Home > Products > SIEMENS > SIMATIC S7 Series
Minimum Order Quantity |
1 Piece |
Price |
Contact for Jim |
Packaging Details |
Original new Factory Sealed |
Delivery Time |
3–7 Days |
Payment Terms |
T/T |
Shipping Method |
DHL / FedEx / UPS / TNT |
Supply Ability |
In stock |
This model is dedicated to resistance/RTD measurement. Only verified specifications are listed; unrelated voltage/current input ranges are excluded.
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Model Number
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6ES7431-7KF10-0AB0
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Analog resistance/RTD channels
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8
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Conversion resolution including sign
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16 bit
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Backplane supply
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5 V DC
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Backplane current, maximum
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650 mA
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Power loss, typical
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3.3 W
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Continuous permissible input voltage
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35 V
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Transient permissible input voltage
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75 V for 1 s; duty ratio 1:20
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Resistance excitation current
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1 mA
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RTD sensor families
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Ni100, Ni1000, Pt100, Pt200, Pt500, Pt1000
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RTD input resistance
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>10,000 Ω
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Resistance wiring
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Three-wire or four-wire
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Shielded sensor cable length
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200 m maximum
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Conversion-time selections
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8 / 23 / 25 ms
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Integration time at 50 Hz rejection
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20 ms
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Interference-rejection settings
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None / 60 Hz / 50 Hz
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Operational RTD error
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±1 °C
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Basic RTD error at 25 °C
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±0.2 °C
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Backplane isolation test voltage
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500 V DC
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Channel-to-channel isolation
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Not provided
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Backplane separation
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Electrically isolated
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Pt100 linearity error
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±0.2 °C with four-wire; ±0.3 °C with three-wire
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Pt200 linearity error
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±0.2 °C with three-wire or four-wire
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Pt500 linearity error
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±0.1 °C with three-wire or four-wire
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Pt1000 linearity error
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±0.1 °C with three-wire or four-wire
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Ni100 linearity error
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±0.1 °C with four-wire; ±0.2 °C with three-wire
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Ni1000 linearity error
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±0.1 °C with three-wire or four-wire
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Input crosstalk rejection, minimum
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70 dB
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Measured-value smoothing settings
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4 configurable levels
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Additional wire-break monitoring time
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110 / 4 ms, depending on configuration
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Sales
Jim Pei
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Email
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Phone/Whatsapp
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Siemens 6ES7431-7KF10-0AB0 is the SM 431 resistance and RTD analog input module for SIMATIC S7-400. It provides eight measurement channels with 16-bit resolution. Supported platinum and nickel resistance thermometers connect through the specified sensor wiring. The module supplies a defined excitation current for resistance measurement. It supports diagnostic and limit-value interrupt functions. This RTD version is not a voltage, current or thermocouple input module.
The 6ES7431-7KF10-0AB0 is intended for resistance-based temperature acquisition in an S7-400 installation. Sensor selection and wire configuration must agree with the channel parameters. The controller can receive diagnostic information and react to configured limits. Electrical separation from the backplane helps define the system reference arrangement. Individual input channels share the measurement reference structure. Review the sensor characteristic and connection diagram when selecting a replacement.
Read the supported platinum or nickel resistance thermometers through the configured RTD characteristic.
Connect resistive sensors with the prescribed three-wire or four-wire arrangement to limit lead-related measurement errors.
Use configured limit and diagnostic interrupts to notify the controller application of relevant measurement conditions.
No. This version is designed for resistance and RTD signals rather than thermocouple, voltage or current input.
The module is isolated from the backplane; the individual channels are not isolated from each other.
Use a supported three-wire or four-wire connection and set the matching channel parameters.
Yes. The supported limit-value and hardware interrupt functions must be configured in the controller project.
Identification and condition are checked before dispatch. Warranty support is available for 12 months under the agreed terms.
We arrange prompt dispatch of confirmed available stock and provide the shipment details.
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