Siemens 6ES7421-1BL01-0AA0

The Siemens digital input module, part number 6ES7421-1BL01-0AA0, is engineered for seamless integration with the Simatic S7-400 programmable controllers, providing a robust solution for industrial automation. Featuring 32 digital inputs with a voltage rating of 24 volts DC, this module is essential for efficient data collection and processing in various applications. It operates effectively with a backplane bus current of 5 V DC, ensuring reliable performance and functionality. With a compact design measuring 25 mm in width, 290 mm in height, and 210 mm in depth, it is easy to incorporate into existing systems. This module also supports long cable runs of up to 1,000 meters for shielded cables and includes diagnostics functionality via an LED status indicator, enhancing operational monitoring. Designed for rugged environments, it boasts a tested isolation rating of 500 V DC, making it a trustworthy component in demanding industrial settings.