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Siemens SIMATIC S7-300 Digital Input SM 321 (6ES7321-1BH82-0AA0)

Name: Siemens 6ES7321-1BH82-0AA0
Brand: Siemens
SKU: 6ES7321-1BH82-0AA0
Availability: InStock

Siemens SIMATIC S7-300 SM 321 Digital Input Module, 16-channel.

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

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ManufacturerSiemens

Part number6ES7321-1BH82-0AA0

Manufacturer Siemens

Series SIMATIC S7-300 SM 321

Part Number 6ES7321-1BH82-0AA0

Number of Inputs 16 DI

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16 digital inputs 24V DC nominal voltage Optically isolated Suitable for expanded temperature range S7-300 compatible IEC 61131 Type 1 input characteristic

Product description

The Siemens SIMATIC S7-300 SM 321 digital input module, part number 6ES7321-1BH82-0AA0, is designed for reliable data acquisition in industrial automation. This module features 16 digital inputs (DI) operating at 24V DC, with optical isolation for enhanced signal integrity. It utilizes a 20-pin connector for easy integration into S7-300 systems.

This module is suitable for connecting standard switches and 2-wire proximity sensors, making it versatile for various control and monitoring applications in manufacturing, process control, and building automation.

Stanlo Automation, a veteran-owned surplus parts distributor, offers this SIMATIC S7-300 module. We provide high-quality, tested surplus components to help you maintain and upgrade your automation infrastructure efficiently.

Technical specifications

Manufacturer	Siemens
Series	SIMATIC S7-300 SM 321
Part Number	6ES7321-1BH82-0AA0
Number of Inputs	16 DI
Input Voltage	24 V DC
Isolation	Optically Isolated
Connector	20-pin
Expanded Temperature Range	Yes
Input Delay	1.2 - 4.8 ms

Common applications

Industrial automation

PLC systems

Process control

Machine control

Data acquisition

Manufacturing

Compatible systems

SIMATIC S7-300 PLC systems

Also known as

SIMATIC S7-300 SM 321 DI Siemens 16-channel input module 6ES7321-1BH82-0AA0

Replaces / compatible with

This module is a standard SM 321 digital input module for the SIMATIC S7-300 series. For specific cross-references, consult Siemens documentation.

Technical note

Expert tip

Ensure the use of a 20-pin front connector for proper connection to this module, and consider shielded cables for longer unshielded runs.

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Frequently asked questions

What is the input voltage and isolation for the Siemens 6ES7321-1BH82-0AA0?

The Siemens 6ES7321-1BH82-0AA0 module has 16 digital inputs that operate at 24V DC. It features optical isolation between the channels and the backplane bus for enhanced signal integrity.