Yokogawa Electric Corporation released ProSafe-RS R3.02.20, an enhanced version of the ProSafe-RS safety instrumented system . Yokogawa Electric Corporation released ProSafe-RS R3.02.20, an enhanced version of the ProSafe-RS safety instrumented system that offers improved connectivity with the ProSafe-SLS SIS, enabling the status of both systems to be monitored onscreen by operators of the CENTUM VP integrated production control system.