Siemens 6ES7551-1AB01-0AB0 PosInput Module

6ES75511AB010AB0 Positioning and Counter Module – 2-Channel Input for RS-422 Incremental or SSI Absolute Encoders, Includes 2 DI + 2 DQ per Channel, High-Speed Motion Interface for SIMATIC S7-1500

Technical Specifications

• Model: 6ES7551-1AB01-0AB0 Siemens
• Series: SIMATIC S7-1500
• Module Type: TM PosInput – Counter & Position Detection Module
• Supported Encoders:
  • RS-422 Incremental Encoders
  • SSI Absolute Encoders
• Channels: 2 Position/Counter Channels
• Digital Inputs: 2 DI per channel
• Digital Outputs: 2 DQ per channel
• Front Connector Required:
  • 6ES7592-1AM00-0XB0 – Screw Terminal, 40-Pole
  • 6ES7592-1BM00-0XB0 – Push-in Terminal, 40-Pole
• Net Weight: 0.412 kg
• Dimensions (W×H×D): 161.0 × 194.0 × 47.0 mm
• Product Lifecycle: Active
• Country of Origin: Germany

Function & Application

Purpose:
The TM PosInput module provides precise position and count data acquisition for applications involving linear motion, rotational feedback, or pulse-based detection. Designed for S7-1500 systems, it supports high-speed encoder feedback via RS-422 and SSI interfaces.

Typical Applications:

• Axis and position tracking
• Linear or rotary motion feedback
• Machine tool automation
• Robotics and conveyor control systems

Performance & Features

• 2 Encoder Channels. Supports incremental (RS-422) and absolute (SSI) feedback
• 2 DI + 2 DQ per Channel. Enables advanced control and signal handling
• High-Speed Capture. Reliable input for dynamic, high-resolution motion tasks
• Modular S7-1500 Integration. Direct mounting and configuration in TIA Portal
• Flexible Encoder Support. Suitable for both absolute and incremental systems

Recommended Accessories

• 6ES7592-1AM00-0XB0 – Front Connector, Screw Type, 40-Pole
• 6ES7592-1BM00-0XB0 – Front Connector, Push-In Type, 40-Pole

Delivery & Compliance

• Packaging Dimensions: 161.0 × 194.0 × 47.0 mm
• Net Weight: 0.412 kg
• Packaging Quantity: 1 Piece
• Country of Origin: Germany

Product Compliance & Classification

• RoHS Compliance: Since 29.07.2022
• WEEE Take-Back Obligation: Yes
• SCIP Number: 32c02450-f71c-4874-ba59-5a4c6b03c9b4
• REACH Substances:
  • Lead (CAS 7439-92-1) > 0.1%
  • Lead monoxide (CAS 1317-36-8) > 0.1%
  • Silicic acid, lead salt (CAS 11120-22-2) > 0.1%
  • 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one (CAS 71868-10-5) > 0.1%
• Commodity Code: 85389091
• Catalog ID: ST73
• Product Group: 4502
• Group Code: R151
• Product Class: A – Stock item, returnable
• EAN: 4047623411659
• UPC: 195125377356

Key Features & Benefits:

✅ Supports Incremental (RS-422) & Absolute (SSI) Encoders

✅ 2 DI / 2 DQ Per Channel for Flexible I/O Handling

✅ Compact S7-1500 Module Design

✅ Seamless TIA Portal Configuration

✅ Ideal for Robotics, Conveyors & Motion Tasks

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