OPC UA Interoperability Testing with OpcCmd

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This article is mainly for internal usage.

Session

CreateSession() over an insecure channel with UA TCP and SecurityPolicy =None
Example: uaClient read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer i=2255 --EndpointAllowedMessagedSecurity SecurityNone
CreateSession() over a secure channel with UA TCP and SecurityPolicy=Basic128Rsa15 where the key length is minimum 2048.
Example: uaClient read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer i=2255 --EndpointSecurityPolicyDisplayName Basic128Rsa15
ActivateSession() with user identity = username/password
Example: uaClient read opc.tcp://opcua.demo-this.com:58810/GlobalDiscoveryServer i=2255 --EndpointUser appadmin:demo
ActivateSession() with user identity = anonymous
Example: uaClient read //opcua.demo-this.com:51210/UA/SampleServer i=2255 --EndpointAnonymous True
However, the anonymous identity is the default, and as such is used in other tests unless other identity is explicitly specified.
ActivateSession - change user in an existing session.
Not supported (by API).
Use CloseSession() to end session. If possible, verify that the following service calls to the session are rejected.
Example:
uaClient --!option AmbientOutput=[Boolean]True --ConnectionMonitoring
read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer i=2255
Then, keep pressing Enter until the ambient disconnection events are displayed.
Create and use multiple sessions.
Example:
!option AmbientOutput [Boolean]True
uaClient --ConnectionMonitoring
getService uaClientConnectionControl lockConnection //opcua.demo-this.com:51210/UA/SampleServer
\uaClient --ConnectionMonitoring read //opcua.demo-this.com:51210/UA/SampleServer i=2255
CreateSession() with an application instance certificate
Example: uaClient read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer i=2255 --EndpointAllowedMessagedSecurity Secure
CreateSession() over a secure channel with HTTPS and SecurityPolicy =None.
Example: uaClient read https://opcua.demo-this.com:51212/UA/SampleServer i=2255 --EndpointAllowedMessagedSecurity SecurityNone
ActivateSession() with user identity = X509 certificate
Example: uaClient read //opcua.demo-this.com:51210/UA/SampleServer i=2255 --EndpointCertificateFileName MyCertificate.pfx
CreateSession() over a secure channel with UA TCP and SecurityPolicy=Basic256Sha256
Example: uaClient read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer i=2255 --EndpointSecurityPolicyDisplayName Basic256Sha256
CreateSession() over a secure channel with UA TCP and SecurityPolicy=Aes128-Sha256-RsaOaep
Example: uaClient read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer i=2255 --EndpointSecurityPolicyDisplayName Aes128-Sha256-RsaOaep
CreateSession() over a secure channel with UA TCP and SecurityPolicy=Aes256-Sha256-RsaPss
Example: uaClient read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer i=2255 --EndpointSecurityPolicyDisplayName Aes256-Sha256-RsaPss

View Services

Call Browse() on a single node in the address space. Repeat with other nodes.
Example: uaClient browse //opcua.demo-this.com:51210/UA/SampleServer
Example: uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Objects
Call Browse() by specifying more than one node in a single call. Walk through the address space.
Specifying more than one node in a single call: Not supported (by OpcCmd).
Example - Walk through the address space:
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --BrowseParametersStandardName AllHierarchicalReferences --tree
Call Browse() using various Reference filters; e.g. only hierarchical references.
Example: uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --BrowseParametersStandardName AllHierarchicalReferences
Example: uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Objects --BrowseParametersStandardName AllHierarchicalReferences
Call Browse() using various NodeClass filters (e.g. to return Variable nodes only).
Example: uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Server --NodeClasses Variable
Example: uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Server --BrowseParametersStandardName DataNodes
Call Browse() with a filter to reduce the result information (e.g. omit BrowseName and ReferenceType).
Not supported (by API).
[obsolete] BrowseNext (Continuation Point)
Example:
uaClient
set IsolatedParameters.SessionParameters.MaximumReferencesPerBrowseNode [Int32]1
browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Server
exit
TranslateBrowsePathToNodeId to determine the NodeID of components (e.g. properties)
Example: uaClient read //opcua.demo-this.com:51210/UA/SampleServer --NodeBrowsePath [Server]/0:NamespaceArray
[obsolete] TranslateBrowsePathToNodeId for non-hierarchical References
Not supported (no test due to obsolescence).
Register()/UnregisterNodes() for one or more standard UA-defined Nodes (e.g. "Server") in a single call.
Example:
!diagnostics sources setSwitchValue Verbose OpcLabs.EasyOpc.UA.UAClientSession
uaClient
getService uaClientConnectionControl lockConnection //opcua.demo-this.com:51210/UA/SampleServer
getService uaClientNodeRegistration registerNode //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardNameServer_ServerDiagnostics_ServerDiagnosticsSummary_CumulatedSessionCount
observe the registration handle
read //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Server_ServerDiagnostics_ServerDiagnosticsSummary_CumulatedSessionCount
getService uaClientNodeRegistration unregisterNode registrationHandle
exit
!diagnostics trace entries? --source OpcLabs.EasyOpc.UA.UAClientSession
Register()/UnregisterNodes() for one or more vendor-defined Nodes in a single call.
Example:
!diagnostics sources setSwitchValue Verbose OpcLabs.EasyOpc.UA.UAClientSession
uaClient
getService uaClientConnectionControl lockConnection //opcua.demo-this.com:51210/UA/SampleServer
getService uaClientNodeRegistration registerNode //opcua.demo-this.com:51210/UA/SampleServer nsu=http://samples.org/UA/memorybuffer/Instance;s=UInt32[0]
observe the registration handle
read //opcua.demo-this.com:51210/UA/SampleServer nsu=http://samples.org/UA/memorybuffer/Instance;s=UInt32[0]
getService uaClientNodeRegistration unregisterNode registrationHandle
exit
!diagnostics trace entries? --source OpcLabs.EasyOpc.UA.UAClientSession
Browse with Views.
Not supported (by API).

Attribute Services

Read() attributes - as supported by the Client - for a standard UA-defined node (e.g. "Server"). Repeat with other nodes.
Example:
uaClient read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Server_ServerStatus_State
uaClient read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Server_ServerDiagnostics_EnabledFlag
uaClient read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Server_ServerStatus
Read() all supported attributes for a given vendor node in a single call. Vary the vendor nodes.
Example:
uaClient read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer ns=2;i=10219 multiple --attributeId *
uaClient read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer ns=2;i=10854 multiple --attributeId *
Read() all supported attributes on a given node while specifying a MaxAge value.
Example:
uaClient read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer ns=2;i=10219 --MaximumAge 1000 multiple --attributeId *
uaClient read opc.tcp://opcua.demo-this.com:51210/UA/SampleServer ns=2;i=10854 --MaximumAge 1000 multiple --attributeId *
Read() the value attribute while specifying an encoding (not "default"). Vary the encoding.
Not supported (by API).
Read() a value that is an array while varying the IndexRange to include specific indexes, the first X, the last X, the middle X. Vary the number of dimensions (e.g. "1:2,1:2" or "1:2,1:2,1:2" etc.) - if available.
Example:
uaClient read //opcua.demo-this.com:51210/UA/SampleServer i=2255 Value 0:1
uaClient read //opcua.demo-this.com:51210/UA/SampleServer "nsu=http://test.org/UA/Data/ ;ns=2;i=10303" Value 2
uaClient read //opcua.demo-this.com:51210/UA/SampleServer "nsu=http://test.org/UA/Data/ ;ns=2;i=10303" Value 1:2,1:2
uaClient read //opcua.demo-this.com:51210/UA/SampleServer "nsu=http://test.org/UA/Data/ ;ns=2;i=10939" Value 1:2
uaClient read //opcua.demo-this.com:51210/UA/SampleServer "nsu=http://test.org/UA/Data/ ;ns=2;i=10939" Value 1:2,1:2
Write() one or more Value attributes (WriteAccess permitted) for one or more nodes in a single call. Vary nodes.
Example:
uaClient write //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10221 [Int32]3141
uaClient read //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10221
uaClient write //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10474 [String[]]{first,second,third}
uaClient read //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10474
Write() a value that is an array using the IndexRange to vary the number of elements, e.g. all, first X, last X, middle X. Repeat for multi-dimension arrays, if available.
Example:
uaClient write //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10302 [Byte[]]{42,43,44} Value 2:4
uaClient read //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10302
uaClient write //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10474 [String[]]{first,second,third}
uaClient write //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10474 [String[]]{new2} Value 1
uaClient read //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10474

Method Services

Call() a method defined by the vendor (not any of the OPC UA defined methods). Vary the methods to ensure different method signatures are covered, e.g. no parameters, in-parameters only, out-parameters only, in and out parameters etc.
Example: uaClient call //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10755 nsu=http://test.org/UA/Data/;i=10756 [Boolean]False [SByte]1 [Byte]2 [Int16]3 [UInt16]4 [Int32]5 [UInt32]6 [Int64]7 [UInt64]8 [Float]9 [Double]10

Information Model

Browse() for standard folders: Objects, Types, ReferenceTypes, ObjectTypes, VariableTypes, DataTypes, and Views.
Example:
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName ObjectsFolder
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName TypesFolder
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName ReferenceTypesFolder
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName ObjectTypesFolder
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName VariableTypesFolder
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName DataTypesFolder
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName ViewsFolder
Browse() the Types folder and verify standard types are exposed, e.g. BaseObjectType, FolderType, Reference Types, Data Types (scalar types and standard structures).
Example:
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName TypesFolder --BrowseDirections Forward --ReferenceTypeId i=35 --ReferenceTypeId i=45 --tree
Browse() the Server Object for ServerCapabilities, ServerDiagnostics, ServerStatus, VendorServerInfo, and any other standardized components.
Example:
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Server
Browse() the ServerDiagnostics.SessionDiagnosticsArray and verify the Client connection and its details can be read
Example:
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Server_ServerDiagnostics
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Server_ServerDiagnostics_SessionsDiagnosticsSummary
uaClient read //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Server_ServerDiagnostics_SessionsDiagnosticsSummary_SessionDiagnosticsArray

Subscription Services

[obsolete] Create empty Subscription
Not supported (by API).
Modify an existing subscription by varying subscription properties (e.g. publishingInterval and keepAlive etc.) and verify subscription behavior.
Not supported (by OpcCmd).
Delete an existing Subscription
Example:
!diagnostics sources setSwitchValue Verbose OpcLabs.EasyOpc.UA.UAClientSession
uaClient subscribe //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10849 !wait 5000
traceEntries?
In the trace entries, look for an entry from "UAClientSession" indicating SDK subscription remove success or failure.
SetPublishingMode() to enable/disable publishing. Test with multiple subscriptions if available.
Not supported (by API).
[obsolete] Publish Service to request attribute value changes
Not supported (not clear).
Publish() returns after keep-alive interval (no data-changes; hint: subscribe to static items).
Example:
uaClient
set IsolatedParameters.SubscriptionParameters.KeepAliveCount [Int32]1
subscribe //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10393
If the keep-alive fails, there would be an additional event with the error
Issue multiple Publish() requests that are to be queued by the Server.
Not supported (by API).
[obsolete] Republish Service
Not supported (by API).
Create subscriptions with varying number of monitored items and different rate settings as supported by the client. Verify that the server provides updates according to the specified publishing rate. Optionally use Write() service to trigger data changes.
Example:
uaClient subscribe //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10849 --Aggregates StateStatistics multiple
uaClient subscribe //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10849 200 --Aggregates StateStatistics multiple

Redundancy

TransferSubscription() to change ownership of a subscription to another Client.
Not supported (by API).

Eventing

Subscribe to the Server Object's EventNotifier attribute. Specify some basic event fields in the select clause. Verify that events are notified.
Not supported (by OpcCmd).
Subscribe with a filter for EventType, Priority etc. Verify that events match the filter criteria.
Not supported (by OpcCmd).
[obsolete] Publish Service delivers event notifications matching the filter.
Not supported (by OpcCmd).
 ? (EventNodes_Browse)
Example:
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Server --BrowseDirections Forward --ReferenceTypeId i=36 --tree

Data Change

Add Monitored Items (value attribute of variables)
Example:
uaClient subscribe //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10849 multiple --repeat 2
Modify the state of One or more monitored items in a single SetMonitoringMode() call, e.g. disabled, reporting, or sampling.
Not supported (by API).
[obsolete] Enable / disable publishing
Not supported (by API).
Create a trigger (SetTriggering()) to configure linked items. Verify that linked items are reported when the triggering item changes.
Not supported (by API).
Absolute Deadband filter.
Example:
uaClient subscribe //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10853 200 --DeadbandType Absolute --DeadbandValue 1E10
Modify an existing trigger (SetTriggering()) by adding/removing items to/from the trigger. Verify behavior.
Not supported (by API).

Node Management

Add one or more nodes in a single AddNodes() call. Verify address-space for changes.
Not supported (by API).
Delete one or more nodes in a single DeleteNodes() call. Verify address-space for changes.
Not supported (by API).
Add one or more references in a single AddReferences() call. Verify address-space for changes.
Not supported (by API).
Delete one or more references in a single DeleteReferences() call. Verify address-space for changes.
Not supported (by API).

Alarm and Condition

Browse() the Types folder for supported Alarm types and Condition types.
Example:
uaClient browse //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName BaseEventType --BrowseDirections Forward --ReferenceTypeId i=45 --tree
Call CreateMonitoredItems() for an Event Notifier. Specify event fields to be returned. Specify a simple filter (e.g. if (Severity > 400)). Vary the selection and the filter.
Not supported (by OpcCmd).
[obsolete] Publish service delivers Alarm and Condition events
Not supported (by OpcCmd).
Call ConditionRefresh for a subscription while at least one Condition is in an interesting state (e.g. an Alarm is active). Verify that this Condition state is reported.
Not supported (by OpcCmd).
Modify the state of a Condition by calling the Enable/Disable methods. Verify the reporting behaviour.
Not supported (by OpcCmd).
Call the Acknowledge Method for an Alarm that requires acknowledgement.
Not supported (by OpcCmd).
Call the Confirm Method for an Alarm that requires confirmation.
Not supported (by OpcCmd).
[obsolete] Dialog Condition including Respond Method
Not supported (by OpcCmd).

Historical Access

Historical Raw Data Facet -- basic historical access, ReadRaw. Where the time range is specified using a start time, stop time and number of values (a minimum of two of the three).
Not supported (by API).
Historical Raw Data Facet -- support minimum 2 continuation points
Not supported (by API).
HistoricalDataAtTime Server Facet -- Support reading historical data at a specified instance in time.
Not supported (by API).
HistoricalModifiedData Server Facet -- Supports maintaining old values for historical data that have been updated and the retrieval of these values.
Not supported (by API).
HistoricalAnnotation Server Facet -- Supports the entry and retrieval of annotations for historical data using the standard historical read raw functionality.
Not supported (by API).
HistoricalDataUpdate Server Facet -- Support Insert, Delete and Replace.
Not supported (by API).
HistoricalStructuredData Server Facet -- Support historical access for structured data. IF this is support structured data must be supported for all other historical conformance units (i.e. read raw, read at time etc).
Not supported (by API).
AggregateHistorical Server Facet -- Support historical read with aggregates
Not supported (by API).
EnhancedHistoricalData Server Facet -- Support at least 5 Continuation Points; support providing a ServerTimestamp in addition to the SourceTimestamp.
Not supported (by API).
BaseHistoricalEvent Server Facet -- Support retrieval of historical Events. This includes support for simple filtering of events.
Not supported (by API).
EnhancedHistoricalEvent Server Facet -- Support Insert, Replace, Update; support at least 5 continuation points.
Not supported (by API).

Discovery

Call FindServers() on a remote LDS and specify a ServerURI to get a specific Server application.
Not supported (by API).
Call GetEndpoints() on the Server application that is the testee. Specify the desired transport profile in the request. Verify that only endpoints are returned that include this profile.
Not supported (by API).
Call FindServers() on a remote LDS to get the list of available Server applications. Verify that the Server application that is the testee is in this list.
Example:
uaClient discover localApplications opcua.demo-this.com
Call GetEndpoints() on the Server application that is the testee.
Example:
uaClient read //opcua.demo-this.com:51210/UA/SampleServer --NodeStandardName Server_ServerCapabilities_MaxArrayLength
The ability to create a session in this way is a proof of test success here

Challenge

Connect to multiple products in parallel, each with 10 or more items (more is better).
Not supported (by OpcCmd).
Client and Servers recover from short network-interruption, i.e. 10-seconds. Session is not closed, Subscriptions continue to send notifications.
Example:
!diagnostics sources setSwitchValue Verbose OpcLabs.EasyOpc.UA.UAClientSession
uaClient subscribe //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10849 !wait 01:00:00
traceEntries?
Client and Servers recover from long network-interruption, i.e. 1-minute.
Example:
uaClient subscribe //opcua.demo-this.com:51210/UA/SampleServer nsu=http://test.org/UA/Data/;i=10849 !wait 01:00:00
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