841, Bar coding Symbology specifications Format description. EN 1571, Bar coding Data identifiers. prEN 1556, Bar coding Terminology. EN 1635, Bar coding Test specifications for bar code symbols. ISO 646:1991, Information technology ISO 7-bit coded character
28、set for information interchange. ISO 8859-1:1987, Information processing 8-bit single byte coded graphic character sets Part 1: Latin alphabet No. 1. General EAN Specifications, Brussels: EAN International, 1994. 3 Definitions For the purposes of this standard the definitions of prEN 1556 and the fo
29、llowing apply. 3.1 guard bar additional bar used to separate the trailing space of a start character from the leading space of the first symbol character in a row NOTEThis definition is specific to Code 16K, to be consistent with previously published specifications for the symbology. 3.2 mode charac
30、ter symbol character in the first position after the start character in the first row of a symbol, used to define the initial code set and any implied special characters 3.3 separator bar horizontal bar separating two rows of a symbol or abutting the top or bottom of the first or last row respective
31、ly 4 Requirements 4.1 Symbology characteristics The characteristics of Code 16K are: a) encodable character set: 1) all 128 ASCII characters, i.e. ASCII characters 0 127 inclusive, in accordance with ISO 646; NOTE 1Code set C permits two numeric data digits to be expressed in one symbol character. S
32、ee 4.3.3.3. NOTE 2Characters with ASCII values 128 255 in accordance with ISO 8859-1 may also be encoded. See 4.3.4.3d). 2) four non data function characters; 3) three code set selection characters; 4) seven shift characters; 5) eight start characters; 6) eight stop characters; 7) one pad character;
33、 b) code type: continuous, multi row; c) elements per symbol character: six, comprising three spaces and three bars, each of one, two, three or four modules in width; d) character self-checking: yes; e) row self-checking: yes; f) symbol width: 81X inclusive of minimum quiet zones; g) symbol height:
34、variable (two to 16 rows); h) bidirectional decoding: yes; i) number of symbol check characters: two, mandatory (see annex A); j) symbol character density: 11 modules per symbol character representing data (equivalent to 5,5 modules per data character in code set C); k) representative data capacity:
35、 two row symbol: seven ASCII characters, 14 numeric characters; l) maximum data capacity 16 row symbol: 77 ASCII characters, 154 numeric characters; m) non-data overhead: per row: 15 modules; per symbol: 33 modules minimum, 81 modules maximum. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 0
36、8:24:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 12323:1998 BSI 1998 Figure 1 Code 16K row structure 4.2 Symbol structure Each Code 16K symbol consists of two to 16 rows. Each row shall comprise: a) leading quiet zone; b) start character; c) 1X guard bar (where X is the nominal width of
37、a narrow bar or space); d) five symbol characters; e) one stop character; f) trailing quiet zone. Figure 1 illustrates the row structure. Rows shall be separated from each other by a horizontal separator bar. The top and bottom of the symbol shall also have separator bars which shall extend to the e
38、nds of the quiet zones. Figure 2 shows the structure of a full 16-row symbol. The symbol characters are ordered from the leftmost character of the first (top) row, through each row left to right to the rightmost character in the last (bottom) row. The first symbol character is the mode character S.
39、The last two characters are the check characters C1 and C2. The remaining symbol characters encode the data for the symbol. Figure 3 illustrates a complete symbol encoding the data ab0123456789 in Code 16K. Figure 2 Code 16K symbol structure Figure 3 Code 16K symbol encoding ab0123456789 Licensed Co
40、py: sheffieldun sheffieldun, na, Sat Oct 28 08:24:30 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 5 EN 12323:1998 BSI 1998 Figure 4 Symbol character value 33 4.3 Character assignments 4.3.1 Symbol character encodation There are 107 Code 16K symbol characters. Each symbol character consists of 11
41、1X-wide modules. Each symbol character consists of three spaces alternating with three bars, starting with a space. Each bar or space may consist of one to four modules. Table 1 defines all the Code 16K character assignments. In the column headed Symbol character structure the numeric value represen
42、ts the widths of the elements in modules or multiples of the X dimension. Symbol character parity is defined by the sum of the bar modules in any symbol character. In Code 16K this sum shall always be odd (odd parity). This odd parity feature enables character self-checking to be carried out. Figure
43、 4 illustrates the symbol character value 33. 4.3.2 Data character encodation Code 16K has three unique data character sets, shown in Table 1 as code sets A, B and C. The symbol character bar and space patterns shown are equivalent to the data characters listed in the columns for code A, B or C. The
44、 choice of data character set depends on the mode character (starting symbol character), or the use of code set A, code set B or code set C characters or the shift characters. The code set can be redefined within the symbol by the use of code set or shift characters. The same data may be represented
45、 by different Code 16K symbols characters, through the use of different combinations of mode, code set or shift characters. Annex F contains guidelines to generate the smallest symbol for given data. An application need not specify the code set to be used. Each symbol character is assigned a numeric
46、 value listed in Table 1. This value is used in calculating the check characters C1 and C2. It may also be used to provide a conversion to and from ASCII decimal values when encoding in code sets A and B (see annex G). 4.3.3 Code sets 4.3.3.1 Code set A Code set A includes all of the standard upper
47、case alphanumeric keyboard characters together with the control characters (i.e. characters with ASCII values from 00 to 95 inclusive), and 11 special characters. 4.3.3.2 Code set B Code set B includes all of the standard upper case alphanumeric keyboard characters together with the lower case alpha
48、betic characters (i.e. characters with ASCII values from 32 to 127 inclusive), and 11 special characters. 4.3.3.3 Code set C Code set C includes the set of 100 digit pairs from 00 to 99 inclusive, as well as seven special characters. This allows numeric data to be encoded, two data digits per symbol
49、 character, at effectively twice the density of standard data. 4.3.4 Special characters Special characters defined below provide information to the reader and are not transmitted as data. 4.3.4.1 Mode character The mode character, S, defines: initial mode value: m; the number of rows: r. The initial mode specifies the initial code set and may also represent an implied leading FNC1 character or implied leading shift character as shown in Table 2. Implied ch