PLC | Siemens | 6ES7 211-1AE40-0XB0 SIMATIC S7-1200 CPU 1211C 6ES7211-1AE40-0XB0

Product Description: 6ES7211-1AE40-0XB0

The 6ES7211-1AE40-0XB0 is an 8-channel digital input signal board for the SIMATIC S7-200 SMART PLC. Plugged directly onto the front of the CPU, it adds eight isolated 24 V DC inputs without increasing overall footprint. The “High- Feature” designation provides individual channel diagnostics (short-circuit, wire-break, overvoltage), configurable input filtering, and status LEDs, making it ideal for reliable sensor and switch monitoring in compact control systems.

Key Features

• Eight isolated 24 V DC inputs, PNP/NPN compatible
• Channel diagnostics: short-circuit, wire-break, overvoltage detection
• Configurable debounce/filter time per channel via STEP 7-MicroWIN SMART
• Status LEDs for input state and fault indication
• Snap-on installation to CPU front, no DIN-rail space required
• Seamless integration and configuration in TIA Portal

Technical Specifications

• Number of Inputs: 8
• Input Voltage: 24 V DC ± 20 %
• Input Current: ≤ 6 mA per channel
• Isolation: 500 V DC channel-to-bus
• Diagnostics: Short-circuit, wire-break, overvoltage
• Debounce Time: 0…20 ms configurable
• Power Consumption: 1.5 W (from CPU backplane)
• Mounting: Plug-in to S7-200 SMART CPU front
• Module Width: Matches CPU width (no extra)
• Operating Temperature: 0 … +55 °C
• Protection Class: IP20 (cabinet installation)
• Weight: ≈ 100 g

Application Areas

• Direct expansion of S7-200 SMART CPUs for discrete input tasks
• Monitoring proximity sensors, pushbuttons, and limit switches
• Compact OEM machines and panel installations
• Systems requiring high-feature diagnostics without added footprint

Advantages

• Adds eight digital inputs without extra rail space
• High-feature diagnostics improve uptime and troubleshooting
• Configurable input filtering enhances noise immunity
• Simple snap-on installation accelerates commissioning
• Full support in STEP 7-MicroWIN SMART and TIA Portal for consistent engineering