SIMATIC S7-400 SM431 8-channel analog input module / 6ES7431-1KF00-0AB0

SIMATIC S7-400 SM431 8-channel analog input module; specifications are qualified to the May 2017 official catalogue. Verify current lifecycle, supplied revision and project configuration when requesting a quote.

Manufacturer part number: 6ES7431-1KF00-0AB0
Brand: Siemens
Category: PLC and HMI
Catalog status: Request a quotation

Technical specifications

Controller family: SIMATIC S7-400
Module designation: SM431 analog input
Width (mm): 25
Height (mm): 290
Depth (mm): 210
Approximate weight (g): 500
Qualification: No thermocouple/RTD capability inferred from adjacent KF10 column; ordering table heading says output but technical section establishes input
Required slots: 1
Analog voltage/current inputs: 8
Resistance measurement channels: 4
Resolution including sign: 13 bit
Voltage ranges: 1..5 V; -1..1 V; -10..10 V
Current ranges: -20..20 mA; 4..20 mA
Resistance range: 0..600 ohm
Analog isolation scope: Internal/external isolation; no isolation between channels
Document pages: PDF 62, 63, 64, 65, 69
Reviewed document edition: ST 400 / May 2017 / E86060-K4678-A151-A1-7600

Manufacturer technical catalog · ST 400 / May 2017 / E86060-K4678-A151-A1-7600 · en · PDF · ST 400 / May 2017 / E86060-K4678-A151-A1-7600Manufacturer source: Siemens · Model explicitly covered in family document · Covered models: 6ES7431-1KF00-0AB0 · Checked: 2026-10-17Official manufacturer source

This sheet provides a quick technical summary. For design, installation and final selection, review the latest official manufacturer documentation and verify the complete part number.