Pulse decoder

The Pulse decoder I/O decodes the two signals from a quadrature encoder to a pulse count/position. A quadrature encoder (or incremental rotary encoder or relative rotary encoder) has two outputs which are 90 degrees out of phase. That makes it possible to determine both position and direction of movement. The output of the Pulse decoder can be shown in a graph and in a table

Pulse decoder example

Properties and actions

To control the behavior of the Pulse decoder I/O, several properties are available. These can be accessed through a popup menu which is shown when the I/O is right clicked.

Voltage

The Voltage property sets the high and low level for signal edge detection. Several standard values are available that set both levels at once. A user defined setting is available to set both levels individually.