IEC 61499-1:2012定义了通用体系结构，并给出了分布式工业过程测量和控制系统（IPMCSs）中功能块的使用指南。该体系结构以可实现的参考模型、文本语法和图形表示形式呈现。本标准中给出的模型是通用的、独立于领域的，可扩展到其他标准或特定应用或应用领域中功能块的定义和使用。根据本标准给出的规则编写的规范应简洁、可实施、完整、明确且一致。第二版取消并取代2005年出版的第一版，构成技术修订版。它包括与前一版本相关的重大技术更改:执行控制、临时变量、服务序列、FB实例映射语法、段类型定义语法、与可编程控制器互操作的功能块类型以及读/写管理命令。

IEC 61499-1:2012 defines a generic architecture and presents guidelines for the use of function blocks in distributed industrial-process measurement and control systems (IPMCSs). This architecture is presented in terms of implementable reference models, textual syntax and graphical representations. The models given in this standard are intended to be generic, domain independent and extensible to the definition and use of function blocks in other standards or for particular applications or application domains. It is intended that specifications written according to the rules given in this standard be concise, implementable, complete, unambiguous, and consistent. This second edition cancels and replaces the first edition published in 2005 an constitutes a technical revision. It includes the significant technical changes with respect to the previous edition related to: Execution control, Temporary variables, Service sequences, the syntax for mapping of FB instances, the Syntax for definition of segment types, the Function block types for interoperation with programmable controllers and the READ/WRITE management commands.