Technical Specifications: Siemens Simatic S7-1200
| Specifications | Details |
| I/O Expansion |
Supports connection of expansion I/O modules (including DI, DO, AI, AO). • SB (Signal Board): Plugs directly into the front of the CPU (supports 1 slot). • SM (Signal Module): External modules connected to the right; quantity depends on the specific CPU model. |
| Key Features |
• Supports Pulse Train Output (PTO) and Pulse Width Modulation (PWM) at $f_{max} = 100\text{ kHz}$. • 3 High-Speed Counters (HSC) with $f_{max} = 100\text{ kHz}$. • Integrated PID Controller with auto-tuning functionality. |
| PROFIBUS Communication |
Supports PROFIBUS via communication modules: CM 1243-5 (Master) and CM 1242-5 (Slave). • Max Speed: 12 Mbit/s. |
| PROFINET Communication |
Integrated PROFINET port supporting I/O and RT (Real-Time) standards (IRT not supported). • Max Speed: 100 Mbit/s. • Max distance: 100m via copper cable. |
| Security |
• Password protection for PLC program upload/download. • Know-how protection: Password-protected access and modification for OB, DB, FC, and FB blocks. |
| Web Server |
• Supports web server interface programming via Wi-Fi. • Supports Port Forwarding (NAT) for remote connection between PC and CPU. |
| CPU Memory |
Consists of 3 memory areas: • Load Memory: Stores the user program (Up to 4 MB). • Work Memory: Volatile memory for program execution (Up to 150 KB). • Retentive Memory: Non-volatile storage for data backup during power failure (Up to 10 KB). |
| Memory Card |
Supports external memory cards to expand Load Memory capacity. • Max capacity: 32 GB. |
| Programming Software |
Programmed via STEP 7 Basic (integrated within TIA Portal). • Supports three programming languages: LAD (Ladder), FBD (Function Block Diagram), and SCL (Structured Control Language). |
