IEC 61511-2:20 16 RLV包含国际标准及其红线版本。红线版本只有英文版本。Redline版本为您提供了一种快速简单的方法来比较该标准与其前一版本之间的所有变化。红线版本不是IEC官方标准，只有标准的当前版本才被视为官方文件。 IEC 61511-2:20 16为IEC 61511-1:20 16中定义的SIF和相关SIS的规范、设计、安装、操作和维护提供了指导。这第二版取消并取代了2003年出版的第一版。本版构成技术修订版。与上一版相比，本版包括以下重大技术变化:基于IEC61511第1版的使用经验提供的基于安全生命周期所有阶段的指导示例；替换附件以解决从软件到应用程序编程的过渡问题。

IEC 61511-2:2016 RLV contains the International Standard and its Redline version. The Redline version is available in English only. The Redline version provides you with a quick and easy way to compare all the changes between this standard and its previous edition. The Redline version is not an official IEC Standard, only the current version of the standard is to be considered the official document.
IEC 61511-2:2016 provides guidance on the specification, design, installation, operation and maintenance of SIFs and related SIS as defined in IEC 61511-1:2016. This second edition cancels and replaces the first edition published in 2003. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: guidance examples based on all phases of the safety life cycle provided based on usage experience with IEC61511 1st edition; annexes replaced to address transition from software to application programming.