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Siemens SIMATIC S7-1500 Digital Input Module DI 16x24V DC HF

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ManufacturerSiemens

Part number6ES7521-1BH00-0AB0

Channels 16

Voltage 24V DC

Input Delay 0.05..20 ms

Input Type 3 (IEC 61131)

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12-month warranty

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Veteran-owned

CAGE: 9NK75

16 digital inputs Fast response time (0.05 ms) Diagnostic functions Hardware interrupt capability Supports 2 counter inputs Input Type 3 compatibility High-frequency operation

Product description

The Siemens 6ES7521-1BH00-0AB0 is a SIMATIC S7-1500 digital input module (DI) with 16 channels operating at 24V DC, designated as 'HF' for high-frequency response. It supports input delays from 0.05 ms to 20 ms and offers diagnostics capabilities and hardware interrupts. The inputs are grouped in sets of 16, with two inputs usable as counters. A front connector (screw or push-in) must be ordered separately.

This module is ideal for applications requiring fast and reliable digital signal acquisition in industries such as manufacturing, automation, and control systems. Its diagnostic features and hardware interrupt capabilities enhance system monitoring and response times for critical events.

Stanlo Automation, your trusted veteran-owned source for surplus industrial automation parts, provides the Siemens 6ES7521-1BH00-0AB0. We ensure you can source quality components to maintain and upgrade your systems efficiently.

Technical specifications

Channels	16
Voltage	24V DC
Input Delay	0.05..20 ms
Input Type	3 (IEC 61131)
Diagnostics	Yes
Hardware Interrupts	Yes
Counter Inputs	2
Grouping	16 channels
Front Connector	Sold Separately

Common applications

Machine Control

Factory Automation

Process Monitoring

Digital Signal Acquisition

Control Panels

Manufacturing Execution Systems

Compatible systems

SIMATIC S7-1500 PLC Systems TIA Portal Engineering Software

Also known as

Siemens S7-1500 DI 16x24V HF SIMATIC DI 16x24V DC HF Siemens 6ES7 521-1BH00-0AB0

Replaces / compatible with

This module can replace other Siemens S7-1500 digital input modules with similar channel counts and voltage ratings. It is a high-frequency variant suitable for demanding applications.

Technical note

Expert tip

The front connector (Type 6ES7590-1BC00-0AA0 for screw terminals or 6ES7590-1BB00-0AA0 for push-in) must be ordered separately for this module.

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Frequently asked questions

What is the input delay for the Siemens 6ES7521-1BH00-0AB0 module?

The Siemens 6ES7521-1BH00-0AB0 offers a flexible input delay ranging from 0.05 ms to 20 ms, allowing for precise timing in various automation applications.