Simulink Control Design™ - MathWorks

getBlockRateConversion

Get rate conversion settings for tuned block in slTuner interface

When you use systune with Simulink, tuning is performed at the sampling rate specified

by the Ts property of the slTuner interface. When you use writeBlockValue to write

tuned parameters back to the Simulink model, each tuned block value is automatically

converted from the sample time used for tuning, to the sample time of the Simulink block.

The rate conversion method associated with each tuned block specifies how this

resampling operation should be performed. Use getBlockRateConversion to query the

block conversion rate and use setBlockRateConversion to modify it.

Syntax

method = getBlockRateConversion(st,blk)

[method,pwf] = getBlockRateConversion(st,blk)

[IF,DF] = getBlockRateConversion(st,blk)

Description

method = getBlockRateConversion(st,blk) returns the rate conversion method

associated with the tuned block on page 15-401, blk.

[method,pwf] = getBlockRateConversion(st,blk) also returns the prewarp

frequency. When method is not 'tustin', the prewarp frequency is always 0.

[IF,DF] = getBlockRateConversion(st,blk) returns the discretization methods

for the integrator and derivative filter terms when blk is a PID Controller block.

Examples

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