High Speed Counter Input; Count Mode - Xinje XC Series User Manual

5-3． High Speed Counter Input
XC series PLC support high speed count function which is independent with the scan cycle. Via
choosing different counter, testing the high speed input signal comes from sensor and rotary
encoder. The highest testing frequency can reach 80 KHz.
5-3-1．Count Mode
XC series HSC function has three count modes: Increment mode, Pulse+Direction mode,
AB-phase mode;
1 Increment Mode
Under this mode, input the pulse signal, the count value increase with every rising edge of pulse
signal;
Pulse+Direction
2
Mode
Under this mode, input the pulse signal and direction signal together. The count value increase or
5 Input Specifications and Wiring Methods