Step Response Properties and Coefficients
Configure these properties when configuring the controller with the MPC Editor.
NOTE: In the table below, "I" and "O" in the "I/O" column refer to input and output for the MPC block respectively.
A parameter can be classified as:
- I (input only)
- O (output only)
- IO (input and output)
- N/A (neither, set in offline configuration)
Available Properties for Step Response
| Step Response Property | Type | Description | Notes | I/O |
| CVName | String | The name of the associated controlled variable. | None. |
N/A |
| Gain Multiplier | Double | A constant value used to scale the model gain. | Used to scale the model gain without affecting the response shape. |
IO |
| ModelType | String | This is the model type and which has values in the following list: First Order, First Order Integrator, Series First Order, Integrator, Double Integrator, Inverse Response, Double Pole Lead, Second Order Damped, and Two Pole. | Used to identify model type. |
IO |
| K | Double | The K parameter of the model type defined by the Name parameter. | None. |
O |
| Tau | Double | The Tau parameter of the model type defined by the Name parameter, in seconds. | None. |
N/A |
| A | Double | The A parameter of the model type defined by the Name parameter. | None. |
N/A |
| B | Double | The B parameter of the model type defined by the Name parameter. | None. |
N/A |
| C | Double | The C parameter of the model type defined by the Name parameter. | None. |
N/A |
| Zeta | Double | The Zeta parameter of the model type defined by the Name parameter. | None. |
N/A |
| Delay | Double | The process delay parameter of the model in seconds. | None. |
N/A |
| DefaultStepResponseValues | String | A list of indexed coefficients follows starting at 1 and ending at the number given by the Prediction Horizon. These are of type double. Each value is multiplied with the Gain Multiplier before use, and is space separated. | Used to predict plant dynamics in the MPC algorithm. |
O |
| StepResponseValues | String | A list of indexed coefficients follows starting at 1 and ending at the number given by the Prediction Horizon. These are of type double. Each value is multiplied with the Gain Multiplier before use, and is space separated. | Used to predict plant dynamics in the MPC algorithm. |
O |
Available Coefficients for Step Response
| Step Response Coefficients | Type | Description | Notes | I/O |
| CVName | String | The name of the associated controlled variable. | None. |
N/A |
| MappedVariableName | String | The name of the associated manipulated or disturbance variable. | None. |
N/A |
| Gain Multiplier | Double | A constant value used to scale the model gain. | Used to scale the model gain without affecting the response shape. |
IO |
| DefaultStepResponseValues | String | A list of indexed coefficients follows starting at 1 and ending at the number given by the Prediction Horizon. These are of type double. Each value is multiplied with the Gain Multiplier before use, and is space separated. | Used to predict plant dynamics in the MPC algorithm. |
O |
| StepResponseValues | String | A list of indexed coefficients follows starting at 1 and ending at the number given by the Prediction Horizon. These are of type double. Each value is multiplied with the Gain Multiplier before use, and is space separated. | Used to predict plant dynamics in the MPC algorithm. |
O |
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