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• OPC-10000-2 – OPC Unified Architecture - Part 2: Security Model
  5.1.11 Rogue Local Discover Server
  compromised Local Discovery Server . A GDS, that aggregates information from Local Discovery Server s does not trust the input from the Local Discovery Servers , until it is confirmed. Confirmation
• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  8.44 DurationString
  format P[n]Y[n]M[n]DT[n]H[n]M[n]S or P[n]W as shown to the right. In these representations, the [n] is replaced ... communicating parties. The capital letters P , Y , M , W , D , T , H , M , and S are designators for each of the date and time elements and are not replaced
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  3.1.7 ModifiedValues
  ModifiedValues HistoricalDataNode ' s value that has been changed (or manually inserted or deleted) after it was stored in the historian Note 1 to entry: For some Servers , a lab data