6ES7221-3AD30-0XB0 New Original Siemens S7-1200 Plc Programming Controller module

2. Key Selling Points

1. 8-Channel 24V DC Sinking (NPN) Digital Input – Optimized for NPN Sensors:Provides 8 independent sinking (NPN) input channels, designed for NPN sensors, proximity switches, and push buttons that output low-level signals, ideal for industrial systems in Asia and Japan.

2. Dedicated Input Type – Stable and Reliable Circuit Design:Features a fixed sinking input configuration (common terminal connected to 24V+), offering simpler circuitry and enhanced noise immunity compared to switchable types.

3. Plug-and-Play Installation – Easy Setup:Mounts directly to the right of the CPU, powered via backplane bus, no external power required. Removable terminal blocks simplify wiring and maintenance.

4. Comprehensive LED Indicators – Clear Status Feedback:Each input channel has an LED indicator for real-time ON/OFF status display, facilitating on-site debugging and troubleshooting.

5. Seamless Integration with S7-200 SMART System:Module address is automatically assigned; input states (e.g., I2.0–I2.7) can be accessed directly in STEP 7-Micro/WIN SMART software without complex configuration.