Integration with External Systems Flashcards
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Read the first 7 Integration with External Systems flashcards as text
What is the role of the 'IVI Compliance Package' when integrating IVI-class instrument drivers with TestStand?
Answer: It provides standardized driver interfaces enabling interchangeable instrument control
The IVI Compliance Package installs IVI-class driver interfaces that standardize instrument control, allowing TestStand sequences to swap instruments without code changes.
In TestStand, when using the 'Batch Synchronization' model with external systems, what event signals all UUTs to proceed past a synchronization point?
Answer: A semaphore release by the last UUT to arrive
In Batch Synchronization, the last UUT thread to arrive at the sync point releases the semaphore, unblocking all waiting UUT threads simultaneously.
Which TestStand database step type is used to log test results to an external SQL database without writing custom SQL?
Answer: Schema-mapped Database Log step using TestStand's built-in DB logging
TestStand's built-in Database Logging schema maps result properties to table columns automatically, requiring only an ODBC connection string and no custom SQL.
When a TestStand sequence calls an external web service using the LabVIEW HTTP VIs, what must be configured in the sequence to handle the asynchronous HTTP response?
Answer: A Wait for HTTP Response step or polling loop checking the operation handle
Asynchronous HTTP calls return an operation handle; the sequence must poll or call a Wait step on that handle to retrieve the response before proceeding.
Which TestStand configuration file defines the mapping between result property names and external database column names?
Answer: The Database Schema file (.dbschema or .xsd) referenced in the result list
The .dbschema or .xsd schema file referenced by the TestStand result list controls how test result properties map to database table columns.
In TestStand, what is the correct way to ensure an external shared library (DLL) is unloaded and reloaded between test runs to reset its global state?
Answer: Set the DLL load option to 'Release when sequence is idle' in the DLL adapter
Setting 'Release when sequence is idle' in the DLL adapter ensures TestStand unloads the DLL when no sequence is running, resetting its global state for the next run.
When integrating TestStand with LabVIEW using the LabVIEW adapter, what happens if the called VI's connector pane parameters do not match the step's parameter mapping?
Answer: TestStand throws a run-time error indicating parameter mismatch
A connector pane mismatch between the VI and the step's parameter mapping causes a run-time error in TestStand, stopping execution until the mapping is corrected.