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Allen-Bradley Hardware Product

Multi-turn Magnetic Absolute Encoders

Our Bulletin 842A Multi-turn Magnetic Encoder is a 24-bit absolute multi-turn shaft encoder. It provides up to 8192 pulses per turn or a maximum of 8192 turns. It uses a technology called Synchronous Serial Interface (SSI) to provide 24-bit resolution over just 5 wires. The SSI output from the 842A encoder can be interfaced in several different ways.

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Bulletin 842A Multi-Turn Magnetic Encoders
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  • Specifications
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Overview

  • Reduced wiring cost and complexity
  • Noise immunity achieved via differential communication format
  • Simplified startup
  • Choice of gray code or natural binary formats

Typical applications for Bulletin 842A Multi-turn Magnetic Encoders include:

  • Steel mills
  • Overhead cranes
  • Punch press
  • Transfer lines
  • Oil rigs
  • Wind mills
  • Machine tools
  • Packaging

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Specifications

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842A Absolute Encoders Installation Instructions

Certifications

CE Marked

Looking for Additional Information?

To find additional product information including CAD drawing files, 3D models and more use our Product Catalog.

Product Catalog

Documentation

Resource Publication Number Language
842A Absolute Encoders Installation Instructions 842A-IN001
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