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Siemens 6ES7 331-7KF02-0AB0 PLC Analogue Input Module

Prezzo di listino
€300,00
Prezzo di listino
Prezzo di vendita
€300,00
Siemens 6ES7 331-7KF02-0AB0 PLC Analogue Input Module Siemens 6ES7 331-7KF02-0AB0 PLC Analogue Input ModuleSiemens 6ES7 331-7KF02-0AB0 PLC Analogue Input ModuleSiemens 6ES7 331-7KF02-0AB0 PLC Analogue Input ModuleSiemens 6ES7 331-7KF02-0AB0 PLC Analogue Input Module

Siemens SIMATIC S7-300 SM 331 Analog Input Module, 8 AI, 24V DC — 6ES7331-7KF02-0AB0 — Lot of 2

Isolated multi-signal analog input module with 9/12/14-bit resolution

Overview

This lot is 2 units of the Siemens SIMATIC S7-300 SM 331, part no. 6ES7331-7KF02-0AB0, an isolated analog input module providing 8 analog inputs with selectable 9-, 12-, or 14-bit resolution. It supports a wide range of signal types including voltage, current, thermocouples, and resistance/RTD sensors, with 4 of its 8 channels usable for resistance measurement. The module includes integrated diagnostics and alarm functions, connecting via a single 20-pole front connector, and supports removing/inserting with an active backplane bus.

Key Features

  • Multi-signal input support: Accepts voltage, current, thermocouple, and resistance/RTD sensor inputs in one module.
  • Selectable resolution: 9-, 12-, or 14-bit resolution configurable per application need.
  • Optical isolation: Channels isolated from the backplane bus for reliable signal integrity.
  • Diagnostics and alarm functions: Built-in diagnostic capability and alarm generation for process monitoring.
  • Hot-swappable: Supports removing/inserting the module with an active backplane bus.
  • Reverse polarity protection: Protects the 24V DC load voltage supply circuit.

What's Included

Model Function Qty
SM 331 (6ES7331-7KF02-0AB0) Analog input module, 8 AI, isolated 2

Technical Specifications

Supply voltage: 24V DC (rated), reverse polarity protected.

Input current: From load voltage L+, max. 30mA; from backplane bus 5V DC, max. 50mA.

Power loss: Typ. 1 W.

Number of analog inputs: 8 (4 usable for resistance measurement).

Resolution: 9/12/14 bits.

Voltage input ranges: ±80mV, ±250mV, ±500mV, ±1V, 1-5V, ±2.5V, ±5V, ±10V.

Current input ranges: ±3.2mA, ±10mA, ±20mA, 0/4-20mA.

Thermocouple ranges: Type E, J, K, N.

RTD/resistance ranges: Ni100, Pt100, 0-150Ω, 0-300Ω, 0-600Ω.

Integration time: Parameterizable — 2.5/16.67/20/100 ms.

Max. destruction limits: 20V continuous (75V for max. 1s) on voltage input; 40mA on current input.

Connection: 1x 20-pole front connector (spring contacts or screw contacts, sold separately).

Compatibility & Applications

Part of Siemens' SIMATIC S7-300 SM 331 module family, this analog input module is well suited to industrial automation and process control applications requiring precise analog signal acquisition, including temperature monitoring, pressure and flow measurement, and general instrumentation across manufacturing and process industries.

A1Customer — Industrial Automation Equipment | Tampere, Finland
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