PLCopen XML (IEC 61131-10) is the standard interchange format for PLC programs. Any program saved in FreePLC can be exported as PLCopen XML and imported into CODESYS, Beremiz, OpenPLC Runtime, or other IEC-compliant environments.
Supported: PROGRAM, FUNCTION_BLOCK, FUNCTION with ST body. Variable declarations (VAR, VAR_INPUT, VAR_OUTPUT) are preserved.