标准摘要
[中文适用范围]： 本部分IEC 62541规定了OPC统一架构（OPC UA）客户端和服务器在不同场景下与发现服务器的交互方式。它规定了LocalDiscoveryServer、LocalDiscoveryServer-ME和GlobalDiscoveryServer的要求。还定义了证书管理、密钥凭证管理和授权服务的信息模型。 [外文原描述]： IEC 62541-12:2020 specifies how OPC Unified Architecture (OPC UA) Clients and Servers interact with DiscoveryServers when used in different scenarios. It specifies the requirements for the LocalDiscoveryServer, LocalDiscoveryServer-ME and GlobalDiscoveryServer. It also defines information models for Certificate management, KeyCredential management and Authorization Services.
英文名称OPC Unified Architecture - Part 12: Discovery and global services