Signal From Workspace
Loads data from the workspace as a signal.
Description
The Signal From Workspace block reads data into the model from the workspace and represents it as a signal. The Signal parameter specifies the name of the workspace variable containing the imported signal, or any expression defining a matrix or 3D array.
Ports
Output
#
OUT_1
—
workspace data
scalar | vector | matrix
Details
Data loaded from the workspace as a signal. Depending on the loaded data, the output signal can be a scalar, vector, matrix or three-dimensional array.
-
If the Signal parameter specifies a matrix to ( ), each of the columns is treated as a separate channel. The frame size is specified by the Samples per frame parameter, . The output is a matrix by , containing consecutive samples from each channel of the signal. The sampling period of the output is set by the parameter Sample time, , and the output frame period is set by . For convenience, the imported line vector is treated as a single channel, so the dimensionality of the output frame is by .
Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, UInt8, UInt16, UInt32, UInt64, Bool
| Data types |
|
| Complex numbers support |
Yes |
Parameters
Main group
# Signal — imported signal
Details
The imported signal from the workspace variable, or the actual expression that defines the signal.
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
Yes |
# Sample time — sampling period
Details
The sampling period of the output frame, , specified as a positive number. The sampling period of the output frame is .
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
Yes |
# Samples per frame — samples per output frame
Details
Samples per frame, as a positive integer indicating the number of samples per frame in one output data channel.
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
Yes |
#
Form output after final data value by —
output values
Setting to zero | Holding final value | Cyclic repetition
Details
Specifies the output signal after all specified signal samples have been generated.
-
If
Setting To Zerois specified for this parameter, the block generates output signals with zero value for the entire simulation time after generating the last signal frame. -
If Holding
Final Valueis specified for this parameter, the block repeats the last frame throughout the simulation time after the last signal frame is generated. -
If
Cyclic Repetitionis specified for this parameter, the block repeats the signal from the beginning after the last frame of the signal is reached. If the frame size specified in the Samples per frame parameter does not evenly divide the length of the input signal to the Signal From Workspace subsystem, an error will be output.
The block does not extrapolate the imported signal beyond the last sample.
| Values |
|
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
Yes |