Siemens 6ES7 432-1HF00-0AB0
€100.00
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Product description
Siemens 6ES7 431-1KF20-0AB0 is an SM 431 analog input module from the SIMATIC S7-400 family. It is used when an installed S7-400 station must acquire analog values from field devices, transmitters or resistance sensors and the module needs to be replaced by its exact Siemens order number. The Siemens data sheet identifies it as an isolated 8-AI module with 14-bit resolution and a cycle time of 0.416 ms. Documented voltage ranges include 1 to 5 V, -1 to +1 V and -10 to +10 V; current ranges include -20 to +20 mA and 4 to 20 mA. Resistance can also be measured from 0 to 600 ohms. For service and engineering comparison, note that the L+ load supply of 24-V-DC is required only for powering 2-wire transmitters, while the module draws a maximum of 1 000 mA from the 5-V backplane bus. Electrical isolation is provided between the channels and backplane bus and between the channels and load voltage, but not between individual channels. With dimensions of 25 x 290 x 210 mm, a weight of approx. 500 g, shielded cable lengths up to 200 m and typical power dissipation of 4.9 W, Siemens 6ES7 431-1KF20-0AB0 can be distinguished from digital S7-400 inputs, output modules and other SM 431 versions. Its documented input resistances, error limits and connection methods support technical assessment without implying universal interchangeability with other SM-431 modules. Siemens 6ES7 431-1KF20-0AB0 is particularly relevant when measurement ranges, channel count, connection method and module format must match the existing hardware configuration exactly.
Specifications
| Manufacturer | Siemens |
|---|---|
| Product series | SIMATIC S7-400 / SM 431 |
| Manufacturer/Order/Identification number | 6ES7 431-1KF20-0AB0 |
| Device type | SM 431 analog input module |
| Input channels | 8 analog inputs for voltage or current measurement; 4 inputs for resistance measurement |
| Resolution | 14 bit including sign and overrange |
| Cycle time | 0.416 ms |
| Voltage ranges | 1 to 5 V, -1 to +1 V and -10 to +10 V |
| Current ranges | -20 to +20 mA and 4 to 20 mA |
| Resistance range | 0 to 600 ohms |
| Load voltage | L+ 24 V DC, required only to power 2-wire transmitters |
| Current consumption | Max. 1 000 mA from the 5 V DC backplane bus; max. 200 mA from L+ without load |
| Power dissipation | Typically 4.9 W |
| Cable length | Maximum shielded length 200 m |
| Electrical isolation | Between channels and backplane bus and between channels and load voltage; not between individual channels |
| Transmitter connections | Voltage measurement, 2-/4-wire current transmitters and 2-/3-/4-wire resistance measurement |
| Dimensions | 25 x 290 x 210 mm |
| Weight | Approx. 500 g |
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Which measurements does Siemens 6ES7 431-1KF20-0AB0 support?
The Siemens data sheet specifies voltage, current and resistance measurement; thermocouples and resistance thermometers are not specified for this version.
How many channels does SM 431 6ES7 431-1KF20-0AB0 provide?
Eight analog inputs are available for voltage and current measurement; Siemens specifies four inputs for resistance measurement.
Is there a guarantee?
Yes, we provide a 14-day functional guarantee for used items. This means the component must be operational when received.
Please note that the guarantee only applies when the warranty seal is undamaged.
If a defect occurs within 14 calendar days, please contact us in writing. Subject to availability, we will provide a replacement or refund the full purchase price after return.
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Because we sell exclusively to business customers (B2B), there is no general right of return and no consumer right of withdrawal.
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