Central Processing Unit for S5-155U and S5-150S Systems
The 6ES5926-3SA12 serves as the central processor for large-scale SIMATIC S5 automation systems. Engineers deploy this CPU 926 module in demanding process control applications across petrochemical, power generation, and metallurgical industries. Consequently, the processor executes user programs, coordinates communication tasks, and manages data processing with high reliability.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 6ES5926-3SA12 |
| Manufacturer | Siemens |
| Series | SIMATIC S5 |
| Module Type | CPU 926 Processor Module |
| Compatible Systems | S5-155U, S5-155H, S5-150S |
| Processor | High-Performance 32-Bit |
| User Memory | Integrated RAM, expandable via submodules |
| Boolean Instruction Time | 0.1–0.3 μs |
| Word Instruction Time | 1–3 μs |
| Communication Interfaces | MPI, Optional PROFIBUS DP |
| Power Supply | 5V DC (backplane) + 24V DC (memory backup) |
| Power Consumption | 5–8 W (typical) |
| Operating Temperature | 0°C to +60°C |
| Storage Temperature | -25°C to +70°C |
| Protection Class | IP20 |
| Net Weight | 0.505 kg |
Processing Performance
The module features a high-performance 32-bit microprocessor for rapid instruction execution. Boolean operations complete in just 0.1 to 0.3 microseconds, while word instructions require 1 to 3 microseconds. Therefore, the 6ES5926-3SA12 handles thousands of I/O points and complex closed-loop control algorithms efficiently.
Communication and Expansion
An integrated MPI interface supports programming device and HMI connectivity. Additionally, optional PROFIBUS DP capability enables master or slave operation within distributed networks. Engineers can expand communication options through CP modules for Ethernet and ASCII protocols.
System Integration
The processor occupies a single slot within S5-155U racks and supports hot-swap maintenance. Galvanic isolation protects sensitive circuitry from field transients. Furthermore, comprehensive self-diagnostics with LED status indicators simplify troubleshooting and maintenance procedures.
Details
| Weight | 0.5 kg |
|---|---|
| Dimensions | 25 × 232 × 10 mm |
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