Product Title

Siemens 6ES7331-7KF02-0AB0 SIMATIC S7-300 PLC Series Analog Input Module AI 8x12-bit

Product Overview

Siemens 6ES7331-7KF02-0AB0 is SM331 analog input module for SIMATIC S7-300 PLC system. It is an isolated 8-channel analog input module with adjustable resolution up to 12-bit. It collects multiple types of analog signals including voltage, current, thermal resistance and thermocouple signals from field sensors, and converts analog signals into digital data for S7-300 CPU processing. It supports group-wise range setting via range cards, widely used for process monitoring in industrial automation.

Core Advantages & Key Features

• ✅ 8 analog input channels, resolution optional 9/12/14 bits
• ✅ Galvanic isolation between backplane bus and field side
• ✅ Multi-signal measurement: voltage, current, thermocouple, resistance thermometer
• ✅ 4 channel groups, flexible range setting by range card
• ✅ Built-in diagnostic function and limit monitoring, support alarm interrupt
• ✅ 20-pole front connector, hot-swappable under active backplane bus
• ✅ Reverse polarity protection, stable performance for process industry
• ✅ Original Siemens spare part, widely used for S7-300 system maintenance

Technical Parameters

Application Industries & Typical Scenarios

Applicable Industries

• ✅ Water Treatment
• ✅ Chemical Industry
• ✅ Power Plant
• ✅ Oil & Gas
• ✅ Packaging Machinery
• ✅ HVAC System
• ✅ Food & Beverage
• ✅ General Process Automation

Packing & Logistics Reference

• Net weight: 0.25 kg / pc
• Single carton gross weight: 0.30 kg / pc
• Original brand new, individual export carton, 12-month manufacturer warranty.