Indexed Encoder

What is it?

Indexed encoders are devices that count shaft rotation and can sense direction. The output of the encoder class is an integer that can count either up or down, and can go negative for reverse direction counting. Quadrature encoders have three digital outputs, an A Channel, a B Channel and in index that are out of phase with each other to allow the FPGA to do direction sensing.

Properties

Channel A Module (Digital)

The digital sidecar on the CRIO that channel A of the encoder is plugged into.

Channel A Port (Digital)

The DIO port on the digital sidecar that channel A of the encoderis plugged into.

Channel B Module (Digital)

The digital sidecar on the CRIO that channel B of the encoder is plugged into.

Channel B Port (Digital)

The DIO Port on the digital sidecar that channel B of the encoder is plugged into.

Index Module (Digital)

The digital sidecar on the CRIO that the index of the encoder is plugged into.

Index Port (Digital)

The DIO Port on the digital sidecar that the index of the encoder is plugged into.

Reverse Direction

Whether or not to reverse the direction considered positive by the encoder.

Distance Per Pulse

Conversion factor to convert pulses to meaninful distance.

PID Source

Whether this encoder is being used for position or velocity PID.

See Also

• Wikipedia