Industrial automation technical reference
ARAN VISIONفارسی
Siemens6ES7321-1BH02-0AA0

SIMATIC S7-300 SM321 16-channel 24 V DC input module / 6ES7321-1BH02-0AA0

Siemens6ES7321-1BH02-0AA0Product image is not available.

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ARAN VISION reference
AV-REF-Siemens-6ES7321-1BH02-0AA0
Category
PLC and HMI
Manufacturer sourcing lead time
Manufacturer confirmation required

Delivery to your location is confirmed separately.

Documents / datasheets
ARAN VISION specification sheet

Technical specifications

Controller family
SIMATIC S7-300
Module model
SM321
Digital inputs
16
Rated input voltage
24 V DC
Electrical isolation grouping
One group of 16; do not infer per-channel isolation
Supported signal sources
Switches and 2/3/4-wire proximity switches; check sensor and wiring conditions
Variant scope
Standard 6ES module; SIPLUS 6AG variant is not substituted
Reviewed document edition
05/2022 / A5E00105505-AK
Document pages
PDF 69 and 70; exact model properties and wiring diagram
Current lifecycle status
Not established by the technical manual; confirm current model lifecycle and supply separately
Report a product-data issue

Documents / datasheets

Manufacturer manual · S7-300 Module data / 05/2022 / A5E00105505-AK · en · PDF · 05/2022 / A5E00105505-AKManufacturer source: Siemens · Model explicitly covered in family document · Covered models: 6ES7321-1BH02-0AA0 · Checked: 2026-10-17View / print the ARAN VISION specification sheetOfficial manufacturer source · Siemens

Source reviewed: 2026-10-17

Description

6ES7321-1BH02-0AA0 is an S7-300 system component documented in the May 2022 equipment manual. Verify the complete ordering code, configuration and supplied revision before selection; the manual does not establish current supply status.

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Products in the same technical family

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Siemens
6ES7321-1BL00-0AA0

SIMATIC S7-300 SM321 32-channel 24 V DC input module / 6ES7321-1BL00-0AA0

Rated input voltage: 24 V DCSupported signal sources: Switches and 2/3/4-wire proximity switches; check sensor and wiring conditions

Technical specificationsManufacturer manual · S7-300 Module data / 05/2022 / A5E00105505-AK · en · PDF · 05/2022 / A5E00105505-AKManufacturer source: Siemens · Model explicitly covered in family document · Covered models: 6ES7321-1BL00-0AA0 · Checked: 2026-10-17