因果矩阵

[中文适用范围]： 本文件规定了因果矩阵(C&E矩阵)的建立和实施，旨在为工程活动中的一致使用提供指导。它描述了一种简单格式，用于支持项目和维护活动中不同工程学科之间的一致信息交换。文件定义了C&E矩阵内容的最低要求，这些内容来源于现有设计文件（如P&ID或口头描述）。 本文件不涵盖将C&E矩阵中定义的关系转换为PLC/DCS应用程序编程的功能或源代码。此外，本文件也不涉及在专用自动化平台上实现复杂和/或顺序逻辑，这需要额外的规定。 C&E矩阵可用于记录工厂设备的故障反应，因此可作为必要安全验证的参考点。 本文件定义的C&E矩阵与鱼骨图或石川图（在文献中常被称为因果图）的范围不同。 [外文原描述]： IEC 62881:2018 addresses the setting and implementation of C&E matrices for a consistent use in engineering activities. It aims to describe a simple format used to support a consistent exchange of information between different engineering disciplines involved in project or maintenance activities. The document defines the minimum requirements of the C&E matrix content, which is derived from existing design documents, for example P&ID or verbal descriptions. The transfer of the relations defined in C&E matrices into a functional or source code for the application programming of PLC/DCS is out of the scope of this document. In addition, this document does not cover the implementation of complex and/or sequential logics at a dedicated automation platform, which will require additional stipulations to be done/ followed. It is understood, that C&E matrices in fact can be used to document the fault reactions of the plant equipment and therefore can be used as reference point for the necessary safety verifications to be applied. C&E matrices as defined in this document do not have the same scope as Fishbone or Ishikawa diagrams, which are often named in the literature as cause and effect diagrams. The contents of the interpretation sheet of April 2019 have been included in this copy.