Siemens 6ES7414-4HM14-0AB0 SIMATIC CPU 414H central unit is a hot-standby CPU for the S7-400H family, designed to keep critical automation running in S7-400H and S7-400F/FH systems. It provides 2.8 MB of memory, allocated as 1.4 MB for data and 1.4 MB for code, and exposes four interfaces: 1 MPI/DP, 1 DP, and 2 connections for synchronization modules, enabling robust multi-module and networked configurations. Power is supplied via the system power supply rather than a separate local rail. This CPU module is intended for high-availability applications requiring uninterrupted control and fast switchover between redundant processors.
