Operation Theorem
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39
90° phase difference signals Input Mode(AB phase Mode)
In this mode, the EA signal is 90°
phase leading or lagging in comparison with
EB signal. Where “lead” or “lag' of phase difference between two signals is
caused by the turning direction of motors. The up/down counter counts up
when the phase of EA signal leads the phase of EB signal.
The following diagram shows the waveform.
pulse and direction input(Pulse/DIR)
In this mode, the high / low status of EB decides the counter value to increase
or decrease (Direction), whereas EA decide the count number (Pulse).
4.4.2
Position Counter Value Capture (Latch)
The EZ (index signal) of each pulse input channel doesn't affect counter
value. It can capture (latch) current counter value by proper setting, and
generates an interrupt signal when receiving a rising edge. The counter value
capture function is very useful to sensing position of a moving object.
Related functions:
_8136_P_Initial() : please refer to section 5.2 _8136_P_Set_Input_Type(),
_8136_P_Read(), _8136_P_Clear(), _8136_P_Set_Index_Latch(),
_8136_P_Read_Index(), _8136_P_Read_Latch_Value(): please refer to
section 5.8
EA
EB
Negative Direction
EA
EB
EA
EB
Negative Direction
Summary of Contents for PCI-8136M
Page 1: ...PCI 8136M 6 Axis Motion Controller Card User s Guide ...
Page 2: ......
