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Computer Systems & Software Updates Flashcards

7 cards from real SAW practice questions. Tap to flip, then mark Knew It or Still Learning โ€” missed cards come back until you master them.

Read the first 7 Computer Systems & Software Updates flashcards as text
  1. A SAW controller communicates with a robot arm using Modbus TCP. After a software update, communication drops intermittently. The most likely cause is:

    Answer: A changed Modbus polling interval or register mapping in the updated software

    Software updates can alter Modbus register maps or polling intervals, causing timing mismatches that result in intermittent communication failures.

  2. Which software diagnostic tool is most useful for identifying the root cause of a SAW controller crash after an update?

    Answer: The system error log or crash dump file

    Error logs and crash dumps capture the system state at the time of failure, providing the most direct diagnostic information for post-update crashes.

  3. In a SAW automation cell, 'shadow mode' testing after a software update means:

    Answer: Running the updated software while the old version controls the machine, comparing outputs without affecting production

    Shadow mode runs the new software in parallel with the active system, comparing outputs to validate behavior before cutting over to production.

  4. A SAW machine update log shows the previous firmware version was 3.1.2 and the new version is 3.2.0. Based on semantic versioning, this update most likely includes:

    Answer: New features that are backward compatible

    In semantic versioning, a minor version increment (middle number) indicates new backward-compatible features were added.

  5. A SAW facility wants to ensure that only authorized personnel can initiate controller software updates. Which access control method is most appropriate for an industrial environment?

    Answer: Role-based access control (RBAC) with unique user credentials

    RBAC with unique credentials ensures only authorized roles can initiate updates and creates an auditable trail of who performed each update.

  6. After a SAW controller update, the travel speed display shows values in mm/min but the WPS requires in/min. This is most likely a result of:

    Answer: The unit system configuration defaulting to metric in the new software version

    Software updates may reset unit system preferences to a default (often metric), requiring the operator to reconfigure the display units to match the WPS.

  7. A SAW quality engineer wants to audit whether software updates altered any weld procedure parameters. Which system feature provides the most reliable audit trail?

    Answer: Immutable timestamped change logs stored in a separate database

    Immutable timestamped change logs stored separately from the controller provide a tamper-resistant audit trail of all parameter and software changes.