Siemens 6DD1607-0AA0 Module

Siemens 6DD1607-0AA0 is the FM458 application module for SIMATIC S7-400 controllers, designed to be installed in an S7-400 rack to extend automation capability with dedicated application logic alongside the base CPU and I/O backplane. Identified by the part number 6DD1607-0AA0, this module belongs to Siemens' FM458 family of application modules; Siemens also documents a DP-enabled variant under 6DD1607-0AA2, indicating the 0AA0 is the non-DP configuration. The FM458 module provides additional processing capacity for running user-defined control tasks and system-specific applications within an S7-400 installation, enabling more complex or resource-intensive control strategies without altering the main program flow. Compatible with SIMATIC S7-400 backplanes and typical expansion schemes, it occupies a dedicated rack slot and is used in industrial environments to supplement standard I/O and CPU functionality. This part number is listed in Siemens and third-party catalogs and repair/service listings under the FM458/SIMATIC S7-400 designation, confirming its identity as a Siemens application module designed for advanced automation tasks within established S7-400 architectures.