Siemens 6ES7331-7NF10-0AB0 Analog Input Module

The Siemens 6ES7-331-7NF10-0AB0 SM 331 provides 8-channel isolated analog input with high resolution and flexible signal support. Perfect for voltage or current input tasks, this module ensures precision data capture in process and factory automation systems.

Technical Specifications

Model: 6ES7331-7NF10-0AB0 Siemens
Series: SIMATIC S7-300
Module Type: Analog Input Module SM 331
Number of Inputs: 8 AI
Input Types: ±5 V, ±10 V, 1–5 V, ±20 mA, 0–20 mA, 4–20 mA
Resolution: 16-bit
Operation Modes:

• 4-channel mode: 10 ms
• 8-channel mode: 23–95 ms
  Isolation: Yes – electrically isolated
  Common Mode Voltage: Max. 60 V (single-rooting)
  Connector Type: 1 × 40-pole front connector

Lifecycle Status: PM400 – Announced for phase-out
Discontinuation Date: 01.10.2023

Function & Application

• Purpose: Designed for precise analog signal acquisition in industrial automation environments using SIMATIC S7-300 systems.
• Typical Applications:
  • Machine automation and motion control
  • Temperature or pressure sensor integration
  • Voltage/current loop signal conditioning
  • Industrial process monitoring with PLC analog inputs

Recommended Accessories

• 6ES7392-1AM00-0AA0 – 40-Pole Screw-Type Front Connector
• 6ES7392-1BM01-0AA0 – 40-Pole Spring-Loaded Front Connector

Delivery & Compliance

• Packaging Dimensions: 12.80 × 15.20 × 5.20 cm
• Net Weight: 0.326 kg
• Packaging Quantity: 1 Piece
• Country of Origin: Germany
• Estimated Dispatch Time: 1 Working Day

Product Compliance & Classification

• RoHS Compliance: Since 31.03.2008
• WEEE Take-Back Obligation: Yes
• SCIP Number: a240d72b-bb87-4a7c-a783-ff883e99f6a3
• REACH Substances:
  • Lead (CAS 7439-92-1) > 0.1%
  • Lead monoxide (CAS 1317-36-8) > 0.1%
  • 2,2′,6,6′-tetrabromo (CAS 79-94-7) > 0.1%
  • 6,6′-di-tert-butyl-2,2′-methylenedi-p-cresol > 0.1%
• Commodity Code: 85389091
• Catalog ID: ST73
• Product Group: 2288
• Group Code: R151
• Product Class: A – Stock item, returnable
• EAN: 4019169350716
• UPC: 662643177985

Key Features & Benefits:

✅ 8 Analog Inputs. Supports voltage and current signal types.

✅ 16-Bit Resolution. High accuracy for detailed measurements.

✅ Fast Sampling. Up to 10 ms per 4 channels.

✅ Isolated Design. Withstands up to 60 V common-mode.

✅ S7-300 Ready. Seamless plug-in compatibility with SIMATIC backplanes.

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