SIEMENS 6ES7431-7KF00-0AB0 Analog Input Module

Industrial automation systems

Process control

Measurement of temperature, voltage, and current

Data acquisition in PLC-based systems

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Product Name: Siemens 6ES7431-7KF00-0AB0
Type: Analog Input Module
Series: SIMATIC S7-400
Model: SM 431

8 analog inputs (AI)

16-bit resolution

Input types: Voltage (U), Current (I), Thermocouple (TC)

Electrically isolated inputs

Diagnostics and alarm functions

Conversion time: 20 ms

Input voltage limit: Max. 35 V continuous, 75 V short-term

Input current limit: Max. 32 mA

Supported thermocouple types: B, E, J, K, L, N, R, S, T, U

Internal and external temperature compensation

Characteristic curve linearization (parameterizable)

Cable length: Max. 200 m (shielded)

Error rate: ±0.3% for voltage, ±0.5% for current

Dimensions: 25 mm (W) x 290 mm (H) x 210 mm (D)

Weight: Approx. 650 g

Power loss: Approx. 4.6 W

Supply: 5 V DC, max. 1200 mA (via backplane bus)

Potential isolation: Internal/external and per channel

EMC and REACH compliant