过程控制用功能块(FB).第3部分:电子器件描述语言(EDDL)

[中文适用范围]： IEC 61804 的这一部分指定了电子设备描述语言 (EDDL) 技术，该技术可以使用工程生命周期的工具集成真实的产品细节。该标准将 EDDL 指定为描述自动化系统组件属性的通用语言。 EDDL 能够描述· 设备参数及其依赖性； · 设备功能，例如模拟模式、校准； · 图形表示，例如菜单； · 与控制设备的交互； · 图形表示： ?增强的用户界面； ？绘图系统。 · 持久数据存储。 EDDL 用于创建电子设备描述 (EDD)。该 EDD 与适当的工具一起使用来生成解释性代码，以支持自动化系统组件（例如远程 I/O、控制器、传感器和可编程控制器）的参数处理、操作和监控。工具实现超出了本标准的范围。具体语法在附件A中定义，但是也可以使用具有不同语法的语义模型。注 1：EDDL 也可用于其他领域的产品属性描述。 EDDL和设备相关的EDD适用于工业自动化。注2：工业自动化可能包括通用数字和模拟输入/输出模块、运动控制器、人机界面、传感器、闭环控制器、编码器、液压阀和可编程控制器等设备。本国际标准满足 IEC/TS 61804-1 第 9 条的要求。 [外文原描述]： IEC 61804-3:2010 specifies the Electronic Device Description Language (EDDL) technology, which enables the integration of real product details using the tools of the engineering life cycle. It specifies EDDL as a generic language for describing the properties of automation system components. It specifies the semantic and lexical structure in a syntax-independent manner. A specific syntax is defined in Annex A, but it is possible to use the semantic model also with different syntaxes. This second edition cancels and replaces the first edition published in 2006. This edition constitutes a technical revision. The main changes with respect to the previous edition are: 1.Additions: - Language elements to support modular devices, see, 7.9, 7.10, 7.36.1, 7.36.2, 7.36.3, 7.36.13, and 7.36.15; - Language elements to support offline configuration, 7.31; - Usage of UTF-8, see A.2.3.; - Various BuiltIns; - BLOCK_A referencing. Updates to support access to multiple blocks, see 7.4.1, 7.38.18 up to 7.38.26.; - Add VALIDITY attribute to various lexical structures; - Support of multi-language images, see 7.18.2.1; - In 7.23.1 deleted the restriction of the MENU item list; - Syntactical limitation on conditionals in 7.23.2.1 to restrict the MENU layout; - Add LIST and delete VARIABLE_LIST of the MENU items in 7.23.2.1; - Additional return value data types for METHOD TYPE, see 7.24.2.3; - Replace reference by a context specific specification in Table 170; - Clarification on KEY_POINTS behaviour, see 7.35.2.4; - Add TRANSPARENT to the lexical structure to make the list of attributes consistent, see 7.36.11; - Clarification on file behaviour, see 7.36.10; - Add in Table A.5 the new key-words; - Add the formal EDDL syntax in A.6; 2.Corrections: - Deleted in A.6 all non-needed constructs using the auxiliary ..._listR. These were created by a non-perfect syntax-checking tool. - Deleted in A.6 all non-needed "stmt1:" and "stmt2:". These were created by a non-perfect syntax-checking tool. - Made A.6 consistent about using a colon at the end of a term by amending colons in a consistent way. - Deleted not used references. - Deleted in several lexical structures the brackets and "". - Deleted in lexical structures the "[ ]" where the conditional expression was not possible. - Exchanged the attribute WIDTH by HEIGHT in the subclause specifying HEIGHT. - Spelling errors like GUAGE exchanged to GAUGE. - Syntactical limitation on conditionals in ACTIONS (for example see 7.14.2.3 and 7.14.2.4) to support conditionals only in the METHODs. - Clarification on file behaviour in 7.15. - Add GRID and IMAGES to the attribute list, see 7.19. - Deleted a duplication of element list in 7.23.2.1. - Defining and calling METHODs with parameter and return value, see 7.24. - Restriction on METHOD CLASS, see 7.24.2.2. - Clarification on SCALING_F ACTOR behaviour, see Table 165. - Deleted EDDL operators from EDDL keyword list, see Table A.5. - Clarification on TIME_VALUE coding prov iding the absolute basis, see Table D.16 and Table D.17. This bilingual version, published in 2011-07, corresponds to the English version.