Key facts
- Brand
- Siemens
- Model
- CPU 31xC / CPU 31x
- Category
- Automation control Equipment
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2026-09-29
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Siemens SIMATIC S7-300 CPU 31xC & CPU 31x Technical Specifications Manual
User Manual 420 pages · 3.7 MB · EN
This manual provides technical specifications for the SIMATIC S7-300 CPU 31xC and CPU 31x series. It includes information on installation, communication interfaces, memory concepts, cycle and response times, and detailed hardware data for each CPU model.
The document is organized into sections such as Operator controls and indicators, Communication (including PROFINET and MPI), Memory concept, Cycle and response times, General technical specifications, and separate detailed specifications for each CPU variant (e.g., CPU 312C, CPU 314C‑2 PN/DP). It also contains legal information, safety notices, and references to online support resources.
All Siemens CPU 31xC / CPU 31x documents by type
User Manual 1
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.