Simatic S7-300, CPU 317TF-3 PN/DP, Central PROCESSING Unit FOR PLC, TECHNOLOGY and SAFETY, 1,5 MBYTE WORKING Memory, 1. Interface MPI/DP 12MBIT/S, 2. Interface DP(DRIVE), 3. Interface ETHERNET PROFINET with 2 PORT Switch, Integrated I/O FOR TECHNOLOGY, Front CONNECTOR (1 X 40PIN) and MICRO Memory Card MIN. 8 MB NECESSARY