SIMATIC S7-400, CPU 414-3 Central processing unit with: Work memory 4 MB, (2 MB code, 2 MB data), 1st interface MPI/DP 12 Mbit/s, 2nd interface PROFIBUS DP, 3rd interface plug-in IFM module

SIMATIC S7-400, CPU 414-3 PN/DP Central processing unit with: work memory 4 MB, (2 MB code, 2 MB data), Interfaces: 1st interface MPI/DP 12 Mbit/s, (X1), 2nd interface Ethernet/PROFINET (X5), 3rd interface IF 964-DP plug-in (IF1)

SIMATIC S7-400, CPU416F-3 PN/DP Central processing unit with: work memory 11.2 MB, (5.6 MB code, 5.6 MB data), Interfaces: 1st interface MPI/DP 12 Mbit/s, 2nd interface Ethernet/PROFINET, 3rd interface plug-in IFM module Can be used with software package S7 Distributed Safety from V5.4

SIMATIC S7-400, CPU 414-3 PN/DP Central processing unit with: Work memory 4 MB, (2 MB code, 2 MB data), interfaces 1st interface MPI/DP 12 Mbit/s, (X1), 2nd interface Ethernet/PROFINET (X5) 3rd interface IF 964-DP plug-in (IF1)

SIMATIC S7-400H, CPU 414-5H, central processing unit for S7-400H and S7-400F/FH, 5 interfaces: 1x MPI/DP, 1x DP, 1x PN and 2 for sync modules, 4 MB memory (2 MB data/2 MB program),

SIMATIC S7-400H, CPU 414-4H PG Central processing unit for S7-400H 4 interfaces: 1 MPI/DP, 1 DP and 2 for sync modules 12 MB memory (10 MB data/2 MB program)

SIMATIC S7-400, CPU 417-4 Central processing unit with: work memory 30 MB, (15 MB code; 15 MB data) 1st interface MPI 12 Mbit/s; 2nd interface PROFIBUS DP, 3rd/4th interface plug-in IFM module

SIMATIC S7-400, CPU 416F-2, Central processing unit with: Work memory 8 MB, (4 MB code, 4 MB data), 1st interface MPI/DP 12 Mbit/s, 2nd interface PROFIBUS DP,

SIMATIC S7-400, CPU414F-3 PN/DP Central processing unit with: work memory 4 MB, (2 MB code, 2 MB data), Interfaces: 1st interface MPI/DP 12 Mbit/s, (X1), 2nd interface Ethernet/PROFINET (X5), 3rd interface IF 964-DP plug-in (IF1)

SIMATIC S7-400, CPU 417-4 4 MB work memory (2 MB code; 2 MB data) 1 MPI 12 Mbit/s; 1 PROFIBUS DP 3rd/4th interface plug-in IFM module

SIMATIC S7-400, CPU 416-2, Central processing unit with: Work memory 8 MB, (4 MB code, 4 MB data), 1st interface MPI/DP 12 Mbit/s, 2nd interface PROFIBUS DP,

SIMATIC S7-400H, CPU 416-5H, central processing unit for S7-400H and S7-400F/FH, 5 interfaces: 1x MPI/DP, 1x DP, 1x PN and 2 for sync modules, 16 MB memory (10 MB data/6 MB program)