ADLINK Technology PCI-8154, User Manual

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42 Operation Theory
motion control separates all system integration problems into 4
parts: Motor driver’s performance, ASIC outputting profile, ven-
dor’s software parameters to the ASIC, and users’ command to
vendors’ software. It makes motion controller co-operated more
smoothly between devices.
4.1.7 Compare Table of all motion control types
4.1.8 PCI-8154 motion controller type
The PCI-8154 is ASIC based, pulse type motion controller made
into three blocks: motion ASIC, PCI card, software motion library.
The motion ASIC can be accessed via our software motion libray
under many kinds of Windows NT/2000/XP, Linux, and RTX driver.
Our software motion library provides one-stop-function for control-
ling motors. All the speed parameter calculations are done via our
library.
For example, to perform a one-axis point to point moition with a
trapezoidal speed profile, only 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 every control cycle
pulse generation is done by the ASIC. The precision of target posi-
tion depends on motor drivers’ closed loop control performance
and mechnical parts, not on motion controller’s command because
the motion controller is only responsible for sending correct pulses
counts via a desired speed profile. So it is much easier for pro-
grammers, mechnical or electrical engineers to find out problems.
Software ASIC DSP
Price Fair Cheap Expensive
Functionality Highest Low Normal
Maintenance Hard Easy Fair
Analog Pulses Network
Price High Low Normal
Signal Quality Fair Good Reliable
Maintenance Hard Easy Easy