CD Vertical Concatenation VI
- Updated2023-03-14
- 9 minute(s) read
CD Vertical Concatenation VI
Owning Palette: Model Interconnection VIs
Requires: Control Design and Simulation Module
Concatenates two linear models such that the Model Out is an array that contains these models as rows. The number of outputs ofModel Out equals the number of outputs from Model 1 plus the number of outputs from Model 2. The system models either must be continuous-time models or must have the same sampling time if they are discrete-time models. Wire data to the Model 1 and Model 2 inputs to determine the polymorphic instance to use or manually select the instance.
CD Vertical Concatenation (State-Space and State-Space)

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Model 1 specifies the first model this VI uses to create the Model Out. |
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Model 2 specifies the second model this VI uses to create the Model Out. |
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
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Model Out returns the model this VI produces. When the two input models are not of the same model type, the following model hierarchy determines the model type of the resulting model: state-space>transfer function>zero-pole-gain. For example, if one input is a state-space model and the other is a zero-pole-gain model, the resulting model is a state-space model. To access and modify the data in the model, use the Model Information VIs. |
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error out contains error information. This output provides standard error out functionality. |
CD Vertical Concatenation (State-Space and Transfer Function)

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Model 1 specifies the first model this VI uses to create the Model Out. |
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Model 2 specifies the second model this VI uses to create the Model Out. |
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
![]() |
Model Out returns the model this VI produces. When the two input models are not of the same model type, the following model hierarchy determines the model type of the resulting model: state-space>transfer function>zero-pole-gain. For example, if one input is a state-space model and the other is a zero-pole-gain model, the resulting model is a state-space model. To access and modify the data in the model, use the Model Information VIs. |
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error out contains error information. This output provides standard error out functionality. |
CD Vertical Concatenation (State-Space and Zero-Pole-Gain)

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Model 1 specifies the first model this VI uses to create the Model Out. |
![]() |
Model 2 specifies the second model this VI uses to create the Model Out. |
![]() |
error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
![]() |
Model Out returns the model this VI produces. When the two input models are not of the same model type, the following model hierarchy determines the model type of the resulting model: state-space>transfer function>zero-pole-gain. For example, if one input is a state-space model and the other is a zero-pole-gain model, the resulting model is a state-space model. To access and modify the data in the model, use the Model Information VIs. |
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error out contains error information. This output provides standard error out functionality. |
CD Vertical Concatenation (Transfer Function and Transfer Function)

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Model 1 specifies the first model this VI uses to create the Model Out. |
![]() |
Model 2 specifies the second model this VI uses to create the Model Out. |
![]() |
error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
![]() |
Model Out returns the model this VI produces. When the two input models are not of the same model type, the following model hierarchy determines the model type of the resulting model: state-space>transfer function>zero-pole-gain. For example, if one input is a state-space model and the other is a zero-pole-gain model, the resulting model is a state-space model. To access and modify the data in the model, use the Model Information VIs. |
![]() |
error out contains error information. This output provides standard error out functionality. |
CD Vertical Concatenation (Transfer Function and State-Space)

![]() |
Model 1 specifies the first model this VI uses to create the Model Out. |
![]() |
Model 2 specifies the second model this VI uses to create the Model Out. |
![]() |
error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
![]() |
Model Out returns the model this VI produces. When the two input models are not of the same model type, the following model hierarchy determines the model type of the resulting model: state-space>transfer function>zero-pole-gain. For example, if one input is a state-space model and the other is a zero-pole-gain model, the resulting model is a state-space model. To access and modify the data in the model, use the Model Information VIs. |
![]() |
error out contains error information. This output provides standard error out functionality. |
CD Vertical Concatenation (Transfer Function and Zero-Pole-Gain)

![]() |
Model 1 specifies the first model this VI uses to create the Model Out. |
![]() |
Model 2 specifies the second model this VI uses to create the Model Out. |
![]() |
error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
![]() |
Model Out returns the model this VI produces. When the two input models are not of the same model type, the following model hierarchy determines the model type of the resulting model: state-space>transfer function>zero-pole-gain. For example, if one input is a state-space model and the other is a zero-pole-gain model, the resulting model is a state-space model. To access and modify the data in the model, use the Model Information VIs. |
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error out contains error information. This output provides standard error out functionality. |
CD Vertical Concatenation (Zero-Pole-Gain and Zero-Pole-Gain)

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Model 1 specifies the first model this VI uses to create the Model Out. |
![]() |
Model 2 specifies the second model this VI uses to create the Model Out. |
![]() |
error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
![]() |
Model Out returns the model this VI produces. When the two input models are not of the same model type, the following model hierarchy determines the model type of the resulting model: state-space>transfer function>zero-pole-gain. For example, if one input is a state-space model and the other is a zero-pole-gain model, the resulting model is a state-space model. To access and modify the data in the model, use the Model Information VIs. |
![]() |
error out contains error information. This output provides standard error out functionality. |
CD Vertical Concatenation (Zero-Pole-Gain and State-Space)

![]() |
Model 1 specifies the first model this VI uses to create the Model Out. |
![]() |
Model 2 specifies the second model this VI uses to create the Model Out. |
![]() |
error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
![]() |
Model Out returns the model this VI produces. When the two input models are not of the same model type, the following model hierarchy determines the model type of the resulting model: state-space>transfer function>zero-pole-gain. For example, if one input is a state-space model and the other is a zero-pole-gain model, the resulting model is a state-space model. To access and modify the data in the model, use the Model Information VIs. |
![]() |
error out contains error information. This output provides standard error out functionality. |
CD Vertical Concatenation (Zero-Pole-Gain and Transfer Function)

![]() |
Model 1 specifies the first model this VI uses to create the Model Out. |
![]() |
Model 2 specifies the second model this VI uses to create the Model Out. |
![]() |
error in describes error conditions that occur before this node runs. This input provides standard error in functionality. |
![]() |
Model Out returns the model this VI produces. When the two input models are not of the same model type, the following model hierarchy determines the model type of the resulting model: state-space>transfer function>zero-pole-gain. For example, if one input is a state-space model and the other is a zero-pole-gain model, the resulting model is a state-space model. To access and modify the data in the model, use the Model Information VIs. |
![]() |
error out contains error information. This output provides standard error out functionality. |
CD Vertical Concatenation Details
This VI might convert one or both input models to different forms before connecting the models. Refer to the LabVIEW Control Design User Manual for more information about appending models.
This VI supports delays. This VI transfers the delay information from the input models to the augmented model. Refer to the LabVIEW Control Design User Manual for more information about delays.



