SIMATIC S7-1500F CPU 1516F-3 PN/DP central processing unit with work memory 3 MB for program and 7.5 MB for data 1st interface: PROFINET IRT with 2-port switch 2nd interface: PROFINET RT 3rd interface: PROFIBUS 6 ns bit performance SIMATIC Memory Card required ****approvals and certificates according to entry 109817466 at support.industry.siemens.com to be considered! ***