[Cause]
A problem occurred during AB-RIO initialization. An error indicating the cause occurs together with PRIO-191; check the accompanying error.
[Countermeasure]
If a board-not-found message is reported, install the board securely and check that the DIP switches are set correctly. If firmware loading, startup, or configuration clearing fails, the firmware file may be missing or corrupted. There may also be a hardware problem.