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Technical specifications for 6ES7431-7KF10-0AB0
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Manufacturer:Siemens
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Product Category:PLC Systems
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Spare Part Number:6ES7431-7KF10-0AB0
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Estimated shipping dimensions:2.5×22×29cm
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Weight:0.64 kg
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Tariff Code:8537101190
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Counliy of origin:Germany
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Module designation:SM 431
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Module type:RTD analog input
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Input channels:8 differential inputs
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Supported sensors:Pt100 / Pt200 / Pt500 / Pt1000 / Ni100 / Ni1000
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Resolution:16 bit
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Update rate:25 ms for 8 channels
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Sensor connection:3-wire or 4-wire RTD
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Constant sensor current:Typically 1 mA
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Shielded cable length:Maximum 200 m
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Channel-to-backplane isolation:Yes
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Channel-to-channel isolation:No
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Diagnostics:Internal/external fault indication; diagnostic data readable
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Hardware interrupts:Supported
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External module supply:Not required
Information
Overview
Manuals
Common Applications
Product Precautions
Siemens 6ES7431-7KF10-0AB0 acquires eight differential resistance-temperature channels for an S7-400 station while keeping sensor linearization, channel diagnostics and process-interrupt behavior within the module configuration.
- Eight differential RTD input channels.
- Pt and Ni sensor linearization with 16-bit conversion.
- 25 ms update rate for all eight channels.
- Readable diagnostics and configurable hardware interrupts.
The retained STEP 7 configuration links each channel to its sensor characteristic, wiring method, diagnostic behavior and process-limit response.
Important Notice: Match every RTD type, three- or four-wire circuit and channel range before the module is returned to service.
Siemens 6ES7431-7KF10-0AB0 Manuals & Downloads
Siemens 6ES7431-7KF10-0AB0 Official Module Data Excerpt (PDF)Siemens 6ES7431-7KF10-0AB0 Installation & Commissioning Guide (PDF)
The official excerpt covers the exact SM 431 RTD module data and commissioning pages; the field guide organizes the model-specific wiring, setup, diagnostic and acceptance checks.
Multi-point RTD acquisition
Collects eight Pt or Ni resistance-temperature inputs in one S7-400 slot.
Temperature monitoring
Supports channel-specific measurement configuration and diagnostic evaluation.
Process-limit supervision
Uses configured hardware interrupts for applications that require close monitoring.
Legacy S7-400 maintenance
Restores the recorded SM 431 position while preserving terminal and parameter assignments.
Apply these checks to the exact Siemens 6ES7431-7KF10-0AB0 RTD input position before returning its temperature channels to service.
1
Confirm the complete 6ES7431-7KF10-0AB0 order number and the recorded S7-400 slot.
2
Place the controller and connected temperature circuits in the approved maintenance state.
3
Record every RTD type, three- or four-wire connection and channel assignment before removal.
4
Verify shield routing and keep each field cable within the documented 200 m limit.
5
Restore the 48-pin connector without changing channel polarity or common connections.
6
Load the retained STEP 7 parameter set and compare measuring method and sensor range by channel.
7
Review INTF/EXTF indications and read the module diagnostic record after energization.
8
Functionally compare all eight temperature values and configured interrupt limits before release.
Technical notes
Match 6ES7431-7KF10-0AB0 to the recorded S7-400 slot, 48-pin connector and STEP 7 channel parameters. Preserve every RTD wiring method and release the module only after all eight values, diagnostics and configured interrupts are verified.
FAQ View All FAQ
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How many RTD channels does Siemens 6ES7431-7KF10-0AB0 provide?It provides eight differential analog inputs for resistance-temperature measurement.
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Which sensor families can Siemens 6ES7431-7KF10-0AB0 measure?The documented ranges include Pt100, Pt200, Pt500, Pt1000, Ni100 and Ni1000 resistance thermometers.
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Which wiring methods apply to Siemens 6ES7431-7KF10-0AB0 RTD inputs?The module supports documented three-wire and four-wire resistance-temperature connections.
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What resolution and update rate does Siemens 6ES7431-7KF10-0AB0 use?The module converts at 16-bit resolution and updates all eight channels in 25 ms.
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Does Siemens 6ES7431-7KF10-0AB0 require an external module supply?No external module supply is required for the documented execution.
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How are faults indicated on Siemens 6ES7431-7KF10-0AB0?INTF and EXTF LEDs distinguish internal and external faults, and diagnostic information can be read by the controller.
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Can Siemens 6ES7431-7KF10-0AB0 generate hardware interrupts?Yes. Hardware-interrupt capability is available for configured process monitoring.
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What must be verified after installing Siemens 6ES7431-7KF10-0AB0?Compare every channel value, sensor range, diagnostic state and configured limit response with the retained commissioning record.
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