IEC 62443的本部分规定了以下要求: •为工业自动化和控制定义正在考虑的系统（SUC） 系统（IACS）；•将SUC划分为区域和管道评估每个区域和管道的风险为每个区域和管道建立目标安全级别（SL-T）；以及•记录安全要求。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 part of IEC 62443 establishes requirements for: • defining a system under consideration (SUC) for an industrial automation and control system (IACS);• partitioning the SUC into zones and conduits;• assessing risk for each zone and conduit;• establishing the target security level (SL-T) for each zone and conduit; and• documenting the security requirements.All current amendments available at time of purchase are included with the purchase of this document.