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

23 result(s) for AccessLevel

OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

5.6.2 Variable NodeClass

number of elements of an 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 ... accessed (read/write) and if it contains current and/or historic data. The AccessLevel does not take any user access rights into account, i.e. although the Variable is writeable this
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

8.60 AttributeWriteMask

Table 44 - Bit mask for WriteMask and UserWriteMask Field Bit Description AccessLevel 0 Indicates if the AccessLevel Attribute is writeable. ArrayDimensions 1 Indicates if the ArrayDimensions Attribute is writeable. BrowseName ... VariableType . It does not apply for Variables since this is handled by the AccessLevel and UserAccessLevel Attributes for the Variable . For Variables this bit shall be set to 0. DataTypeDefinition
OPC-10000-3 – OPC Unified Architecture - Part 3: Address Space Model

9.33.1 General

Variable or Object , the TypeDefinitionNode is also present. The SemanticChange bit of the AccessLevel Attribute of a Property indicates whether changes of the Property value are considered for SemanticChangeEvents
OPC-10000-4 – OPC Unified Architecture - Part 4: Services

5.11.3.1 Description

this Service , although the historical values themselves are not visible in the AddressSpace . The AccessLevel Attribute defined in OPC 10000-3 indicates a Node 's support for historical values. Several
OPC-10000-8 – OPC Unified Architecture - Part 8: Data Access

5.5 Attributes of DataItems

specified in detail in OPC 10000-3 ) are particularly important for DataItems : Value DataType AccessLevel MinimumSamplingInterval Value is the most recent value of the Variable that the Server ... data type is defined by the DataType Attribute . The AccessLevel Attribute defines the Server's basic ability to access current data and MinimumSamplingInterval defines how current the data is. When
OPC-10000-8 – OPC Unified Architecture - Part 8: Data Access

A.3.1.3 Item

ValueRank Attribute is set as OneOrMoreDimensions. If not, it is set to Scalar. The AccessLevel Attribute is set with the AccessRights value in the DA server: OPC_READABLE -> Readable
OPC-10000-8 – OPC Unified Architecture - Part 8: Data Access

A.3.1.4 Property

Scalar. If the property has an ItemID in the DA server , then the AccessLevel attribute for the Node is set to ReadableOrWriteable . If not, it is set to Readable . Table ... Information Model OPC UA DataType Access Rights (5) AccessLevel Attribute Int32 EU Units (100) EngineeringUnits Property String Item Description (101) Description Attribute String High EU (102) EURange Property Double
OPC-10000-8 – OPC Unified Architecture - Part 8: Data Access

A.4.2.3 Variable Nodes

mapping are in A.4.3.4 Item Access Rights (Property ID: 5): The value of the AccessLevel attribute of the node in the OPC UA Server is assigned to this property based ... following mapping: CurrentRead -> OPC_READABLE CurrentWrite -> OPC_WRITABLE The other AccessLevel provided by OPC are ignored Server Scan Rate (Property ID: 6): The value of the MinimumSamplingInterval attribute
OPC-10000-9 – OPC Unified Architecture - Part 9: Alarms & Conditions

5.8.18 LimitAlarmType

limit, the limit Property shall still be provided, but will have its AccessLevel set to not readable. It is assumed that the limits are described using the same Engineering Unit
OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access

4.7 Changes in AddressSpace over time

longer historized, then the Object should be maintained in the AddressSpace , with the appropriate AccessLevel Attribute and Historizing Attribute settings (see OPC 10000-3 for details on access levels ... nodes that are 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
OPC-10000-11 – OPC Unified Architecture - Part 11: Historical Access

5.6.2 HistoricalDataNodes Address Space Model

history data is available, a Client will look for the HistoryRead/Write states in the AccessLevel Attribute (see OPC 10000-3 for details on use of this Attribute ). Figure 3 only
OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub

9.1.9.3 SubscribedDataSetMirrorType

Reference from the parent Node to the Variable is of type HasComponent . The initial AccessLevel of the Variables is CurrentRead . The RolePermissions is derived from the parent Node . The other
OPC-10000-18 – OPC Unified Architecture - Part 18: Role-Based Security

4.4.1 RoleType definition

other Properties are configured with the corresponding Method calls. The CurrentWrite bit of the AccessLevel Attribute for the Properties Identities , Applications and Endpoints shall be FALSE. If the configuration
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-10000-81 – OPC Unified Architecture - Part 81: UAFX Connecting Devices and Information Model

6.8.1 Overview

ReadWrite for specific users or in general. This can be determined by examining the AccessLevel and UserAccessLevel Attributes of the data. With these mechanisms, the generator of the ConnectionConfigurationSet
OPC-10000-100 – OPC Unified Architecture - Part 100: Devices

3.3.1.1 Node definitions

Variables and Objects . Additional characteristics of the TargetNode such as the ModellingRule or AccessLevel . NOTE Notes referencing footnotes of the table content. Components of Nodes can be complex that ... MandatoryPlaceholder ModellingRule. 0:OptionalPlaceholder OP The Node has the OptionalPlaceholder ModellingRule. ReadOnly RO The AccessLevel has the CurrentRead bit set but not the CurrentWrite bit. ReadWrite RW The AccessLevel
OPC-10000-100 – OPC Unified Architecture - Part 100: Devices

4.4.2 Well-Known FunctionalGroup BrowseNames

configuration items of the TopologyElement . If the CurrentWrite bit is set in the AccessLevel Attribute they can be modified by Clients . Tuning Parameters and Methods to optimize the behavior
OPC-10000-110 – OPC Unified Architecture - Part 110: Asset Management Basics

3.3.1.1 Node definitions

Variables and Objects . Additional characteristics of the TargetNode such as the ModellingRule or AccessLevel . NOTE Notes referencing footnotes of the table content. Components of Nodes can be complex that ... ModellingRule. 0:OptionalPlaceholder OP The Node has the OptionalPlaceholder ModellingRule. ReadOnly RO The Node AccessLevel has the CurrentRead bit set but not the CurrentWrite bit. ReadWrite RW The Node AccessLevel
OPC-10000-110 – OPC Unified Architecture - Part 110: Asset Management Basics

9.6 Tracking of health information

history is currently tracked, the Historizing Attribute is set to True and the AccessLevel is set to HistoryRead . In order to provide the information, when history tracking started, a HistoryDataConfiguration
OPC-10000-120 – OPC Unified Architecture - Part 120: OPC UA and XML Data Type Mapping

3.3.1.1 Node definitions

Variables and Objects . Additional characteristics of the TargetNode such as the ModellingRule or AccessLevel . NOTE Notes referencing footnotes of the table content. Conformance Units Name of ConformanceUnit ... ModellingRule. 0:OptionalPlaceholder OP The Node has the OptionalPlaceholder ModellingRule. ReadOnly RO The Node AccessLevel has the CurrentRead bit set but not the CurrentWrite bit. ReadWrite RW The Node AccessLevel
OPC-10000-200 – OPC Unified Architecture - Part 200: Industrial Automation

3.3.1 Conventions for Node descriptions

Variables and Objects . Additional characteristics of the TargetNode such as the ModellingRule or AccessLevel . NOTE Notes referencing footnotes of the table content. Components of Nodes can be complex that ... ModellingRule. 0:OptionalPlaceholder OP The Node has the OptionalPlaceholder ModellingRule. ReadOnly RO The Node AccessLevel has the CurrentRead bit set but not the CurrentWrite bit. ReadWrite RW The Node AccessLevel
OPC-10000-210 – OPC Unified Architecture - Part 210: Relative Spatial Location

3.4.1.1 Node definitions

Variables and Objects . Additional characteristics of the TargetNode such as the ModellingRule or AccessLevel . NOTE Notes referencing footnotes of the table content. Components of Nodes can be complex that ... MandatoryPlaceholder ModellingRule. OPlaceholder OP The Node has the OptionalPlaceholder ModellingRule. ReadOnly RO The Node AccessLevel has the CurrentRead bit set but not the CurrentWrite bit. ReadWrite RW The Node AccessLevel
OPC-10000-211 – OPC Unified Architecture - Part 211: Global Positioning

3.4.1.1 Node definitions

Variables and Objects . Additional characteristics of the TargetNode such as the ModellingRule or AccessLevel . NOTE Notes referencing footnotes of the table content. Conformance Units Name of ConformanceUnit ... ModellingRule. 0:OptionalPlaceholder OP The Node has the OptionalPlaceholder ModellingRule. ReadOnly RO The Node AccessLevel has the CurrentRead bit set but not the CurrentWrite bit. ReadWrite RW The Node AccessLevel