ADLINK PCI-8158 - Manual (Page 54)

44 Operation Theory
4.1.7 Compare Table of all motion control types
* Real-time OS included
** DSP or software real-time OS is needed
4.1.8 PCI-8158’s motion controller type
The PCI-8158 is an ASIC based, pulse type motion controller. This
controller is made into three blocks: motion ASIC, PCI card, soft-
ware motion library. Users can access motion ASIC via our soft-
ware motion library under Windows 2000/XP, Linux, and RTX
driver. Our software motion library provides one-stop-function for
controlling motors. All the speed parameters’ calculations are
done via our library.
For example, if you want to perform an one-axis point to point
motion with a trapezoidal speed profile, just fill the target position,
speed, and acceleration time in one function. Then the motor will
run as the profile. It takes no CPU resources because generation
of every control cycle pulse is done by the ASIC. The precision of
target position depends on the closed loop control performance
and mechanical parts of the motor driver, not on motion controller
command because the motion controller is only responsible for
sending correct pulses counts via a desired speed profile. So it is
much easier for programmers, mechanical or electrical engineers
to find out problems and debug.
Software ASIC DSP
Price *Fair Cheap Expensive
Functionality Highest Low Normal
Maintenance Hard Easy Fair
Analog Pulses Network
Price High Low **Normal
Signal Quality
(refer to distance)
Fair Good Best
Maintenance Hard Fair Easy