Piezo • Nano • Positioning Universal Command Set SavesDevelopment Time With GCS the development ofcustom application programs issimplified, because the com-mands for all supported de-
vices are identical in syntax
and function. The orientation
phase normally required can be
skipped completely. Through
the use of the GCS commandset with its convenient func-tions, the application develop-
ment process is significantly
accelerated. At the same time,
the probability of error is great-
ly reduced.The GCS commands are avail-able at the controller terminal, >
One Command Set for All Systems: Maximum System Compatibility
For uniform operation of nano-and micropositioning systems,
the universal PI General
Command Set (GCS) is used.
This command set is supported
by all new PI piezo and
motor controllers including hexapod
and hybrid-drive systems. WithGCS, operation is independentof the hardware used, so that
several
positioning systems
can be controlled together, or
new systems can be introduced
with a minimum of program-
ming effort. in macros and in the form of a universal driver set for be tuned fully automaticallywith the Autotune option. With
it, the system dynamics are
analyzed and optimized with
progressive approximation
algorithms. This incomparably
simple method provides excel-
lent results in minimal time.With InputShaping LabVIEW (VIs), Windows dynam Optimization of SystemDynamics -ic link libraries (DLL) and COM
objects (see page 6).Controllers whose firmware isnot based on GCS, are integrat-
ed with the help of an addition-al software layer. This is donein a completely transparent
manner, so that these con-
trollers also integrate smoothly
into GCS software. Using the
GCS DLLs and COM objects
provided, or the GCS LabVIEW
driver set, such controllershave been fully integrated intothe PI graphical interface soft-
ware and in customer-devel-
oped applications as well. For optimal system behavior,the servo-control parameters
can be adjusted depending on
the load and desired dynamics.The effects of adjustment ofrelevant parameters, such as P-I-D terms, notch filter fre-
quencies and slew rate limit are
displayed graphically in easy-
to-understand diagrams.
In addition to manual optimiza-tion, the system behavior can >
® and DDL,additional algorithms are avail-
able to improve the dynamic
behavior of piezo positioning
systems (see page 7). >
GCS-compatible Controllers Micropositioning:C-663, C-843, C-843.PM, C-848, C-862, C-865, C-866, C-880, C-702 Nanopositioning: E-516, E-621, E-625, E-665, E-710, E-725, E-753, E-755, E-761, C-702All Hexapod Controllers for:F-206, M-850, M-840, M-824 Supported Operating Systems Microsoft Windows XPMicrosoft Windows 2000
Microsoft Vista
Linux (on request) The intersection demonstrates the uniform implementation of identical functions indifferent PI controllers Step response of a controlled micropositioning stage with optimized and non-optimized
dynamic parameters 3