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3 result(s) for HistoryWrite

• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  8.55 PermissionType
  insert the history associated with a Node . For Variables , this bit affects the HistoryWrite bit of the UserAccessLevel Attribute . This Permission is only valid for Variables (for inserting historical values ... modify the history associated with a Node . For Variables , this bit affects the HistoryWrite bit of the UserAccessLevel Attribute . This Permission is only valid for Variables (for modifying historical values
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  4.7 Changes in AddressSpace over time
  currently collecting historical data. They shall also set the AccessLevel HistoryRead and optionally the HistoryWrite bits for HistoricalNodes (those with Historical data). If a HistoricalConfiguration Object is added
• OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access
  5.4.4 HistoricalEventNode Attributes
  history of the Events is readable. (0 means not readable, 1 means readable). HistoryWrite 3 Indicates if the history of the Events is writable. (0 means not writable, 1 means