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Siemens SIMATIC S7/PCS7 16-Channel Digital Input Module

Siemens SIMATIC S7/PCS7 Digital Input Module, 16 DI.

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ManufacturerSiemens

Part number6ES7321-7TH00-0AB0

Number of digital inputs 16

Input Voltage 24 V DC

Diagnostics Capable, Chatter monitoring, Pulse extension, Open-circuit detection

Input types Contacts, NAMUR encoder, 3/4-wire Bero

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12-month warranty

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Worldwide delivery

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Veteran-owned

CAGE: 9NK75

16 Digital Inputs 24V DC Operation Advanced Diagnostics Chatter Monitoring Pulse Extension Open-Circuit Detection NAMUR & Bero Sensor Support

Product description

The Siemens 6ES7321-7TH00-0AB0 is a SIMATIC S7/PCS7 digital input module providing 16 channels for 24V DC signals. It offers advanced diagnostics capabilities, including chatter monitoring, pulse extension, and open-circuit detection. This module is versatile, supporting various input types such as wired/unwired contacts, NAMUR encoders, and 3/4-wire Bero sensors.

This module is ideal for complex control and monitoring tasks where detailed signal analysis is required. Its features make it suitable for applications in process industries, automation systems, and machinery requiring precise input signal processing and fault detection.

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Technical specifications

Number of digital inputs	16
Input Voltage	24 V DC
Diagnostics	Capable, Chatter monitoring, Pulse extension, Open-circuit detection
Input types	Contacts, NAMUR encoder, 3/4-wire Bero
Connection	40-pole

Common applications

Process Industries

Automation Systems

Machine Building

Hazardous Area Monitoring

Signal Analysis

Control Systems

Compatible systems

SIMATIC S7, SIMATIC PCS 7, IM 153-2 HF, IM 153-4 HF

Also known as

Siemens SM 321 Input S7/PCS7 DI Module 6ES7 321-7TH00-0AB0

Replaces / compatible with

Designed for Siemens SIMATIC S7 and PCS 7 systems, compatible with IM 153-2 HF or IM 153-4 HF interface modules.

Technical note

Expert tip

The 'chatter monitoring' feature helps to stabilize signals from older or worn mechanical contacts, preventing multiple false triggers.

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Frequently asked questions

What types of sensors can be connected to the Siemens 6ES7321-7TH00-0AB0 module?

This module supports a variety of sensors and inputs, including standard contacts (wired or unwired), NAMUR encoders, and 3/4-wire proximity sensors (BEROs), offering great flexibility in system integration.