Signal From Workspace
Loading data from the workspace as a signal.
blockType: SubSystem
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Path in the library: |
Description
Block Signal From Workspace reads the data into the model from the workspace and presents it as a signal. In the parameter Signal the name of the workspace variable containing the imported signal is specified, or any expression defining a matrix or a three-dimensional array.
Ports
Output
#
OUT_1
—
data from the workspace
scalar | vector | the matrix | array
Details
Data loaded from the workspace as a signal. Depending on the loaded data, the output signal can be a scalar, a vector, a matrix, or a three-dimensional array.
If the parameter Signal sets the matrix on ( ), each of columns are treated as a separate channel. The frame size is set by the Samples per frame parameter., . The output is a matrix on , containing consecutive samples from each signal channel. The sampling period at the output is set by the parameter Sample time, , and the frame period at the output – . For convenience, the imported string vector it is considered as a single channel, therefore the dimension of the output frame is equal to on .
| Data types |
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| Complex numbers support |
Yes |
Parameters
Main group
# Signal — the imported signal
Details
The imported signal from the variable workspace, or a valid expression defining the signal.
| Default value |
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| Program usage name |
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| Tunable |
No |
| Evaluatable |
Yes |
# Sample time — sampling period
Details
Sampling period of the output frame , set as a positive number. The sampling period of the output frame is .
| Default value |
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| Program usage name |
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| Tunable |
No |
| Evaluatable |
Yes |
# Samples per frame — samples per output frame
Details
Number of samples per frame in one output data channel, set as a positive integer.
| Default value |
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| Program usage name |
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| Tunable |
No |
| Evaluatable |
Yes |
#
Form output after final data value by —
output values
Setting to zero | Holding final value | Cyclic repetition
Details
Determines the output signal after generating all specified signal samples.
-
If a value is specified for this parameter
Setting to zero, the block generates zero-value output signals for the entire simulation time after generating the last signal frame. -
If a value is specified for this parameter
Holding final value, the block repeats the last frame during the entire simulation time after generating the last frame of the signal. -
If a value is specified for this parameter
Cyclic repetition, the block repeats the signal from the beginning after reaching the last frame of the signal. If the frame size is specified in the parameter Samples per frame, does not evenly divide the length of the input signal into a block Signal From Workspace, then an error will appear.
The block does not extrapolate the imported signal beyond the last sample.
| Values |
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| Default value |
|
| Program usage name |
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| Tunable |
No |
| Evaluatable |
Yes |