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Siemens SIMATIC S7-300 Analog Input SM 331 Module - 8 AI

Siemens SIMATIC S7-300 SM 331 Analog Input Module with 8 AI.

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ManufacturerSiemens

Part number6ES7331-7PF01-0AB0

Module Type Analog Input SM 331

Channels 8 AI (Isolated)

Resolution 16 (internal 24) bits

Input Signals Resistor (Pt100/200/1000, NI100/200/500/1000, CU10), Thermocouple (GOST)

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8 Isolated Analog Inputs High Resolution (16/24-bit) Supports Resistance Thermometers & Thermocouples 50ms Conversion Time GOST Standard Compatibility

Product description

The Siemens 6ES7331-7PF01-0AB0 is an analog input module for the SIMATIC S7-300 PLC, designed for resistance thermometer and thermocouple measurements. This SM 331 module provides 8 isolated analog inputs with a resolution of 16 (internal 24) bits. It supports 2/3/4-wire connections for resistor inputs (Pt100/200/1000, NI100/200/500/1000, CU10) and thermocouple types according to GOST standards. The module has a conversion time of 50 ms and connects via a 1x 40-pole interface.

This module is ideal for applications requiring precise temperature measurements in industrial environments, such as process temperature monitoring, environmental control, and equipment condition monitoring. Industries benefiting from this module include chemical, petrochemical, food and beverage, and manufacturing.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the 6ES7331-7PF01-0AB0. We ensure you have access to reliable automation components to keep your systems running smoothly and efficiently. Choose Stanlo for your industrial automation needs.

Technical specifications

Module Type	Analog Input SM 331
Channels	8 AI (Isolated)
Resolution	16 (internal 24) bits
Input Signals	Resistor (Pt100/200/1000, NI100/200/500/1000, CU10), Thermocouple (GOST)
Connection	1x 40-pole
Conversion Time	50 ms
Wiring	2/3/4-wire

Common applications

Temperature Monitoring

Process Control

Environmental Control

Equipment Condition Monitoring

Industrial Automation

Compatible systems

SIMATIC S7-300 PLCs

Also known as

SIMATIC S7-300 SM 331 Siemens Analog Input SM 331 6ES73317PF010AB0

Replaces / compatible with

This module is part of the Siemens SIMATIC S7-300 analog input series, expanding temperature measurement capabilities.

Technical note

Expert tip

For accurate temperature readings with Pt100 or NI100 sensors, ensure correct wiring (2, 3, or 4-wire) is selected in the hardware configuration and that lead resistance is compensated.

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Frequently asked questions

What types of resistance thermometers does the Siemens 6ES7331-7PF01-0AB0 module support?

The Siemens 6ES7331-7PF01-0AB0 module supports various resistance thermometers including Pt100, Pt200, Pt1000, NI100, NI200, NI500, NI1000, and CU10, configurable for 2, 3, or 4-wire connections.