System Audit DCS PCS neo Readiness focuses exclusively on the checking of framework conditions for an evolution of an existing PCS 7 system to PCS neo. Based on the PCS 7 engineering data, an analysis of the functions of PCS 7 used in the project and their implementation in the project with regard to an realization of the functions based on PCS neo is performed. In addition, all hardware components used in the PCS 7 project are checked for compatibility with PCS neo.