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Siemens SIMATIC S7-300 SM 331 Analog Input Module

Name: Siemens 6ES7331-7KB81-0AB0
Brand: Siemens
SKU: 6ES7331-7KB81-0AB0
Availability: InStock

Siemens SIMATIC S7-300 SM 331 analog input module with 2 AI.

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ManufacturerSiemens

Part number6ES7331-7KB81-0AB0

Part Number 6ES7331-7KB81-0AB0

Manufacturer Siemens

Product Type SIMATIC S7-300 Analog Input Module

Inputs 2 Analog Inputs (AI)

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12-month warranty

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2 Analog Inputs Selectable Resolution (9/12/14 Bit) Supports U/I/TC/Resistance Optically Isolated Expanded Temperature Range Diagnostics and Interrupts

Product description

The Siemens SIMATIC S7-300 SM 331 analog input module (6ES7331-7KB81-0AB0) offers optically isolated inputs for expanded temperature ranges. It features 2 analog inputs with selectable resolution of 9, 12, or 14 bits, capable of handling voltage, current, thermocouple, or resistance signals. The module also supports interrupt and diagnostic functions and connects via a 20-pin interface.

This module is designed for precise measurement of analog process variables in various industrial automation applications, including temperature, pressure, and flow monitoring. It is an integral part of the SIMATIC S7-300 system, widely used in process control, manufacturing, and building automation.

Stanlo Automation, your veteran-owned source for surplus industrial parts, offers the Siemens 6ES7331-7KB81-0AB0. We provide access to reliable components for your automation needs, ensuring operational continuity and efficiency.

Technical specifications

Part Number	6ES7331-7KB81-0AB0
Manufacturer	Siemens
Product Type	SIMATIC S7-300 Analog Input Module
Inputs	2 Analog Inputs (AI)
Resolution	9/12/14 Bit
Signal Types	U/I/Thermocouple/Resistance
Isolation	Optically Isolated
Temperature Range	Expanded
Connection	20-pin

Common applications

Temperature Measurement

Pressure Monitoring

Flow Control

Process Automation

Manufacturing

Building Automation

PLC Systems

Compatible systems

Siemens SIMATIC S7-300 PLC STEP 7 Programming Software Various analog sensors (0-10V, 4-20mA, thermocouples, RTDs)

Also known as

SM 331 Analog Input Siemens S7-300 AI Module 6ES7331 Analog Module

Replaces / compatible with

This module expands the analog input capabilities of the SIMATIC S7-300 PLC system. It's a direct replacement for other SM 331 modules with similar specifications.

Technical note

Expert tip

The optically isolated inputs provide protection against ground loops and common-mode voltages in noisy industrial environments.

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Frequently asked questions

What types of analog signals can the Siemens 6ES7331-7KB81-0AB0 module measure?

The Siemens SM 331 module can measure voltage (U), current (I), thermocouple signals, and resistance (e.g., RTD sensors), offering versatility for various process inputs.