SIPLUS S7-1500 CPU 1513F-1 PN based on 6ES7513-1FM03-0AB0 with conformal coating -40...+60 °C . central processing unit with work memory 900 KB for program and 2.5 MB for data, 1st interface: PROFINET IRT with 2-port switch, 25 ns bit performance, SIMATIC Memory Card required.