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OPC unified architecture - Part 1: Overview and concepts
40.60 Close of voting
OPC unified architecture - Part 12: Discovery and global services
40.60 Close of voting
OPC Unified Architecture - Part 15: Safety
40.20 DIS ballot initiated: 12 weeks
OPC unified architecture - Part 18: Role-based security
40.60 Close of voting
OPC unified architecture - Part 19: Dictionary reference
40.60 Close of voting
OPC unified architecture - Part 23: Common referencetypes
40.60 Close of voting
