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Scope: Core (OPC-10000-*) All specs

7 result(s) for EncodingMask

OPC-10000-4 – OPC Unified Architecture - Part 4: Services

7.40.2.1 Overview

defined or new SecurityPolicies are added. The EncryptedSecret format starts with a TypeId , EncodingMask and Length . These values allow a Server to determine how to handle the secret
OPC-10000-4 – OPC Unified Architecture - Part 4: Services

7.40.2.3 EncryptedSecret Format

fields in the EncryptedSecret are described in Table 183 . The first three fields TypeId , EncodingMask and Length belong to the ExtensionObject encoding defined in OPC 10000-6 . Table 183 - EncryptedSecret ... layout Name Type Description TypeId NodeId The NodeId of the DataType Node . EncodingMask Byte This value is always 1. Length Int32 The length of the data that follows including
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.2.7 Structures with optional fields

encoding for each field is determined by the data type for the field. The EncodingMask is a 32-bit unsigned integer. Each optional field is assigned exactly ... TypeA Binary Encoding Node Encoding 1 0x1 for ByteString Length 4 13 EncodingMask 4 0x02 for O2 X 4 The value of X Y 1 The value
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.3.6 Structures with optional fields

name="OptionalType"> <xs:sequence> <xs:element name="EncodingMask" type="xs:unsignedLong" /> <xs:element name="X" type ... sequence> </xs:complexType> In the example above, the EncodingMask has a value of 3 if both O1 and O2 are encoded. Encoders shall set unused bits
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.4.6 Structures

null value. Code generators should ensure that the special field names ( UaType, UaTypeId and EncodingMask ) are not permitted in Structures
OPC-10000-6 – OPC Unified Architecture - Part 6: Mappings

5.4.7 Structures with optional fields

DataTypeDefinition is not preserved when a Structure is serialized in JSON. The EncodingMask is not guaranteed to appear as the first field. In the VerboseEncoding the bits in the EncodingMask ... determined by the presence of a field in the JSON object. In the CompactEncoding , EncodingMask indicates which fields are specified because fields are omitted because they have a default value
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

7.2.4.5.11 RawData field encoding

DataSet field or Structure field is a Structure with optional fields, the EncodingMask is encoded followed by all fields. Any optional field that is not present is encoded as padding