OPC 10000-1, OPC Unified Architecture - Part 1: Overview and Concepts

OPC 10000-3, OPC Unified Architecture - Part 3: Address Space Model

OPC 10000-4, OPC Unified Architecture - Part 4: Services

OPC 10000-5, OPC Unified Architecture - Part 5: Information Model

OPC 10000-6, OPC Unified Architecture - Part 6: Mappings

OPC 10000-7, OPC Unified Architecture - Part 7: Profiles

OPC 10000-8, OPC Unified Architecture - Part 8: Data Access

OPC 10000-9, OPC Unified Architecture - Part 9: Alarms and Conditions

OPC 10000-11, OPC Unified Architecture - Part 11: Historical Access