Memory
The Memory block holds and delays its input by one major timestep. This version supports variable-size signals and discrete sample times.
Library
MATLAB Command Line
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qc_open_library('quarc_library/Discrete')Description
The Memory block holds and delays its input by one major timestep. The QUARC version of the block acts like both the
MATLAB Command Line
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qc_open_matlab_help('memory');MATLAB Command Line
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doc('UnitDelay');To set the initial conditions for a bus signal, either use a scalar for the Initial condition parameter, which will initialize all the bus elements to the same value, or use a MATLAB structure which mirrors the bus signal in the order of the fields, the names of the fields, and the data types of the fields.
Helpful Hints
Variable-size signals
When using the Memory block with variable-size signals in subsystems, make sure any
MATLAB Command Line
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doc ActionPort;MATLAB Command Line
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doc EnableMATLAB Command Line
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doc TriggerInput Ports
The input signal to be delayed.
Output Ports
The output is the delayed signal.
Data Type Support
This block accepts the built-in Simulink data types, as well as bus signals and variable-size signals. See Using Bus Objects with QUARC for more information on bus signals. See Variable-Size Signals for more information on variable-size signals.
Parameters and Dialog Box
Initial Condition
Specifies the initial value of the output.
Sample Time
The sample time of the block. A sample time of 0 indicates that the block will be treated as a continuous time block. A positive sample time indicates that the block is a discrete time block with the given sample time.
A sample time of -1 indicates that the block inherits its sample time. The default sample time is set to -1 to inherit the sample time.
To use the fundamental sampling time of the model, set the sample time to qc_get_step_size, which is a QUARC function that returns the fundamental sampling time of the model.
Targets
|
Target Name |
Compatible* |
Model Referencing |
Comments |
|---|---|---|---|
|
Yes |
Yes |
||
|
Yes |
Yes |
||
|
Yes |
Yes |
||
|
Yes |
Yes |
||
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Yes |
Yes |
||
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Yes |
Yes |
||
|
Yes |
Yes |
||
|
Yes |
Yes |
||
|
Yes |
Yes |
||
|
Yes |
Yes |
||
|
Yes |
Yes |
||
|
Yes |
Yes |
||
|
Yes |
Yes |
||
|
Yes |
Yes |
Last fully supported in QUARC 2018. |
|
|
Rapid Simulation (RSIM) Target |
Yes |
Yes |
|
|
S-Function Target |
No |
N/A |
Old technology. Use model referencing instead. |
|
Normal simulation |
Yes |
Yes |
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