IEC 62541的这一部分定义了OPC统一体系结构的信息模型。这个 信息模型描述服务器存储空间的标准化节点。这些节点是用于诊断或输入的标准化类型和标准化实例 指向特定于服务器的节点。因此，信息模型定义了 清空服务器。然而，并非所有服务器都能提供所有这些节点。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 62541 defines the Information Model of the OPC Unified Architecture. The Information Model describes standardizedNodesof a Server'sAddressSpace. TheseNodesare standardized types as well as standardized instances used for diagnostics or as entry points to server-specificNodes. Thus, the Information Model defines theAddressSpaceof an empty OPC UAServer. However, it is not expected that allServerswill provide all of theseNodes.All current amendments available at time of purchase are included with the purchase of this document.