Revised
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.
WITHDRAWN
IEC 62541-12:2020 ED1
99.60
Withdrawal effective
Dec 22, 2025
PUBLISHED
IEC 62541-12:2025 ED2
OPC unified architecture - Part 12: Discovery and global services
60.60 Standard published