SIMATIC S7-400, CPU416F-3 PN/DP CENTRAL PROCESSING UNIT WITH: 11.2 MB WORKING MEMORY, (5.6 MB KB CODE, 5.6 MB DATA), INTERFACES: 1. IF MPI/DP 12 MBIT/S, 2. IF ETHERNET/PROFINET, 3. IF IFM-MODULES PLUGGABLE APPLICABLE W. SOFTWARE PACKAGE S7 DISTRIBUTED SAFETY >=V5.4