Siemens 6ES7331-7PF01-0AB0 , Analog Input Module

Product Description

SIMATIC S7-300 Analog Input Module – SM 331

The 6ES7331-7PF01-0AB0 is an analog input module from the Siemens SIMATIC S7-300 series, designed to acquire precise analog signals in industrial automation systems. This SM 331 module supports a variety of analog input types and provides flexible configuration for diverse applications.

Key Features:

• 8 Analog Inputs

• Input Types: Voltage and Current (±10V, 0–10V, 0–20mA, 4–20mA)

• Resolution: 12/16-bit (configurable)

• Galvanic Isolation: Between channels and backplane bus

• Diagnostics Functions: Supported (module and channel level)

• Module Width: 40 mm

• Connection: Via 40-pin front connector

Technical Specifications:

• Number of Inputs: 8 (single-ended or differential)

• Input Range: Configurable per channel

• Accuracy: ±0.3% to ±1% depending on range

• Sampling Time: Adjustable per channel group

• Power Supply: From backplane bus

• Operating Temperature: 0 to +60 °C

Applications:

Ideal for capturing analog process values such as:

• Pressure

• Temperature

• Flow

• Level

• Voltage/Current from transducers