Siemens SIMATIC S7-400 · Analogue Input Module

Siemens 6ES7431-1KF00-0AB0

ECS rates the 6ES7431-1KF00-0AB0 as phase-out: still orderable, but on its way out. This is the time to plan, not panic.

  1. ActiveSold and supported normally
  2. Phase OutRetirement announced, still orderable
  3. CancellationNormal sale ended, spares may remain
  4. Total DiscontinuationNo manufacturer supply or repair

ECS stage: Phase Out. Siemens's published term: PM300: Active Product; phase-out effective.

Is the Siemens 6ES7431-1KF00-0AB0 being discontinued?

On ECS's lifecycle assessment, the 6ES7431-1KF00-0AB0 is in phase-out (phase-out announced October 2025): still orderable for now, but on its way out.

Source: ECS lifecycle assessment, based on ECS's internal lifecycle data in Command Centre. Last checked . Always confirm a specific part's status with the manufacturer before buying or planning a migration.

What Phase Out means for you

The manufacturer is retiring the part, but you can still buy it. Nothing needs ripping out. Four things are worth doing while it is still easy: find every unit you run, make sure you know where each one is, decide whether to hold spares, and price the move.

How ECS defines Phase Out · all four lifecycle stages

Before replacing an analogue module

With analogue I/O, the difficult part of a migration is often hidden in the configuration: signal type, range, scaling, resolution, isolation and any filtering used by the application.

We would capture both the hardware settings and the PLC scaling logic before choosing a replacement. That gives the commissioning engineer known reference values and avoids trying to recreate process calibration from a failed module.

ECS engineering guidance

6ES7431-1KF00-0AB0 part details

Manufacturer
Siemens
Range
SIMATIC S7-400
Name
SIMATIC S7-400 SM 431 isolated 8-channel analog input module, 13-bit resolution
Summary
Isolated 8-channel analog input signal module for the SIMATIC S7-400 system, supporting voltage, current, and resistance measurement with 13-bit resolution. Siemens lists the product as phase-out since 01-10-2025.

Common questions about the 6ES7431-1KF00-0AB0

Is the Siemens 6ES7431-1KF00-0AB0 being discontinued?

On ECS's lifecycle assessment, the 6ES7431-1KF00-0AB0 is in phase-out (phase-out announced October 2025): still orderable for now, but on its way out.

Can I still buy a 6ES7431-1KF00-0AB0?

Yes, through normal channels during the phase-out period. It is the cheapest point to buy any spares you want to hold.

An ECS engineer capturing a control panel on a tablet: PLC, drive and power supply identified and synced to Command Centre

Know where every unit is before one fails.

A Capture audit finds every 6ES7431-1KF00-0AB0 on your site, photographs it where it sits and checks it against manufacturer lifecycle status, so you know your exposure and where your spares are before a failure stops a line.

  • Every device located, photographed and lifecycle-checked
  • Findings report, plus a populated Command Centre
  • No production downtime
See how Capture works

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