Search

3 result(s) for AccessLevel Attribute

• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  5.6.2 Variable NodeClass
  array transferred on the wire is 2147483647 (max Int32). AccessLevel M AccessLevelType The AccessLevel Attribute is used to indicate how the Value of a Variable can be accessed (read/write ... actively collecting data for the history of the Variable . This differs from the AccessLevel Attribute which identifies if the Variable has any historical data. A value of TRUE indicates that
• OPC-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model
  3.3.1 Usage of Other column in type definitions
  MandatoryPlaceholder ModellingRule . OptionalPlaceholder OP The Node has the OptionalPlaceholder ModellingRule . ReadOnly RO The Node AccessLevel Attribute has the CurrentRead bit set but not the CurrentWrite bit. ReadWrite RW The Node ... AccessLevel Attribute has the CurrentRead and CurrentWrite bits set. WriteOnly WO The Node AccessLevel Attribute has the CurrentWrite bit set but not the CurrentRead bit. If multiple characteristics are defined
• OPC-30000 – OPC UA for Programmable Logic Controllers based on IEC61131-3
  9.1 Common Attributes
  client. This excludes the Value Attribute where the access is described by the AccessLevel Attribute . The value of this Attribute is server specific. Servers only supporting the use cases Observation