Deployment & Troubleshooting Flashcards
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Read the first 7 Deployment & Troubleshooting flashcards as text
In a deployed TestStand environment, you need to update a code module DLL without stopping all running test stations. Which TestStand feature best supports this requirement?
Answer: Configuring the code module to load and unload per execution using the 'Load Options' setting
Setting the code module Load Option to load/unload per execution means the DLL is released after each call, allowing the file to be replaced between executions without a full station restart.
A test station's result log shows test steps passing, but UUT fails are not being reported to the factory MES system. The TestStand database logger appears healthy. What should you investigate?
Answer: The post-execution callback or result processing step that routes data to the MES
MES integration is typically handled in a post-execution callback (e.g., SequenceFilePostResultListeners or a custom process model step), so a failure there would prevent MES reporting while internal logging continues normally.
Which approach is recommended for deploying TestStand system configuration changes (Station Options, type palette) to a fleet of test stations consistently?
Answer: Use a configuration management script or installer that deploys standardized configuration files to each station
Scripted or installer-based deployment of standardized configuration files ensures consistency across a fleet and creates an auditable, repeatable process.
A newly deployed TestStand station fails with 'Unable to find process model sequence file'. What is the most likely fix?
Answer: Verify and correct the process model path in Station Options or ensure the process model file was included in the deployment
If the process model sequence file path in Station Options points to a location where the file doesn't exist on the deployed station, TestStand cannot initialize execution.
During troubleshooting, you want to inspect the value of a local variable at a specific step in a deployed sequence without access to the development environment. Which TestStand feature can help?
Answer: Use the TestStand Execution Viewer or a custom operator interface that exposes variable watch panels
The TestStand Execution Viewer (or a custom UI with variable watch functionality) allows inspection of execution state and variable values without requiring the full Sequence Editor.
A technician reports that a deployed TestStand application sometimes skips certain test steps with no error. Upon investigation, you find a 'Run Mode Override' is active. Where is this setting typically controlled?
Answer: In the sequence file's Step Properties under Execution Options
Run Mode Overrides (e.g., Force Pass, Force Fail, Skip) are configured per-step in the Step Properties under Execution Options and can persist into deployed environments if not cleared.
When deploying a TestStand application that uses NI hardware drivers (e.g., NI-DAQmx), what must be included in the deployment package?
Answer: The NI hardware driver runtime installers appropriate for the target hardware
NI hardware driver runtimes (e.g., NI-DAQmx Runtime) must be installed on the target machine to provide the OS-level communication layer for the hardware.