ADLINK PCI-8164 - Manual (Page 116)

104 Operation Theory
4.1.12 Manual Pulser Mode (PCI-8164 Only)
For manual operation of a device, you may use a manual pulse
such as a rotary encoder. The PCI-8164 can receive input signals
from a pulser and output its corresponding pulses from the OUT
and DIR pins, thereby allowing a simplified external circuit.
This mode is effective when the _8164_pulser_vmove(),
_8164_pulser_pmove(), or _8164_pulser_home_move()
command has been called. To terminate the command use the
_8164_sd_stop() or_8164_emg_stop() command.
The PCI-8164 receives positive and negative pulses (CW/CCW)
or 90-degree phase difference signals (AB phase) from the pulser
at the PA and PB pins. To set the input signal modes of the pulser,
use the _8164_set_pulser_iptmode() function. The 90-
degree phase difference in signals can be set by a multiplication of
1, 2, or 4. If the AB phase input mode is selected, PA and PB sig-
nals should have a 90-degree phase shift, and the position
counter increases when the PA signal is leading the PB signal by
90 degrees.
The following figure shows pulser ratio block diagram.
Related functions:
X
_8164_pulser_vmove(), _8164_pulser_pmove(),
_8164_pulser_home_move(), _8164_set_pulser_iptmode(),
_8164_set_pulser_ratio(), _8164_pulser_r_line2(),
_8164_pulser_r_arc2(), _8164_pulser_a_line2(),
_8164_a_arc2()
Refer to section 6.10