- Differential
For adding, subtracting or differential count. The counter is equipped with a subtracting and an adding input. - Count direction
For adding, subtracting or differential count. The counter is equipped with a count input and a counter advance sense input. - Phase discriminator
For forward/backward counting. The counter is equipped with a 2-channel input. Signals are phase-shifted by 90° to allow counter to recognize count advance sense automatically. The count input can be programmed for single, double or 4-foldevaluation.