SIMATIC S7-300 CPU317F-2 PN/DP – Central processing unit with 1.5 MB work memory – 1st interface MPI/DP 12 Mbit/s – 2nd interface Ethernet PROFINET – with 2-port switch – Micro Memory Card required – we can load firmware version: V3.1.0 / V3.1.1 / V3.2.3 / V3.2.6