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 |
Thermocouple measurement requires a supported external reference-junction arrangement; internal cold-junction compensation is not provided.
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Model Number
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6ES7431-1KF10-0AB0
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Analog voltage/current/thermocouple inputs
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8
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Resistance measurement channels
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4
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Nominal conversion resolution
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14 bit
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Resolution with filtering
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16 bit
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Transmitter supply voltage
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24 V DC; needed for two-wire transmitters
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Transmitter-supply current, maximum
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200 mA for eight fully loaded transmitters
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Backplane supply
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5 V DC
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Backplane current, maximum
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600 mA
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Power loss
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3.5 W
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Continuous permissible input voltage
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18 V
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Transient permissible input voltage
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75 V for 1 ms; duty ratio 1:20
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Continuous permissible input current
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40 mA
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Resistance excitation current
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1.67 mA
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Voltage ranges
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1–5 V; ±0.08 / ±0.25 / ±0.5 / ±1 / ±2.5 / ±5 / ±10 V
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Voltage input resistance
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1 MΩ
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Current ranges
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0–20 mA; 4–20 mA
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Current input resistance
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50 Ω
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Resistance ranges
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0–48 / 150 / 300 / 600 / 6,000 Ω
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Usable upper resistance range
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0–5,000 Ω for the 6,000 Ω range
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Resistance input resistance
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1 MΩ
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Thermocouple types
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B, E, J, K, L, N, R, S, T, U
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RTD sensor types
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Ni100, Ni1000; Pt100, Pt200, Pt500, Pt1000, Pt10000
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Shielded cable length
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200 m maximum; 50 m for thermocouples and ≤80 mV signals
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Integration time
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16.7 / 20 ms
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Conversion time per channel
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20.1 / 23.5 ms
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Conversion time for all channels
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161 / 188 ms
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Interference rejection frequencies
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50 / 60 Hz
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Temperature drift
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±0.004%/K
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Operational voltage error
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±0.38% at ±80 mV; ±0.35% on other ranges
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Operational current error
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±0.35%
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Operational resistance/RTD error
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±0.5%
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Basic voltage error at 25 °C
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±0.17% at ±80 mV; ±0.15% on other ranges
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Basic current error at 25 °C
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±0.15%
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Sales
Jim Pei
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Email
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Phone/Whatsapp
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Siemens 6ES7431-1KF10-0AB0 is a universal SM 431 analog input module for the SIMATIC S7-400 system. It supports voltage, current, resistance, resistance thermometer and thermocouple signals. Eight inputs serve voltage, current or thermocouple measurement, while resistance measurements use four channels. The nominal conversion resolution is 14 bits and can reach 16 bits with filtering. A separate load supply is required when powering two-wire transmitters through the module. The selected measurement mode determines the connection scheme.
The 6ES7431-1KF10-0AB0 consolidates several common industrial sensor types within the control station. It is suitable for installations that combine transmitter signals with temperature measurements. Thermocouple reference-junction compensation requires the supported external arrangement. Channel parameter assignment aligns the measuring method with the installed sensor. The module provides separation from the backplane but does not isolate individual channels from each other. Verify sensor wiring and the application configuration before replacement.
Configure suitable channels for voltage, current, resistance, RTD or thermocouple measurement according to the connected sensor.
Use a supported RTD or thermocouple type and apply the required reference-junction arrangement for thermocouples.
Connect supported current transmitters with the correct two-wire or four-wire wiring and supply arrangement.
No. Use the supported external reference arrangement, such as an external Pt100 reference or compensation socket, as required by the configuration.
No. Separation from the backplane does not imply channel-to-channel isolation.
The universal measurement options support different signal types. Check the channel allocation and wiring rules for the chosen combination.
Please send the module label, sensor types, measuring ranges and front-connector wiring details.
We offer 12-month warranty support subject to the agreed conditions and verify product condition before delivery.
We dispatch confirmed available stock promptly after payment and confirm the courier schedule with you.
With 20+ years of industry experience, we serve customers worldwide and have built long-term relationships across the UK, Russia, UAE, India, Venezuela, and more.
Our experienced team provides reliable pre-sales and after-sales support, helping customers select suitable products and resolve purchasing concerns.
We supply leading automation brands covering PLCs, DCS, I/O modules, drives, motors, power supplies, communication modules, and more.
A wide range of products is available from stock, including discontinued, obsolete, and hard-to-find parts, helping reduce sourcing time.
We value long-term cooperation and treat every customer with honesty, respect, responsibility, and care.
From a single replacement part to complete automation projects, we are ready to support your needs and build a long-term partnership.
Our team members have an average of more than 10 years of industry experience. We have worked with customers worldwide, including those from India, Germany, Sweden, Italy, Russia, Venezuela, Israel, and many other countries. Throughout our careers, we have collectively completed over 3,000 orders and established long-term business relationships with customers across nearly 30 countries.
We can often identify a product’s manufacturer, series, configuration, and function from its model number or nameplate photo. We also understand how revisions, firmware, and specifications affect compatibility and whether an alternative model can be used safely.
In Practice: An Indian customer urgently needed a discontinued control module after several suppliers reported no stock. We identified its exact revision and function from the nameplate, checked compatible alternatives, and contacted factory and warehouse channels to locate matching inventory. After installation, the customer confirmed that the module operated correctly and later asked us to source additional spare parts.
Our team treats every inquiry sincerely and answers every question patiently. Even for complex requests, we verify and respond to each detail instead of providing a rushed or uncertain answer.
In Practice: A German customer sent a mixed list of automation products and asked repeated questions about revisions, condition, photos, and delivery. Our team organized the requirements, checked every item, and replied point by point. The customer said our detailed communication made the purchasing decision easier and continued sending us new inquiries.
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