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Siemens 6AG1321-1FH00-7AA0 SIPLUS S7-300 Digital Input Module 16 DI

Siemens SIPLUS S7-300 SM 321 Digital Input Module

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ManufacturerSiemens

Part number6AG1321-1FH00-7AA0

Manufacturer Siemens

Series SIPLUS S7-300 SM 321

Part Number 6AG1321-1FH00-7AA0

Temperature Range -40°C to +70°C

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Conformal Coating Wide Operating Temperature Range 16 Digital Inputs 120/230V AC Operation Robust Design Galvanic Isolation

Product description

The Siemens 6AG1321-1FH00-7AA0 is a SIPLUS S7-300 SM 321 digital input module built for demanding industrial applications, with a broad operating temperature range of -40°C to +70°C and conformal coating for enhanced environmental protection.

This module offers 16 isolated digital inputs (DI) for 120V/230V AC signals. It is based on the 6ES7321-1FH00-0AA0 and includes a 1x 20-pole connector, ensuring reliable detection of AC digital signals from field devices.

This module is well-suited for industrial automation, plant automation panels, and control systems requiring robust AC input capabilities. Stanlo Automation, a veteran-owned distributor, provides this essential part to keep your operations running efficiently.

Technical specifications

Manufacturer	Siemens
Series	SIPLUS S7-300 SM 321
Part Number	6AG1321-1FH00-7AA0
Temperature Range	-40°C to +70°C
Digital Inputs	16 DI
Input Voltage	120/230 V AC
Connector	1x 20-pole
Conformal Coating	Yes
Isolation	Galvanic

Common applications

Industrial Automation

Plant Automation

Manufacturing

Harsh Environments

Control Systems

Compatible systems

Compatible with Siemens S7-300 PLC systems

Also known as

SIPLUS S7-300 SM 321 16DI AC Siemens DI Module 16 Channel AC

Replaces / compatible with

This SIPLUS SM 321 module is an enhanced version based on the Siemens 6ES7321-1FH00-0AA0, offering superior environmental resistance and AC input capabilities for 16 channels.

Technical note

Expert tip

Features galvanic isolation and is designed for operation in noisy industrial environments, ensuring stable AC signal acquisition.

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Frequently asked questions

What is the typical application for the Siemens 6AG1321-1FH00-7AA0 digital input module?

The Siemens 6AG1321-1FH00-7AA0 is commonly used in industrial automation for reliable detection of AC signals from field devices like switches and sensors in harsh environments, supporting plant automation panels and conveyor systems.