What is the function of the 6ES7321-1BH02-0AA0?

It is a digital input module (SM 321) for the Siemens S7-300 PLC, providing 16 isolated inputs for 24V DC signals.

What are the input voltage requirements?

The rated input voltage is 24V DC. The permissible range for signal "0" is -30 to +5 V, and for signal "1" is 13 to 30 V.

Does this module require a front connector?

Yes, a 20-pin front connector is required for wiring.

What is the 6ES7321-1BH02-0AA0?

Siemens SIMATIC S7-300 Digital Input Module (6ES7321-1BH02-0AA0)

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6ES7321-1BH02-0AA0

Name: 6ES7321-1BH02-0AA0
Brand: Siemens

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Product Information

Product Describe

DIGITAL INPUT MODULE
SIMATIC S7-300
ISOLATED
16-DIGITAL INPUTS
24VDC
1 X 20 POLE
SUCCESSOR FOR 6ES7321-1BH01-0AA0

Technical specifications for 6ES7321-1BH02-0AA0

Product Model

6ES7321-1BH02-0AA0
Product Parameters

SM321 Digital Input Module
Tariff Code

8537101190
Country of origin

GERMANY
Place of shipment

Xiamen, China
Estimated Shipping Size

4x11.6x12.4cm
Manufacturer

Siemens
Weight

0.2 kg
Rated value (DC)

24 V
permissible range, lower limit (DC)

20.4 V
permissible range, upper limit (DC)

28.8 V
from backplane bus 5 V DC, max.

10 mA
Power loss, typ.

3.5 W
Number of digital inputs

16
Isolation tested with

500 V DC

Factory New

These are new and current items that are procured from the manufacturer.
New No Package

These parts are new. They have not been used, but their original packaging is no longer available.
New In Opened Package

These parts are new. They have not been used, but their original packaging has been opened or the packaging is significantly aged.
New In Sealed Package

Parts are new. They have not been used and still have their original package seal intact.
New in Original Package

These parts are new. The packages were not originally sealed by their original manufacturer.

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FAQs

What is the function of the 6ES7321-1BH02-0AA0?+

It is a digital input module (SM 321) for the Siemens S7-300 PLC, providing 16 isolated inputs for 24V DC signals.
What are the input voltage requirements?+

The rated input voltage is 24V DC. The permissible range for signal "0" is -30 to +5 V, and for signal "1" is 13 to 30 V.
Does this module require a front connector?+

Yes, a 20-pin front connector is required for wiring.
What is the 6ES7321-1BH02-0AA0?+

Siemens SIMATIC S7-300 Digital Input Module (6ES7321-1BH02-0AA0)

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MORE INFORMATION

Overview Manuals Technical notes Product Applications Hardware Mounting & Wiring

Features:

SIMATIC S7-300
16 inputs, isolated in groups of 16
24 VDC rated input voltage
Suitable for switches and two / three / four-wire BEROs (proximity switches)

The 6ES7321-1BH02-0AA0 is a high-performance 16-point digital input module. It connects to standard switches, two-wire proximity switches (BERO), and other digital sensors in S7-300 automation systems, converting external process signal levels to the controller's internal logic levels.

This module features opto-isolation and exchanges data with the CPU via a backplane bus. Its compact design (only 40 mm wide) and slotless mounting make it suitable for control cabinets with high space and flexibility requirements.

The 6ES7321-1BH02-0AA0 Siemens Digital Input Module may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).

Siemens 6ES7321-1BH02-0AA0 Digital Input Module Manuals, Datasheets, Drivers, Link

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

The Siemens 6ES7321-1BH02-0AA0 is a "standard" 16-channel digital input module for the SIMATIC S7-300. Unlike high-feature (HF) versions, this module is passive and does not support software-programmable diagnostics or interrupts.

Manufacturing Automation:Monitors positions, interlocks & conveyor status via proximity & limit switches.
Automotive Industry:High-speed signal processing for robotic cells & conveyor synchronization.
Food & Beverage:Bottle detection, fill-level sensing & E-stop monitoring on packaging lines.
Process Control:Tracks valve positions, pump status & level switches with galvanic isolation.

This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.

Mounting: The module must be snapped onto a standard S7-300 DIN rail. Ensure the "U-connector" (bus connector) is plugged into the back of the module before mounting to link it with the CPU or adjacent modules.

Front Connector: This module requires a 20-pin front connector. Note that the connector is coded the first time it is plugged in; it will then only fit into modules of the same type.

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6ES7321-1BH02-0AA0

Product Information

Technical specifications for 6ES7321-1BH02-0AA0

Factory New

New No Package

New In Opened Package

New In Sealed Package

New in Original Package