V9001

Code

V9001

Message

VM operand stack overflow

The VM operand stack exceeded the maximum depth declared in the bytecode container. This is an internal error indicating a mismatch between the compiler’s stack depth analysis and the actual execution.

This error should not occur during normal operation. It indicates a bug in the IronPLC compiler or VM.

Report this as a bug at https://github.com/ironplc/ironplc/issues with the .iplc file and the source program that produced it.

Think IronPLC is wrong about this?

If you believe this diagnostic is incorrect, open an issue on GitHub with a small sample that demonstrates the problem.