SIMATIC S7-1500TF, CPU 1517TF-3 PN, central processing unit with 6 MB work memory for program and 50 MB for data, 1st interface: PROFINET IRT with 2-port switch, 2nd interface: PROFINET IRT, with 2-port switch, 3rd interface: PROFINET basic services 0.6 n bit performance, SIMATIC Memory Card required