Using Quadrature Counters Technical Note

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Updated: 08/10/2009

Incremental encoders are often used to track movement in applications from cranes and conveyors to motion control and robotics, where control depends upon knowing a precise position, speed, or direction.

This technical note shows you how to use quadrature encoders with Opto 22 SNAP products to determine the positional information you need for your application. The technical note covers configuring and controlling both simple quadrature counters and quadrature counters with an index.

Quadrature encoders used with SNAP products require a SNAP-IDC5Q quadrature input module and a suitable I/O processor. For more information, see the SNAP-IDC5Q data sheet.