Iv3 debug

[kuh0005]

This pull request enhances the logic and robustness of the program switching process in the Axo_IV3 component for Keyence Vision systems. The changes focus on handling interrupted program changes, improving state management, and providing clearer diagnostics through new error codes and messages.

Improvements to program switching logic:

• Added a new internal variable _ProgChangeInterrupted to track if a program change was interrupted, allowing the system to handle incomplete switching scenarios more reliably. [1] [2]
• Refined the state machine in ChangeProgramTask to better handle edge cases, such as resetting the program number and program switching request when interrupted, and ensuring proper transitions based on device responses. [1] [2]

Diagnostics and error handling:

• Introduced new error codes (514, 515) and corresponding messages to provide more granular feedback when waiting for specific signals (BUSY reset and program number match) during the program switching process. [1] [2]
• Extended the valid range for restore-triggered progress values, improving the reliability of the restore mechanism during task execution.

Minor changes:

• Fixed a minor whitespace issue in the using directives in Axo_IV3.cs.

These updates make the program switching process more robust, easier to troubleshoot, and better aligned with the expected device behavior.