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Siemens 6ES7321-1BL00-0AA0 S7-300 SM321 Digital Input front view
Siemens 6ES7321-1BL00-0AA0 S7-300 SM321 Digital Input side view
Siemens 6ES7321-1BL00-0AA0 S7-300 SM321 Digital Input detail view

Siemens 6ES7321-1BL00-0AA0 S7-300 SM321 Digital Input

Application: High-density isolated SM321 input module with thirty-two 24 VDC channels.

Product familySIMATIC S7-300
Minimum order1 Piece
Applicable ratings32 DI; 24 VDC; 40-pin front connector
LifecyclePM410: Product cancellation since 2025-10-01
20 years of automation industry experience · Response within 24 hours
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  • Delivery from stock
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  • Shipped from the China
Product Specifications
Manufacturer Siemens AG
Item number 6ES7321-1BL00-0AA0
Country of Origin Germany
Lead Time 2-3DAYS
After-Sales Support For after-sales support, please contact May.
HS Code / Commodity code Please confirm the destination before shipping
FAQ

Quotes are valid for 30 days from the day the quote is received unless stated otherwise at the time of quotation.

Yes,we offer one year warranty for all new products.

Yes. We worked with FEDEX/DHL/TNT/UPS/ allowing us to provide swift global delivery of parts to any corner of the world.

Normally 3-5 working days,some remote areas 5-7 days more.

Product information
Order-control reference
6ES7321-1BL00-0AA0
32-CHANNEL DIGITAL INPUT

Match every character of the complete ordering reference, including its suffix. A visually similar component or nearby model must not be treated as interchangeable unless the installed configuration is confirmed.

Exact-order technical data

6ES7321-1BL00-0AA0 Technical Data

Exact item scope
Input capacity32 digital inputs
Rated load voltage24 VDC with a 20.4-28.8 VDC permissible range
Logic thresholdsOFF state -30 to +5 V; ON state 13-30 V
Typical channel current7 mA for signal 1
Transition delayMinimum 1.2 ms and maximum 4.8 ms
Power loss6.5 W typical
Potential groupingTwo groups of sixteen channels, optically isolated from the backplane
Connector and size40-pin front connector; 40 × 125 × 120 mm
Module weightApproximately 260 g
Model-specific application profile

High-density S7-300 input profile

The 1BL00 module doubles the input density of the sixteen-point SM321 while retaining the standard S7-300 module width. Wiring therefore depends on the complete forty-pole connector plan.

Cabinet roleConcentrates a larger set of 24 VDC field states into one rack position
Thermal checkAccount for the higher module dissipation when grouping densely populated input cards
Connector boundaryA twenty-pole connector from the lower-density model must not be treated as compatible

Commercial Confirmation

Industrial automation inspection and quotation support
Price and actual availabilityConfirmed for the requested quantity in the written quotation.
Supplied-item conditionIdentified in the quotation and order documents before purchase.
Warranty termsStated in the written quotation for the item being supplied.
Lead time and shippingPLC Autocontroller reference: 2–3 days. Actual timing is quoted by quantity, destination and required date.
Quote Preparation

Four details keep the quotation concise

ab@mooreplc.com
01Full item number
02Quantity
03Destination
04Required date
Product-Specific FAQ
Model-specific scope, verified data and ordering boundaries.
01

Does the input timing require parameterization?

No. Siemens marks the standard-input delay as non-parameterizable.

02

What isolation test level is specified?

The channel groups are tested at 500 VDC relative to the backplane bus.

03

Are diagnostic functions available on this order number?

The official data lists no diagnostic function, diagnostic alarm or hardware interrupt.

04

What is the maximum two-wire sensor quiescent current?

The published limit is 1.5 mA.

Additional Catalog References

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MOTOROLA MVME172-333 YASKAWA USAHEM-01-TL41
IAI PDR-I-200L-2 REXROTH CSB01.1C-SE-ENS-NNN-L1-S-NN-FW
HARDY 1756-2WS FISHER CL6824X1-A6 12P0767X032
PERSKE KNS 51.14-2D DAFT 3402063400 640-34020633XD-1DA 640-34020633XD-2DA
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Email InquiryRequest a quotation by emailSend the required brand, model and quantity for quotation.
ab@mooreplc.com

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