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Siemens SIMATIC S7-1500 6ES7521-7BH00-0AB0 DI Module

Name: Siemens 6ES7521-7BH00-0AB0
Brand: Siemens
SKU: 6ES7521-7BH00-0AB0
Availability: InStock

Siemens 6ES7521-7BH00-0AB0 SIMATIC S7-1500 16-channel digital input module.

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

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ManufacturerSiemens

Part number6ES7521-7BH00-0AB0

Channels 16 DI

Voltage 24 V DC

Input Type 2 (IEC 61131)

Input Delay 0.05-20 ms

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12-month warranty

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Veteran-owned

CAGE: 9NK75

16 digital inputs 24V DC operation High-speed counting function Parameterizable input delay Isochronous mode support Diagnostics and diagnostics

Product description

The Siemens 6ES7521-7BH00-0AB0 is a digital input module for the SIMATIC S7-1500 PLC system. It provides 16 digital inputs, operating at 24V DC, grouped in sets of eight. The module supports sensor supply (24V DC) and is classified as input type 2 according to IEC 61131. It offers parameterizable input delays from 0.05 to 20 ms and supports isochronous mode up to 250 µs.

This module is ideal for connecting various digital sensors and switches to an S7-1500 PLC, enabling automation tasks in manufacturing, process control, and building automation. Its integrated counting function, capable of up to 20 kHz, is beneficial for applications like pulse counting, speed measurement, and position sensing.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 6ES7521-7BH00-0AB0. We provide reliable and cost-effective solutions for your industrial automation needs, ensuring you get quality components quickly.

Technical specifications

Channels	16 DI
Voltage	24 V DC
Input Type	2 (IEC 61131)
Input Delay	0.05-20 ms
Isochronous Mode	up to 250 µs
Counting Function	up to 20 kHz
Connector	Screw or Push-in terminals

Common applications

Manufacturing automation

Process control

Building automation

Packaging machines

Material handling

Machine control

Compatible systems

Siemens SIMATIC S7-1500 PLC CPUs TIA Portal software

Also known as

Siemens S7-1500 DI module 6ES7521-7BH00-0AB0 input module SIMATIC 16-channel digital input

Replaces / compatible with

This module is part of the SIMATIC S7-1500 I/O system and can replace previous generation digital input modules with similar specifications.

Technical note

Expert tip

Use shielded cables for digital inputs to minimize noise interference, especially when operating at higher frequencies or in electrically noisy environments.

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Frequently asked questions

What is the maximum counting frequency for the Siemens 6ES7521-7BH00-0AB0 digital input module?

The Siemens 6ES7521-7BH00-0AB0 digital input module features an integrated counting function capable of operating at up to 20 kHz. This makes it suitable for applications requiring high-speed pulse counting or frequency measurement.