If the 2-hour runtime limit is a dealbreaker, consider these legal alternatives (though they are not Elau):
None of these will compile native Elau code, but they teach the same IEC 61131-3 structure. elau epas3 software download free
EPAS3 is a proprietary Integrated Development Environment (IDE) for PacDrive controllers (formerly Elau). It is based on CODESYS and used for programming motion control and logic applications. If the 2-hour runtime limit is a dealbreaker,
Important assumption: you mean Elau (Bertrandt/Emerson/Schneider/SEW-style) EPAS3 industrial servo/drive software (firmware tools, configuration or parameter editors). If you meant something else, say so. None of these will compile native Elau code,
Assuming you have obtained a legitimate installer and a USB license dongle (yellow or green Schneider/Elau key), here is the installation process: