output only, or by logically relating the reference pulse to the A and B data channels. Thus pulse it is most frequently used in positioning and motion coi:rtrbl applicationsas an electronic starting point of known position from which counting or posi-1 tion tracking becrins In long travel or multiple turns of the encoder, the reference ulse is sometimes
used by the control to initiate an _electronic check on the tot . count received from the encoder. For example, each time a reference pulse IS ceJVed by the control, the total count received from channels A and B should b even multiple of the
encoder's pulses per revolution.