SIMATIC S7-300 CPU319F-3 PN/DP – Central processing unit with 2.5 MB work memory – 1st interface MPI/DP 12 Mbit/s – 2nd interface DP master/slave 3rd interface Ethernet PROFINET – Micro Memory Card required – we can load firmware version: V3.2.1 / V3.2.4 / V3.2.6 / V3.2.7