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IDProjectCategoryView StatusDate SubmittedLast Update
0007118CTT UA Test Case4 - Test Case Definitionpublic2021-07-19 06:252022-08-02 20:06
ReporterGanesh Rao Assigned ToPaul Hunkar  
PrioritynormalSeverityminorReproducibilityN/A
Status assignedResolutionopen 
Summary0007118: Validity of Subscription Client Basic->Test cases-> 033.js for the clients which does not support Timestamp
Description

When OPC UA client does not support Timestamp i.e. by default OpcUa_TimestampsToReturn_Neither is configured for the monitored items, how the client supposed to handle the below CTT test case which is part of the mandatory facet for the UA minimum client profile ?

Subscription Client Basic->Test cases-> 033.js

Test Case:
The MonitoredItems parameter contains multiple data-changes for a single MonitoredItem, i.e. one MonitoredItem changed 10 times and consequently receives 10 changes within the one event.
Note: CTT could inject values into the message stream, and with the values/timestamps being out of order.

Expected Result:
Client processes the data accordingly, with the Client showing the current value correctly, determined by the Timestamp.

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Paul Hunkar

2021-09-03 15:53

administrator   ~0014809

Last edited: 2021-09-04 05:16

A minimum UA subscription Client is expected to support timestamps.

Paul Hunkar

2021-09-03 15:53

administrator   ~0014810

Last edited: 2021-09-04 05:19

do you have a client requirement that requires a subscription with no timestamps? This type of subscription client would have to have a queue size of 1,

Ganesh Rao

2021-09-06 06:34

reporter   ~0014812

Yes we do have a client requirement of creating subscription of queue size 1 with no support for timestamps. Why the timestamp should be mandatory for minimum UA client profile ? I checked with Alexander on this via mail and he said it is not a mandatory requirement. Please confirm.

Issue History

Date Modified Username Field Change
2021-07-19 06:25 Ganesh Rao New Issue
2021-09-03 15:53 Paul Hunkar Note Added: 0014809
2021-09-03 15:53 Paul Hunkar Assigned To => Paul Hunkar
2021-09-03 15:53 Paul Hunkar Status new => feedback
2021-09-03 15:53 Paul Hunkar Note Added: 0014810
2021-09-04 05:16 Paul Hunkar Note Edited: 0014809
2021-09-04 05:19 Paul Hunkar Note Edited: 0014810
2021-09-06 06:34 Ganesh Rao Note Added: 0014812
2021-09-06 06:34 Ganesh Rao Status feedback => assigned
2022-08-02 20:06 Paul Hunkar Project Compliance Test Tool (CTT) Unified Architecture => CTT UA Test Case