Rockwell-automation 1794-ID2 U.MNL INCREMENTAL ENCODER User Manual Page 14

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1–2 Overview of the Incremental Encoder Module
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The incremental encoder module performs high-speed scaling
calculation operations for various industrial applications. The
module interfaces with a FLEX family adapter which then
communicates with a programmable controller processor that has
block-transfer capability and external I/O devices.
The adapter/power supply transfers data to the module (block
transfer write) and from the module (block transfer read) using BTW
and BTR instructions in your ladder diagram program. These
instructions let the adapter read input values and status from the
module, and let you write output values and configure the module’s
mode of operation. The following illustration describes the
communication process.
What the Incremental
Encoder Module Does
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