Signal Specification
Specifies the desired magnitude, sampling time, data type, numeric type, and other signal attributes.
Description
The Signal Specification block allows you to set the attributes of the signal connected to its input and output ports.
If the specified attributes conflict with the attributes specified by the blocks connected to its ports, Engee generates an error when compiling the model. For example, at the beginning of the simulation, if there are no conflicts, the solver removes the Signal Specification block from the compiled model.
You can use the Signal Specification block to ensure that the actual signal attributes match the desired attributes. You can also use it to ensure that the signal attributes are correctly propagated throughout the model. However, if some blocks have undefined attributes for the signals they receive or output, the model does not have enough information to correctly propagate the attributes. In such cases, the Signal Specification block can provide the necessary information.
Usage of the Signal Specification block also helps speed up model compilation when blocks do not have signal attributes.
Ports
Input
Port_1 - input signal
scalar | vector | matrix | array
Input signal as a scalar, vector, matrix or N-dimensional array.
Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, Int128, UInt8, UInt16, UInt32, UInt64, UInt128, Bool, Fixed.
Output
Port_1 - output signal
scalar | vector | matrix | array
Transformed input signal in the form of scalar, vector, matrix or N-dimensional array, attributes of which are defined by the user.
Data types: Float16, Float32, Float64, Int8, Int16, Int32, Int64, Int128, UInt8, UInt16, UInt32, UInt64, UInt128, Bool, Fixed.
Parameters
Data type - output data type
Inherit: auto (by default) | Float16 | Float32 | Float64 | Int8 | Int16 | Int32 | Int64 | Int128 | UInt8 | UInt16 | UInt32 | UInt64 | UInt128 | Bool | Fixed
Required output data type. If the input data type does not match the specified value, the block generates an error.
Block parameter |
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Type |
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Value |
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* By default* |
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Dimensions (-1 for inherited) - values of input and output signals
-1 (by default) | (n,) | (m,n)
Parameters sets the values of input and output signals.
The value () of the parameters indicates a scalar value.
The -1 value of the parameters indicates that the signals inherit dimensions.
The (n,) value of the parameters indicates a vector of width n.
The value (m,n) of the parameters specifies a matrix with m rows and n columns.
Block parameter |
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Type |
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Values |
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By default |
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Sample time (-1 for inherited) - time interval between samples
-1 (by default) | scalar | vector
Set the time interval between samples. To fix the sampling time, set this parameter to -1.
Block parameter |
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Type |
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Values |
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* By default* |
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Signal type - signal complexity
auto (by default) | real | `complex
Select the complexity of input and output signals.
auto - inherit the complexity from the input.
real - real signal is expected.
complex - complex signal is expected.
Block parameter |
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Type |
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Values |
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By default |
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