本节介绍了封闭式串行数字通信系统（通常称为现场总线）的应用，该系统用于在机械上实现安全功能时传输安全相关数据。它为此类应用的规范、系统设计、安装、调试、修改和维护期间需要考虑的问题提供了指导。它假设SRECS安全要求规范（SRS）已经制定，SRECS（安全相关电气控制系统）的设计旨在包括安全要求- 相关通讯系统。本技术报告拟与IEC 62061结合使用。

It addresses the application of closed serial digital communications systems (often termed fieldbuses) used for transmission of safety-related data in the realisation of safety functions at machinery. It offers guidance on the issues that need to be considered during the specification, system design, installation, commissioning, modification and maintenance of such applications. It assumes that the SRECS safety requirements specification (SRS) has been developed and the design of the SRECS (Safety-Related Electrical Control Systems) is intended to include a safety-related communication system. This Technical Report is intended to be used in conjunction with IEC 62061.