Siemens 6ND2302-4PA3The Siemens 6ND2302 4PA3 is a high performance digital input module specifically engineered for industrial automation, seamlessly integrating with SIMATIC S7 200 and S7 300 programmable logic controllers (PLCs). This compact unit features four digital inputs capable of supporting both NPN and PNP configurations, making it versatile for monitoring and controlling various processes. With a robust operating range from 20C to 60C and a maximum input