Eight isolated 16-bit input channels for voltage, current and thermocouple signal acquisition in SIMATIC S7-400 systems.
Siemens 6ES7431-7KF00-0AB0 is the SIMATIC S7-400 SM 431 analog input module for eight voltage, current or thermocouple signals. Siemens specifies 16-bit resolution, galvanic isolation with individual channel rooting, diagnostics, hardware alarms and a 20 ms conversion time. The module draws up to 1,200 mA from the 5 V DC backplane bus and has typical power loss of 4.6 W. Procurement should verify the complete order number, measurement type and range, thermocouple compensation method, front connector, wiring, channel parameters, rack assignment and STEP 7 hardware configuration before replacement. Similar SM 431 variants support different sensor types and must not be substituted by appearance alone.
| Commercial Item | Status |
|---|---|
| Product Condition | Original new |
| Availability | In stock |
| Official Lifecycle | PM300: Active Product; product phase-out since 2025-10-01 |
| Warranty | With 1 year warranty |
| Shipping | Worldwide shipping options available |
Condition, availability and warranty are Stockoems commercial information, not manufacturer commitments.
| Item | Officially Confirmed Data |
|---|---|
| Manufacturer | Siemens |
| Complete Part Number | 6ES7431-7KF00-0AB0 |
| Product Type | SIMATIC S7-400 SM 431 analog input module |
| Analog Inputs | 8 voltage/current inputs |
| Resolution | 16 bit |
| Supported Signals | Voltage, current and thermocouple |
| Electrical Isolation | Isolated with single rooting |
| Diagnostics / Hardware Alarm | Supported / supported |
| Conversion Time | 20 ms |
| Backplane Current | 5 V DC, max. 1,200 mA |
| Power Loss | Typically 4.6 W |
| Front Connector | 6ES7431-7KF00-6AA0, 48-pole screw contacts |
| Net Weight | 1.006 kg |
| Country of Origin | GERMANY |
| Application Context | Required Review |
|---|---|
| Process signal acquisition | Confirm the selected voltage or current range and transmitter loop design. |
| Thermocouple temperature measurement | Verify thermocouple type and thermocouple compensation arrangement. |
| S7-400 rack maintenance | Match rack position, module parameters, diagnostics and interrupt assignment. |
| Legacy spare planning | Retain STEP 7 configuration, wiring records, label photos and front connector evidence. |
Siemens lists 6ES7431-7KF00-0AB0 as PM300: Active Product and states product phase-out since 2025-10-01. This wording is retained without relabelling the module Discontinued.
It is a SIMATIC S7-400 SM 431 analog input module for eight voltage, current or thermocouple signals.
Siemens specifies eight analog inputs with 16-bit resolution.
The module supports voltage, current and thermocouple measurement. RTD and resistance measurement are not specified for this order code.
Siemens lists PM300: Active Product and states product phase-out since 2025-10-01; this page does not convert that wording into Discontinued.
Siemens identifies 6ES7431-7KF00-6AA0, a 48-pole screw-contact connector.
Verify the exact suffix, signal type and range, thermocouple compensation, connector and wiring, rack position, channel parameters, alarms and STEP 7 configuration.
Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
We compare the complete part number, every suffix character and available label evidence against the inquiry.
Visible housing, terminals, seals and packaging are reviewed where inspection evidence is available.
Engineers compare the stated system, interface, power, signal, connector and project requirements before quotation.
Clear product, nameplate and connector photographs support identity and visible-condition checks.
| Service Stage | What It Covers |
|---|---|
| Protective packaging | Product shape, terminal areas and shipping distance guide cushioning and outer-carton handling. |
| Worldwide shipping | Available freight options are coordinated for the destination country without promising an unconfirmed delivery date. |
| Shipment tracking | Tracking information is shared after carrier acceptance when available for the selected route. |
| Customs documentation | Commercial and shipping documents are prepared according to confirmed order and destination details. |
| Written warranty terms | Scope and applicable terms are recorded with the commercial order documentation. |
| Return authorization process | Buyers contact the service team with order records and evidence before any return is arranged. |
| After-sales response | The team reviews order identity, documented issue details and available photos to coordinate the next step. |
The process begins with label verification and a visible-condition review, continues through documented compatibility checks, and finishes with protective packaging, logistics coordination and document preparation. Stockoems combines purchasing communication with engineering-oriented order review so direct users, buyers and maintenance teams can work from the same part-number and evidence record. After shipment, questions are handled through the recorded order and after-sales communication channel.
Look for complete model verification, clear commercial terms, traceable contact information, product-label evidence and a documented process for packaging, shipment and after-sales communication.
Request the complete part number, stated condition, available label photos, warranty terms, shipping method, customs-document scope and return authorization process in writing.
Verify interfaces, connectors, electrical configuration, hardware revision, firmware or software requirements, mounting arrangement and the exact installed-system context.
Common warning signs include shortened model numbers, unclear condition, refusal to provide label evidence, unsupported compatibility claims, guaranteed delivery without route confirmation and missing written warranty or return terms.
Share the complete part number, quantity, destination country and available label photos for an availability, condition, compatibility and shipping review.
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
| 01DGBP-E2CRS | ABB 2CDG120044R0011 | A12-PC-LU ASCEND-12 BASE-12 | C9200L | REG-K/4x230/16 |
| mt3025 POL965.00/MCQ | WS-2 | 1SAP240000R0001 DI524 | FMX-IM-3UR38X | KFD2-CRG2-1.D |
| H160 | GTD-2000Tx | 3-12/S1RY | 81012-00136 | DDMC802-PB |
| EXP-1048 | abb 2cdg110041R0011 | ABB 7B4618G04 | 3300XL 144181-51 | VS2048BN |
| EUW4 11EUW4SA0S | K1241 | 773-10 10dB | 4M320-BA | 71000082 |
| IC694ALG392-FG | LX4D8BD | HWP-D-108 | ABB YSM03-EX | 6ES7322-1BL00-0AA0 |
| 102F | 6300M JL669A JL669-61001 | ABB 2CDG110167R0011 | HES92020 | PL-FD113S |
| KPD-4400 | FP-TC-120 186424A-01 | AAM11 | SKB/C/D62 | CONV0/10A0 |
| XPS-125-1 | SDI-1624 | SXWSBTXXXSXX | 51308307-175 CC-TCNT01 | CP-168U RS-232 |
| PCS45 | SXWDI16XX10001 | MU310A 451731 | ABE7 P16T334 | 140XBP01000 |
| CP-168EL-A V1.1.1 | 03031-0001-0002 | 6321001A | BMXNOR0200H | DA9RP 093914 |
| TS16 | 108-309101-01 | 51453322-001 | ABB 8.230.1M GH Q631 0078 R0111 | LC-203 |
| ADV151-E10 | GJR2242000R1 LR370A-E 9083/031 | SCS E49 | H152 IC15 2071767 V1F | NXG-508N |
| HD3MDIHUS | BZME1-A25-BT | 1860114 | AT-HDVS-200-TX | ABB Sv/S 30.160.1.1 2CDG 110 144 R0011 |
Email: sales6@apterpower.com | WhatsApp: +86 18159889985
