Siemens 6ES7516-3AN02-0AB0 SIMATIC S7-1500, CPU 1516-3 PN/DP, central processing unit with 1 MB program and 5 MB data memory, 1st interface: PROFINET IRT with 2-port switch, 2nd interface: PROFINET RT, 3rd interface: PROFIBUS, 10 NS bit throughput, SIMATIC memory card required