Product Overview

The Siemens 6DD1607-0AA2​ is a FM458-1 DP Application Module, purpose-engineered as a specialized high-speed technology module for Siemens’ SIMATIC S7-400 programmable logic controller platform. Unlike a standard CPU, the Siemens 6DD1607-0AA2​ is a dedicated application processor built to offload and execute time-critical, computationally intensive control tasks that would otherwise overwhelm the main S7-400 CPU. At its core, the Siemens 6DD1607-0AA2​ integrates a powerful 64-bit RISC processor, 16 MB of DRAM, 64 MB of SDRAM, and 512 KB of SRAM—delivering the computational horsepower required for the most demanding closed-loop control, motion control, trajectory planning, and high-speed counting applications in industrial automation.Within the SIMATIC S7-400 architecture, the Siemens 6DD1607-0AA2​ occupies a unique and critical niche. While the central S7-400 CPU manages sequential logic, communication, and system housekeeping, the Siemens 6DD1607-0AA2​ assumes responsibility for executing dedicated, high-speed algorithms with deterministic precision. The module features an integrated PROFIBUS DP interface, enabling it to operate as a master or slave on a high-speed DP network for direct communication with distributed I/O, intelligent drives, servo amplifiers, and other field devices. This architecture is the cornerstone of multi-processor computing strategies, where complex automation tasks are decomposed into open-loop control, calculation, and communication sub-tasks—each assigned to the most suitable specialized processor. The Siemens 6DD1607-0AA2​ excels in scenarios where standard PLC scan times fall short, acting as the “speed engine” that delivers microsecond-level responsiveness.Beyond its S7-400 role, the Siemens 6DD1607-0AA2​ is also recognized within the SIMADYN D / SIMATIC TDC technology module family as an application-specific control function module for complex drive, process, and machine control tasks. The module provides 8 fast digital inputs (24 V DC) on connector X2 for interrupt-driven alarm tasks with edge or level triggering, and a serial RS-232 (V.24) interface for CFC test-mode startup and diagnostics. Powered by 5 V DC and 24 V DC (with a 4.8–5.25 V permissible range on the 5 V rail), the Siemens 6DD1607-0AA2​ draws a typical 1.5 A and maximum 3 A, with SRAM backup via battery (max backup current 15 µA) and a hardware real-time clock with 500 ms resolution. Weighing approximately 1.0–1.16 kg and occupying a single S7-400 slot, the Siemens 6DD1607-0AA2​ is a compact yet formidable computing resource. Configurable using Control Function Charts (CFC) and optionally Sequential Function Charts (SFC), the Siemens 6DD1607-0AA2​ empowers automation engineers to implement sophisticated, high-dynamic control strategies with uncompromising precision—making it the definitive choice for rolling mills, paper machines, power exciters, and multi-axis synchronous drive systems worldwide.

Technical Specifications