DADiSP Controls Functions - Adept Scientific

DADiSP Controls Functions

DADiSP Controls functions

DADiSP Controls includes over 40 standalone functions. The following table is a summary of each function.

 

Analysis and simulation

bode Produce Bode magnitude and phase plots.
nyquist Generate Nyquist Plot.
fstats Calculate frequency response characteristics from Bode plot.
dbode Generate Bode plots for a discrete system.
dnyquist Produce Nyquist plot for a discrete system.
dfstats Calculate frequency response characteristics from discrete Bode plot.
setfunit Set units to be used by frequency response macros.
pzmap Plot pole and zero locations in the complex plane.
rtlocus Generate Root Locus Plot.
pzgrid Overlay a grid of constant natural frequencies and damping ratios.
dpzmap Plot location of the poles and zeros of a discrete system.
drtlocus Generate Root Locus Plot for a discrete system.
dpzgrid Overlay a grid of constant discrete natural frequencies and damping ratios.
cimpulse Calculate impulse response of a continuous system.
cstep Evaluate step response of a continuous system.
cramp Calculate response of a continuous system to ramp input.
csim Calculate response of a continuous system to specified input.
csiminit Calculate response of a continuous system to specified input and initial conditions.
dimpulse Calculate impulse response of a discrete system.
dstep Evaluate step response of a discrete system.
dramp Calculate response of a discrete system to ramp input.
dsim Calculate response of a discrete system to specified input.
dsiminit Calculate response of a discrete system to specified input and initial conditions.
tstats Calculate performance characteristics from continuous or discrete step response plot.

 

Model transformations

connect Produce one composite model from two smaller ones.
cloop Transform open-loop model into its closed-loop equivalent.
cloopf Produce closed-loop transfer fcn for a system with open-loop & feedback dynamics.
delay Model a simple delay in a continuous system.
delay2 Model a delay in a continuous system with a higher order approximation.
c2disc Produce discrete model: take Z-transform with zero order hold of the continuous system.
c2dbil Produce the bilinear discrete equivalent of a continuous system.
c2dback Calculate discrete equivalent via the backward integration method.
c2delayY Produce discrete model: take Z-transform with zero order hold with processing delay.
dcgain Calculate DC gain of a continuous system.
cresolv Produce the resolvant matrix of a continuous system.
d2cont Perform inverse Z-transform with zero order hold to produce the continuous model.
d2cbil Produce inverse of the bilinear transform to convert discrete model to continuous equivalent.
d2cback Transform discrete transfer function to continuous equivalent via the inverse of the backward integration method.

 

Off the shelf controllers

pid Design a proportional plus integral plus derivative controller.
pi Design a proportional plus integral controller.
pd Design a proportional plus derivative controller.
lagleadm Design a lag or lead compensator.
dpid Design a discrete proportional plus integral plus derivative controller.
dpi Design a discrete proportional plus integral controller.
dpd Design a discrete proportional plus derivative controller compensator.
dlagleadm Design the discrete equivalent of a continuous lag or lead.
dsgn2ordm Design a 2nd order continuous system.

 

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