SIMATIC S7-400H, CPU 414H central processing unit for S7-400H and S7-400F/FH, 4 interfaces: 1 MPI/DP, 1 DP and 2 for sync modules, 768 KB memory (384 KB data/384 KB program)
********** Replacement part ********* SIMATIC S7-400, CPU 416F-2 Central processing unit with: work memory 2.8 MB, (1.4 MB code, 1.4 MB data), 1st interface MPI/DP 12 Mbit/s, 2nd interface PROFIBUS DP Can be used with software package Distributed Safety as of V5.2
*** Spare part *** SIMATIC S7-1500, CPU 1515-2 PN, central processing unit with work memory 500 KB for program and 3 MB for data, 1st interface: PROFINET IRT with 2-port switch, 2nd interface: PROFINET RT, 30 ns bit performance, SIMATIC Memory Card required