SM 321 digital input modules

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★ ★ ★ ★ ★ 4.9 4239 Reviews

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Description Reviews

6ES7321-1BP00-0AA0 SM321, 64 DI, DC 24V, 3MS, SINK/SOURE

Artikelnummer

6ES7321-1BP00-0AA0

		SIMATIC S7-300 DIGITAL INPUT SM321, OPTICALLY ISOLATED IN GROUPS OF 16, 64 DI,DC 24V, 3MS, SINKING/SOURCING TERMINAL BLOCKS 6ES7392-1.N00-0AA0 AND CABLES 6ES7392-4...0-0AA0 NECESSARY
Supply voltage
Load voltage L+
● Rated value (DC)		24 V
Input current
from backplane bus 5 V DC, max.		100 mA
Power losses
Power loss, typ.		7 W
Digital inputs
Number of digital inputs		64
Input characteristic curve in accordance with IEC 61131, type 1		Yes
Number of simultaneously controllable inputs
all mounting positions
— up to 40 °C, max.		64
— up to 60 °C, max.		32
horizontal installation
— up to 40 °C, max.		64
— up to 60 °C, max.		32
vertical installation
— up to 40 °C, max.		32
Input voltage
● Type of input voltage		DC
● Rated value (DC)		24 V
● for signal "0"		-30 to +5 V
● for signal "1"		13 to 30 V
Input current
● for signal "1", typ.		4.2 mA; Typical
Input delay (for rated value of input voltage)
for standard inputs
— Parameterizable		No
— at "0" to "1", min.		1.2 ms
— at "0" to "1", max.		4.8 ms
Cable length
● Cable length, shielded, max.		1 000 m
● Cable length unshielded, max.		600 m
Encoder
Connectable encoders
● 2-wire sensor		No
Isochronous mode
Isochronous operation (application synchronized up to terminal)		No
Interrupts/diagnostics/status information
Alarms
● Alarms		No
● Diagnostic alarm		No
● Hardware interrupt		No
Diagnostic messages
● Diagnostic functions		No
● Diagnostics		No
Diagnostics indication LED
● Group error SF (red)		No
● Status indicator digital input (green)		Yes
Galvanic isolation
Galvanic isolation digital inputs
● between the channels		No
● between the channels, in groups of		16
● between the channels and the backplane bus		Yes; Optocoupler
Isolation
Isolation checked with		500 V DC
Connection method
required front connector		Cable: 6ES7 392-4Bxx0-0AA0 terminal blocks: 6ES7 392-1xN00-0AA0
Dimensions
Width		40 mm
Height		125 mm
Depth		112 mm
Weights
Weight, approx.		230 g; approx.
last modified:		13.10.2014

6ES7321-1BP00-0AA0

ProductArticle Number (Market Facing Number)6ES7321-1BP00-0AA0Product Description SIMATIC S7-300 digital input SM 321, Isolated in groups of 16, 64 DI, 24 V DC, 3ms, Sink/source input Terminal blocks 6ES7392-1.N00-0AA0 and cable 6ES7392-4...0-0AA0 requiredProduct familySM 321 digital input modulesProduct Lifecycle (PLM)PM400:Phase Out StartedPLM Effective DateProduct phase-out since: 01.10.2023Price dataRegion Specific PriceGroup / Headquarter Price Group2AP / 2APList Price Show pricesCustomer Price Show pricesSurcharge for Raw MaterialsNoneMetal FactorNoneDelivery informationExport Control RegulationsAL : N / ECCN : EAR99HEstimated dispatch time1 Day/DaysNet Weight (kg)0,286 KgPackaging Dimension13,20 x 15,20 x 5,10Package size unit of measureCMQuantity Unit1 PiecePackaging Quantity1Additional Product InformationEAN4025515075066UPC662643401424Commodity Code85389091LKZ_FDB/ CatalogIDST73Product Group2288Group CodeR151Country of originGermanyCompliance with the substance restrictions according to RoHS directiveSince: 31.03.2008Product classA: Standard product which is a stock item could be returned within the returns guidelines/period.WEEE (2012/19/EU) Take-Back ObligationYesREACH Art. 33 Duty to inform according to the current list of candidates

Lead CAS-No. 7439-92-1 > 0, 1 % (w / w)

Information obligation imposed by Article 33, REACH Regulation: This product includes one or several articles in which the following substance of the candidate list is contained in concentrations higher than 0,1% weight by weight (w/w):

Lead

Based on the information currently available, we assume that these substances do not pose any risk if the articles are used as intended (including disposal). Please also refer to product documentation.

Lead monoxide (lead ... CAS-No. 1317-36-8 > 0, 1 % (w / w)

Lead monoxide (lead oxide)

Perfluorobutane sulfonic ... > 0, 1 % (w / w)

Perfluorobutane sulfonic acid (PFBS) and its salts

SCIP number

Classifications

	Version	Classification
eClass	12	27-24-22-04
eClass	6	27-24-22-04
eClass	7.1	27-24-22-04
eClass	8	27-24-22-04
eClass	9	27-24-22-04
eClass	9.1	27-24-22-04
ETIM	7	EC001419
ETIM	8	EC001419
ETIM	9	EC001419
IDEA	4	3566
UNSPSC	15	32-15-17-05

6ES7321-1BP00-0AA0

SIMATIC S7-300 digital input SM 321, Isolated in groups of 16, 64 DI, 24 V DC, 3ms, Sink/source input Terminal blocks 6ES7392-1.N00-0AA0 and cable 6ES7392-4...0-0AA0 required

5.0

★ ★ ★ ★ ★

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Reviews

All Reviews（31） Image/Video（0） star（31）

C**r

★ ★ ★ ★ ★ 07/05/2025

High-quality components, ensures consistent performance

(0)

E**a

★ ★ ★ ★ ★ 05/05/2025

Quality is top-notch with these SIEMENS SM 321 digital input modules

(0)

A**a

★ ★ ★ ★ ★ 03/05/2025

Longevity has been excellent, these are definitely durable

(0)

A**a

★ ★ ★ ★ ★ 02/05/2025

I have been using the TURCK MJ8-DT06-2S-0.3-DT04-12PA-0.3 for months and it has consistently proven its superior quality and durability.

(0)

A**x

★ ★ ★ ★ ★ 28/04/2025

Great build quality, feels solid and durable

(0)

L**y

★ ★ ★ ★ ★ 22/04/2025

The build quality is exceptional, these modules are a great value for money

(0)

O**r

★ ★ ★ ★ ★ 09/04/2025

Reliable and sturdy construction, holds up well in harsh conditions

(0)

S**a

★ ★ ★ ★ ★ 07/04/2025

Absolutely no issues with the input modules so far, very satisfied

(0)

A**a

★ ★ ★ ★ ★ 03/04/2025

Very satisfied with the build quality and reliability

(0)

S**a

★ ★ ★ ★ ★ 31/03/2025

Easy to install, but quality control could be improved

(0)

O**a

★ ★ ★ ★ ★ 25/03/2025

Highly satisfied with the quality and performance

(0)

W**m

★ ★ ★ ★ ★ 23/03/2025

Sturdy construction and solid performance

(0)

E**a

★ ★ ★ ★ ★ 21/03/2025

Seems durable, but needs more thorough testing

(0)

I**a

★ ★ ★ ★ ★ 12/03/2025

Had issues initially, but customer service resolved quickly

(0)

E**a

★ ★ ★ ★ ★ 12/03/2025

Exceeded my expectations in terms of reliability

(0)

J**n

★ ★ ★ ★ ★ 10/03/2025

I've had no quality concerns at all, Siemens has really delivered on their reputation

(0)

M**l

★ ★ ★ ★ ★ 09/03/2025

Great value for money with Siemens' reputation

(0)

G**m

★ ★ ★ ★ ★ 07/03/2025

The quality of the TURCK MJ8-DT06-2S-0.3-DT04-12PA-0.3 is exceptional, with precise engineering and robust construction.

(0)

E**E

★ ★ ★ ★ ★ 07/03/2025

The components of the TURCK MJ8-DT06-2S-0.3-DT04-12PA-0.3 are of high quality, ensuring reliable performance in demanding applications.

(0)

J**s

★ ★ ★ ★ ★ 04/03/2025

Quality is top-notch and built to last

(0)

N**h

★ ★ ★ ★ ★ 03/03/2025

Precision and consistency are impressive, feels like a premium product

(0)

D**d

★ ★ ★ ★ ★ 01/03/2025

Excellent for industrial applications, quality proven

(0)

O**a

★ ★ ★ ★ ★ 12/02/2025

Reliable and accurate input modules

(0)

A**a

★ ★ ★ ★ ★ 10/10/2024

The durability is commendable, even in harsh industrial environments

(0)

O**r

★ ★ ★ ★ ★ 20/08/2024

I've been using these for years and they've never let me down

(0)

E**n

★ ★ ★ ★ ★ 03/07/2024

The build and materials used are top-notch, ensuring durability

(0)

N**h

★ ★ ★ ★ ★ 30/06/2024

Siemens has a well-deserved reputation for producing top-quality products like the SM 321 modules

(0)

A**r

★ ★ ★ ★ ★ 14/12/2023

The Siemens SM 321 digital input modules are extremely reliable and of high quality

(0)

S**a

★ ★ ★ ★ ★ 01/12/2023

Excellent quality control throughout the manufacturing process

(0)

E**a

★ ★ ★ ★ ★ 29/11/2023

The precision and accuracy of these modules are impressive

(0)

L**m

★ ★ ★ ★ ★ 17/11/2023

I've had no issues with malfunction or degradation in performance

(0)

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