SIPLUS S7-1500 CPU 1518F-4 PN/DP based on 6ES7518-4FP00-0AB0 with conformal coating, 0…+60 °C, central processing unit with work memory 4.5 MB for program and 10 MB for data, 1st interface: PROFINET IRT with 2-port switch, 2nd interface, Ethernet, 3rd interface, Ethernet, 4th interface, PROFIBUS, 1 ns bit performance, SIMATIC Memory Card required.