

The 6ES7656-6CL30-1BF4 is a Siemens SIMATIC PCS 7 CPU 410 Redundancy Automation System, a cornerstone of high-availability process automation. This CPU 410-5H model integrates seamlessly into redundant S7-400H systems, providing dual-channel fail-safe operation for industries like oil and gas, chemical, and power generation. With its robust architecture, it ensures seamless switchover between primary and backup CPUs, maintaining process continuity even during maintenance or faults. The unit features embedded PROFIBUS DP and PROFINET interfaces, enabling direct connectivity to distributed I/O and smart field devices. Its 64 MB RAM supports complex control algorithms and historical data logging, while the integrated diagnostics via SIMATIC PCS 7 software simplify troubleshooting. Engineered for durability, it operates reliably in temperatures from 0°C to 60°C and withstands shock and vibration typical in industrial environments. This CPU is a critical component for building resilient, scalable automation systems that meet stringent safety and availability standards.
| Parameter | Specification |
|---|---|
| Model Number | 6ES7656-6CL30-1BF4 |
| Product Type | SIMATIC PCS 7 CPU 410 Redundancy Automation System |
| CPU Type | CPU 410-5H (for redundant S7-400H systems) |
| Memory (RAM) | 64 MB (integrated, expandable via memory card) |
| Interface 1 | PROFIBUS DP (MPI/DP, 12 Mbit/s) |
| Interface 2 | PROFINET (2 ports, switchable, 100 Mbit/s) |
| Redundancy Support | Yes (S7-400H architecture, automatic switchover) |
| Operating System | SIMATIC PCS 7 V9.0 or higher (compatible) |
| Power Supply | 24 V DC (via backplane or external PS) |
| Power Consumption | Typical 15 W, max 25 W |
| Operating Temperature | 0°C to +60°C (horizontal mounting) |
| Storage Temperature | -40°C to +70°C |
| Relative Humidity | 5% to 95% (non-condensing) |
| Vibration Resistance | 10 Hz to 58 Hz: 0.075 mm; 58 Hz to 500 Hz: 1g |
| Shock Resistance | 15g, 11 ms (half-sine) |
| Degree of Protection | IP20 (per IEC 60529) |
| Dimensions (W x H x D) | Approx. 50 mm x 290 mm x 210 mm (module only) |
| Weight | Approx. 1.2 kg |
| Certifications | CE, cULus, ATEX (Zone 2), IECEx (Zone 2) |
| Application | Process control, DCS, high-availability systems |

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
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Original and fast!
2020/02/22