本文件为仪控可编程数字系统的有效计算机安全程序的开发和管理确立了要求，并提供了指导。这些要求和指南的固有标准是，电厂仪控可编程数字系统安全计划符合适用国家的要求。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document establishes requirements and provides guidance for the development and management of effective computer security programmes for I&C programmable digital systems. Inherent to these requirements and guidance is the criterion that the power plant I&C programmable digital system security programme complies with the applicable country's requirements.All current amendments available at time of purchase are included with the purchase of this document.