Attention

IronPLC supports IEC 61131-3 Structured Text excluding I/O mapping.

V9002

Code

V9002

Message

VM operand stack underflow

The VM attempted to pop from an empty operand stack. This is an internal error indicating the compiler emitted unbalanced push/pop sequences.

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.