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Siemens SIMATIC S7-400 6ES7421-1BL00-0AA0 Digital Input Module

Name: Siemens 6ES7421-1BL00-0AA0
Brand: Siemens
SKU: 6ES7421-1BL00-0AA0
Availability: InStock

Siemens SIMATIC S7-400 SM 421 digital input module, 32 DI, 24V DC.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

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ManufacturerSiemens

Part number6ES7421-1BL00-0AA0

Inputs 32 DI

Voltage 24V DC

Isolation Optical

Series SIMATIC S7-400 SM 421

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12-month warranty

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Veteran-owned

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32 Digital Inputs 24V DC Operation Optical Isolation SIMATIC S7-400 Compatibility High Reliability

Product description

The Siemens SIMATIC S7-400 SM 421 module (6ES7421-1BL00-0AA0) is a digital input module featuring 32 optically isolated inputs for 24V DC signals. This module provides reliable digital signal acquisition for automation tasks within the robust S7-400 platform.

This module is suitable for a wide range of industrial applications, including manufacturing, process control, and material handling, where precise monitoring of discrete 24V DC signals is required. It integrates seamlessly into the SIMATIC S7-400 system for efficient plant automation.

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Technical specifications

Inputs	32 DI
Voltage	24V DC
Isolation	Optical
Series	SIMATIC S7-400 SM 421

Common applications

Industrial Automation

Process Control

Manufacturing

PLC Systems

Data Acquisition

Compatible systems

SIMATIC S7-400 PLC Systems

Also known as

Siemens SM 421 DI Module S7-400 32 Channel Input 6ES74211BL000AA0

Replaces / compatible with

This module is a direct replacement for other Siemens S7-400 digital input modules with similar specifications. Compatible with various S7-400 CPUs.

Technical note

Expert tip

Ensure proper wiring and grounding for optimal optical isolation performance when integrating this module into your S7-400 rack.

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Frequently asked questions

What is the voltage rating for the Siemens 6ES7421-1BL00-0AA0 digital input module?

The Siemens 6ES7421-1BL00-0AA0 SM 421 digital input module is designed for 24V DC signals. It features 32 optically isolated inputs to reliably process these signals within an S7-400 automation system.