SIMATIC S7-300 SM321 16-channel 24-125 VDC diagnostic input / 6ES7321-7EH00-0AB0

Siemens6ES7321-7EH00-0AB0Product image is not available.

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ARAN VISION reference: AV-REF-Siemens-6ES7321-7EH00-0AB0
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
Digital inputs: 16 x 24 to 125 VDC
Isolation groups: 1 group of 16 inputs
Input characteristics: IEC61131 Type1
Module features: Channel-configurable diagnostics, programmable diagnostic and channel-based hardware interrupts, programmable input delays; parameter reassignment in RUN
Input voltage constraint: Do not mix electrically safe and hazardous contact input voltages on the 16 inputs of the same module
Reviewed document edition: 05/2022 / A5E00105505-AK
Document pages: PDF 84, 85
Current lifecycle status: Not established by historical manual; confirm current lifecycle and supply separately
Module notes: Exact standard ordering code only; SIPLUS variants are separate products. Verify hardware revision, host compatibility, load and installation limits before ordering.

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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: 6ES7321-7EH00-0AB0 · Checked: 2026-10-22View / print the ARAN VISION specification sheet Official manufacturer source · Siemens

Source reviewed: 2026-10-22

Description

6ES7321-7EH00-0AB0: S7-300 signal module reviewed in its own section of the May 2022 manufacturer equipment manual. Verify load limits, hardware revision, compatibility and installation before ordering. The historical source does not establish current stock, lifecycle or Iran demand.

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Siemens

6ES7321-1BH02-0AA0

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

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: 6ES7321-1BH02-0AA0 · Checked: 2026-10-17

Siemens

6ES7321-1BH10-0AA0

SIMATIC S7-300 SM321 16-channel 24 VDC digital input / 6ES7321-1BH10-0AA0

Controller family: SIMATIC S7-300Digital inputs: 16 x 24 VDC

Siemens

6ES7321-1BH50-0AA0

SIMATIC S7-300 SM321 16-channel 24 VDC digital input / 6ES7321-1BH50-0AA0

Controller family: SIMATIC S7-300Digital inputs: 16 x 24 VDC

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