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Siemens SIPLUS S7-300 6AG1321-1BL00-2AA0 SM 321 Digital Input Module | Original New

Siemens SIPLUS S7-300 6AG1321-1BL00-2AA0 SM 321 Digital Input Module | Original New

SIEMENS | SIPLUS S7-300

6AG1321-1BL00-2AA0

SM 321 Digital Input Module

SIPLUS S7-300 SM 321 40-pole digital input module with conformal coating, 32 isolated 24 V DC inputs and extended -40 to +70 °C operation.

DIGITAL INPUTS: 32 DI
INPUT VOLTAGE: 24 V DC

CONNECTOR: 1 x 40-pole
OPERATING RANGE: -40 to +70 °C

LEAD TIME: In stock WARRANTY: 1 year

Email Inquiry [email protected]

WhatsApp +86 18159889985

Appurtenance:

siemens siplus s7 300 6ag1321 1bl00 2aa0 sm 321 digital input module original new-1

Overview
Technical Data
Inquiry
Functions
Interfaces
Installation
Diagnostics
FAQ
Recommend Models
Recommended Products

DIGITAL INPUTS 32 DI	INPUT VOLTAGE 24 V DC
CONNECTOR 1 x 40-pole	OPERATING RANGE -40 to +70 °C

Technical Data

Complete model	6AG1321-1BL00-2AA0
Brand	Siemens
Product family	SIPLUS S7-300
Product type	SM 321 isolated digital input module
Base product	6ES7321-1BL00-0AA0
Digital inputs	32 DI
Rated input voltage	24 V DC
Input characteristic	IEC 61131 Type 1
Connector	1 x 40-pole
Conformal coating	Yes
Operating temperature	-40 to +70 °C
Dimensions	40 x 125 x 120 mm (W x H x D)
Weight	Approx. 260 g
Lifecycle	Prod. Cancellation
EAN	4025515136163
RoHS status	Compliant since 01.01.2012
Country of origin	Germany

Inquiry

CONTACT

STELLA

Email Inquiry [email protected]

WhatsApp +86 18159889985

Functions

Isolated digital acquisition

Provides 32 isolated 24 V DC digital inputs for SIPLUS S7-300 control systems.

Extended environment

Conformal coating and an official operating range from -40 to +70 °C support demanding environments.

High channel density

Combines 32 input points in one 40 mm wide S7-300 signal module.

Input processing

IEC 61131 Type 1 input characteristics support standard 24 V DC field signals.

Interfaces

Field inputs

32 digital input channels rated for 24 V DC signals.

Front connection

One 40-pole connector carries field wiring to the module.

Signal thresholds

Official data lists -30 to +5 V for signal 0 and 13 to 30 V for signal 1.

System basis

SIPLUS version based on Siemens 6ES7321-1BL00-0AA0.

Installation

Model verification

Confirm 6AG1321-1BL00-2AA0 and the SIPLUS SM 321 designation before installation.

Module mounting

Install in the intended S7-300 station with system power removed.

Field wiring

Use the required 40-pole connector and verify every 24 V DC input assignment.

Temperature derating

Observe the official limits for simultaneously controllable inputs at elevated temperature.

Diagnostics

Channel status

Compare field voltage and process state for each of the 32 digital inputs.

Wiring inspection

Check the 40-pole connector, common references and conductor continuity.

Timing check

Official input delays are 1.2 ms minimum and 4.8 ms maximum for standard inputs.

Environmental check

Confirm actual ambient temperature remains within -40 to +70 °C and required derating.

FAQ

Q1. How can I verify that the quoted unit is the exact model?

Require a current nameplate photo showing 6AG1321-1BL00-2AA0 and SM 321 Digital Input Module. Compare digital inputs 32 DI and input voltage 24 V DC with the Siemens record.

Q2. How can I distinguish new, used and refurbished stock?

Request dated photos of 6AG1321-1BL00-2AA0, its labels, connectors, housing and packaging. Check for mounting marks, terminal wear, previous wiring and replaced labels.

Q3. How can I assess whether a supplier is legitimate?

Verify legal registration, traceable address, matching bank details and a written quotation identifying the complete model 6AG1321-1BL00-2AA0 without shortened suffixes.

Q4. What should an engineer verify before purchase?

Confirm digital inputs 32 DI, input voltage 24 V DC, connector 1 x 40-pole and all installation or compatibility conditions in the exact Siemens documentation.

Q5. What physical evidence should be requested before payment?

Request dated photos or video showing the full 6AG1321-1BL00-2AA0 nameplate, connectors, housing, packaging and quantity, with all suffixes readable.

Q6. Can a similar model or different suffix replace it?

Not automatically. Any replacement must match the exact SM 321 Digital Input Module function, interfaces, electrical characteristics, dimensions and engineering configuration. Obtain engineering approval before substitution.

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