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The Siemens 6ES7416-3FR05-0AB0 functions as a high-performance CPU for the SIMATIC S7-400 automation platform. This central processing unit handles complex, large-scale control tasks with substantial memory capacity. The module supports multi-processor operation for distributed and redundant system architectures.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Central processing unit (CPU) |
| Model | CPU 416-3 FR05 (High-end) |
| Program Memory | 5 MB (integrated) |
| Data Memory | 2.5 MB (integrated) |
| Processing Time (bit) | 50 ns (typical) |
| Processing Time (word) | 80 ns (typical) |
| Processing Time (float) | 200 ns (typical) |
| PROFIBUS Ports | 2 x RS-485 (9-pin D-sub) |
| MPI Port | 1 x RS-485 (9-pin D-sub) |
| Work Memory (RAM) | 5 MB (program), 2.5 MB (data) |
| Load Memory (Flash) | 8 MB (integrated) |
| Retentive Memory | 128 KB (battery-backed) |
| Energy Storage | Battery (6 months, typical) |
| Dimensions (W x H x D) | 233 x 160 x 40 mm |
| Weight | 0.8 kg |
| Internal Components | 1 x CPU core, 2 x PROFIBUS controllers, 1 x MPI interface |
| Power Supply | 5V DC (from backplane), 24V DC (external) |
| Power Consumption | 5V / 1.5A, 24V / 200 mA |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Protection Class | IP20 |
| Mounting | Rack-based (S7-400 rail) |
| Approvals | CE, UL, CSA, FM, ATEX (Zone 2) |
High-Speed Processing for Demanding Applications
The Siemens 6ES7416-3FR05-0AB0 executes bit operations in just 50 ns for lightning-fast logic. This exceptional speed handles complex calculations and real-time control with ease. Word operations complete in 80 ns for efficient data management. Floating-point math executes in 200 ns for sophisticated control algorithms.
Extensive Memory for Large-Scale Projects
Program memory of 5 MB accommodates extensive user code, function blocks, and libraries. Data memory of 2.5 MB stores large variable sets and structured data. The integrated 8 MB load memory holds firmware and project archives securely. Retentive memory of 128 KB preserves critical values during power interruptions.
Dual PROFIBUS Ports for Redundant Communication
Two independent PROFIBUS DP ports support cable redundancy and network segmentation. These interfaces connect to remote I/O, drives, and HMI devices seamlessly. The MPI port provides programming access and additional connectivity. Users can configure multi-processor systems for distributed control architectures.
Advanced Multi-Processor and Redundancy Support
The CPU 416-3 FR05 supports multi-processor mode for sharing control tasks across CPUs. This architecture enables fail-safe and high-availability system configurations. The module integrates seamlessly with S7-400H redundant systems. Users can implement hot-swappable configurations for maximum system uptime.
Robust Mechanical Construction for Rack Systems
The module follows the standard S7-400 format at 233 x 160 x 40 mm for rack mounting. This design ensures compatibility with all S7-400 rails and expansion modules. The unit weighs 0.8 kg for stable installation in control cabinets. The IP20-rated housing protects against accidental contact and dust ingress.
Battery-Backed Memory and Long-Term Data Retention
A lithium battery maintains the retentive memory for up to 6 months without power. This battery backup preserves crucial program variables and system parameters. Users can store safety-related data with confidence during power outages. The CPU includes battery monitoring for preventive maintenance alerts.