SIMATIC S7-400 Standard-and Failsafe CPUs

The CPU range of the SIMATIC S7-400 meets all demands of the medium and upper performance range. Various integrated interfaces and additional failsafe controllers make the S7-400 suitable for a wide range of possible automation tasks.

On this page: CPU 412-1 CPU 412-2 CPU 414-2 CPU 414-3 CPU 414-3 PN/ DP

CPU 416-2 CPU 416F-2 CPU 416-3 CPU 416-3 PN/DP CPU 416F-3 PN/DP CPU 417-4

SIMATIC S7-400 CPU 412-1 Entry CPU for applications of the medium performance range RAM 288 KB MPI/PROFIBUS DP-Master-interface Memory Card slot
SIMATIC S7-400 CPU 412-2 CPU with a medium program memory and quantity framework RAM 512 KB MPI/PROFIBUS DP-Master-Interface additional PROFIBUS DP-Interface Memory Card slot
SIMATIC S7-400 CPU 414-2 CPU for more demanding applications of the medium performance range RAM 1 MB MPI/PROFIBUS DP-Master-Interface additional PROFIBUS DP-Interface Memory Card slot
SIMATIC S7-400 CPU 414-3 CPU for more demanding applications of the medium performance range and additional communication tasks RAM 2.8 MB MPI/PROFIBUS DP-Master-Interface 2 additional PROFIBUS DP-Interfaces Slot for additional IF-Module Memory Card slot
SIMATIC S7-400 CPU 414-3PN/DP CPU for more demanding applications of the medium performance range and additional  PROFINET functionality RAM 2.8 MB MPI/PROFIBUS DP-Master-Interface additional PROFIBUS DP-Interface additional PROFINET Interface Slot for additional IF-Module Memory Card slot
SIMATIC S7-400 CPU 416-2 Entry CPU for the upper performance range RAM 5.6 MB MPI/PROFIBUS DP-Master-Interface additional PROFIBUS DP-Interface Memory Card slot
SIMATIC S7-400 CPU 416F-2 Failsafe entry CPU for the upper performance range RAM 5.6 MB MPI/PROFIBUS DP-Master-Interface additional PROFIBUS DP-Interface Memory Card slot complies with safety requirements up to SIL 3 to IEC 61508 and up to Cat. 4 according to EN 954-1
SIMATIC S7-400 CPU 416-3 Standard CPU for the upper performance range and additional communication tasks RAM 11.2 MB MPI/PROFIBUS DP-Master-Interface 2 additional PROFIBUS DP-Interfaces Slot for additional IF-Module Memory Card slot
SIMATIC S7-400 CPU 416-3PN/DP Standard CPU for the upper performance range with PROFINET functionality RAM 11.2 MB MPI/PROFIBUS DP-Master-Interface additional PROFIBUS DP-Interface additional PROFINET Interface Slot for additional IF-Module Memory Card slot
SIMATIC S7-400 CPU 416F-3PN/DP Failsafe CPU for the upper performance range with PROFINET functionality RAM 11.2 MB MPI/PROFIBUS DP-Master-Interface additional PROFIBUS DP-Interface additional PROFINET Interface Slot for additional IF-Module Memory Card slot complies with safety requirements up to SIL 3 to IEC 61508 and up to Cat. 4 according to EN 954-1
SIMATIC S7-400 CPU 417-4 High End CPU for the upper performance range and additional communication tasks RAM 30 MB MPI/PROFIBUS DP-Master-Interface 3 additional PROFIBUS DP-Interfaces 2 slots for additional IF-Modules Memory Card slot