ILLEGAL INSTRUCTION IN INTERRUPT FILE

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The program contains a Temporary End (TND), Refresh (REF), or Service Communication instruction within an interrupt subroutine (STI, EII, HSC) or a user fault routine. These specific instructions are not permitted in interrupt contexts due to their system-level implications or timing characteristics. This is a nonrecoverable fault.

• Unsupported instructions (TND, REF, Service Communication) are placed inside an interrupt service routine (STI, EII, HSC) or user fault routine.
• Incorrect programming practices for interrupt service routines, violating execution rules for these contexts.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Correct the program by removing Temporary End (TND), Refresh (REF), or Service Communication instructions from all interrupt subroutines (STI, EII, HSC) and user fault routines.

2. 2

   Recompile and reload the modified program into the controller.

3. 3

   Enter the Run mode after the program is successfully reloaded.