SUBROUTINE NESTING EXCEEDS LIMIT

What does 0030 mean?

The nesting level of JSR (Jump to Subroutine) instructions exceeded the controller's available memory space for the call stack. This is a non-user fault, indicating an architectural limitation has been surpassed by an overly deep program structure.

• Excessive number of nested JSR instructions in the program.
• Deep subroutine calls consuming too much call stack memory, leading to an overflow.
• Recursive subroutine calls without proper termination conditions.

Click steps to track your progress.

1. 1

   Correct the user program to reduce the nesting levels of JSR instructions, ensuring they meet the controller's specified restrictions.

2. 2

   Restructure the program logic to minimize deep subroutine calls, possibly by using flatter logic or status bits.

3. 3

   Reload the modified program and enter Run mode.