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Siemens SIMATIC S7-400

6ES7431-1KF20-0AB0

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The Siemens 6ES7431-1KF20-0AB0 is a Analog Input Module designed for SIMATIC S7-400 applications.

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Siemens 6ES7431-1KF20-0AB0

Technical Specifications

Official SM 431 input, conversion and construction data.

01Product IdentityOfficial module data

ManufacturerSiemens

Article Number6ES7431-1KF20-0AB0

Product DesignationSM 431

Product FamilySIMATIC S7-400

02Analog Input DataPublished channel data

Analog Inputs8

Resolution14 bit

Potential SeparationIsolated

Module FunctionAnalog input

03Signal & ConversionOfficial data sheet

Signal TypesVoltage / current / resistance

Sensor Connections2-, 3- and 4-wire

Basic Conversion Time52 µs

Full Module Time0.42 ms

04Construction DataMechanical and wiring data

Shielded Cable Length200 m maximum

Dimensions25 × 290 × 210 mm

Net WeightApprox. 500 g

Diagnostic FunctionNot integrated

Siemens 6ES7431-1KF20-0AB0 Product Support

Frequently Asked Questions

Product-specific configuration, compatibility, application and ordering guidance for 6ES7431-1KF20-0AB0.

How many signal channels can this SM 431 use for each measurement type?

It provides eight channels for voltage or current measurement and up to four channels for resistance measurement.

Which transmitter and resistance connections are supported?

Current inputs support 2-wire and 4-wire transmitters; resistance measurement supports 2-, 3- and 4-wire connections, with line resistance included in 2- and 3-wire results.

What scan performance is available with all channels enabled?

Siemens lists a 52 µs basic conversion time and about 0.42 ms module execution time for all released channels, with resolution up to 14 bits.

When is the external 24 V L+ supply required?

The load supply is needed when the module powers connected 2-wire transmitters; passive voltage, current or resistance sensors must follow their respective wiring diagrams.

How should interference rejection be commissioned?

Parameterize the integration setting for none, 400 Hz, 60 Hz or 50 Hz rejection, then verify sensor wiring, shield continuity and stable reference potentials.

What installation limits matter for long analog runs?

Siemens specifies shielded cable up to 200 m. Route it away from power conductors and terminate the shield according to the S7-400 analog-module instructions.

What should be recorded before ordering or migrating this module?

Record the exact 6ES7431-1KF20-0AB0 number, enabled signal types, transmitter supply use, filter settings and the fact that this article does not provide a diagnostics function.

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Important delivery information

Product availability, dispatch date, freight cost and delivery time depend on the confirmed order and destination. Packing lists, commercial invoices and available origin documentation can be prepared according to the confirmed order. Please contact AMIKON for current commercial and shipping details.

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With 20 years of experience in industrial automation, AMIKON supplies discontinued and hard-to-find DCS, PLC and TSI spare parts to customers worldwide.

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Products supplied by AMIKON include a standard 12-month warranty. Warranty handling is based on the confirmed order, product label, fault information and supporting photos or videos.

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AMIKON can coordinate domestic export customs procedures and arrange international express or sea freight. Packing lists, commercial invoices and available origin documentation can be prepared according to the confirmed order.

04 · TECHNICAL INFORMATION

Model and Specification Support

We assist customers with model identification, specification review, compatibility checks and Datasheet or manual searches. Support also includes distinguishing earlier and later model versions and checking whether a submitted model reference is complete and correctly written.

05 · PRE-DISPATCH CHECK

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06 · INDUSTRIAL PACKAGING

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Packaging is selected according to the component type, shipment size and transport method to support safe international handling.

07 · ORDER DOCUMENTATION

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Commercial invoices, packing lists and available origin information can be prepared according to the confirmed order and destination requirements.

08 · AFTER-SALES SUPPORT

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Siemens 6ES7431-1KF20-0AB0 SM 431 Analog Input Module

6ES7431-1KF20-0AB0

20 Years of Experience in Industrial Automation Supply

6ES7431-1KF20-0AB0

Technical Specifications

Frequently Asked Questions

How many signal channels can this SM 431 use for each measurement type?

Which transmitter and resistance connections are supported?

What scan performance is available with all channels enabled?

When is the external 24 V L+ supply required?

How should interference rejection be commissioned?

What installation limits matter for long analog runs?

What should be recorded before ordering or migrating this module?

Payment and Worldwide Delivery

Order Confirmation

Product Preparation

International Shipping

Dispatch and Tracking

Support at Every Stage of Your Order

Warranty, Sourcing and Global Export Support

12-Month Product Warranty

Discontinued and Hard-to-Find Parts

One-Stop International Shipping

Model and Specification Support

Product Verification Before Shipment

Secure Packing for International Transit

Commercial and Shipping Documents

Responsive Order Follow-Up

Recommended Industrial Models

Related Products