6ES7421-7DH00-0AB0

Siemens 6ES7421-7DH00-0AB0 – digital input module

The Siemens 6ES7421-7DH00-0AB0 is a digital input module designed for SIMATIC S7-400 PLC systems. It provides 16 digital input channels for receiving signals from sensors, switches, push buttons and other field devices used in industrial automation applications.

The module ensures reliable signal acquisition, fast processing and stable operation in demanding industrial environments.

Technical overview:
• Series: SIMATIC S7-400
• Module type: Digital Input Module (DI)
• Model: 6ES7421-7DH00-0AB0
• Number of inputs: 16 channels
• Input type: Digital
• Input voltage: 24 V DC
• Integration: SIMATIC S7-400 system
• Diagnostics: Integrated status indicators
• Mounting: S7-400 rack installation
• Protection class: IP20

Typical applications:
• Sensor signal acquisition
• Machine automation
• Industrial control systems
• Process monitoring
• Manufacturing equipment
• PLC-based automation systems

About the manufacturer:

Siemens is a global leader in industrial automation and digitalization technologies, offering reliable PLC systems, communication products and control solutions used worldwide.