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3 result(s) for NoSubDataTypes

• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  5.8.5.2 DataTypeRefinement Objects
  IsDisabledOptionalField and HasFieldDescriptionSetMandatory are not allowed. IsOptional and StructureWithSubtypedValues or UnionWithSubtypedValues AccessLevelEx Attribute, bit NoSubDataTypes Only allowed if IsOptional is true to set the NoSubDataTypes to true. If IsOptional ... false, NoSubDataTypes shall be set. By using the subtypes HasFieldDescriptionSetMandatory (see 7.26 ) a field becomes mandatory, and by IsDisabledOptionalField (see 7.27 ) an optional field shall not be present
• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  5.8.6.1 Overview
  Value to use a subtype of the DataType unless restricted in the NoSubDataTypes bit of the AccessLevelEx Attribute. In fields of a structure, using subtypes is allowed when IsOptional ... DataType of Z:SampleVar is Number . The DataTypes always have to match exactly. The NoSubDataTypes is set to true, which is required, since Number is abstract, but would also
• OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model
  8.58 AccessLevelExType
  used by systems, in particular hard-realtime controllers, which can not ensure atomicity. The NoSubDataTypes Field represents the ability of a Variable to accept derived DataTypes . In general Variables ... Indicates if Write of IndexRange is supported (0 means Write of IndexRange is supported). NoSubDataTypes 11 Indicates if the Variable doesn't allow its DataType to be subtyped (0 means