Building a Process Model-Compiling the Model

让我们思考用户如何正确使用变换工具。在本例中思考下图所示。这个例子显示蓝点经过分段线性逼近后形成的蓝线绿点单调增加（函数）测量值。红色矩形内的表是用于生成近似的变换表。此时如果测量值是X =4.5（工程单位），此表将把测量值大致变换为Y =2.8（变换单位）。后者的值将传递给控制计算。

编译模型
在适用于控制器设计（控制器模型）和/或仿真目标（控制器和/或仿真模型）之前，工作区间内的任何模型都必须被编译。编译操作有两个目的：第一，它验证了所设计的模型;第二，它对图形模型（GMB）进行后处理。
要启动编译过程，单击Model Builder（模型构建器）树部分的Compile（编译）。

编译模型窗口字段和按钮
Model（模型） 模型名称。
Action（操作量） 操作变量的数量。
Measured（可测量量） 可测量干扰变量的数量。
Unmeasured（不可测量量） 不可测干扰的数量。
Outputs（输出） 模型输出的数量。
Transfer（变换） 模型中传递函数的数量。
Generate new Unmeasured Disturbance Model（生成新的不可测干扰模型） 选中此单选按钮使得SMOCPro在编译过程中生成新的不可测量干扰。
Update existing Unmeasured Disturbance Model（更新现有的不可测干扰模型） 选中此单选按钮使得SMOCPro在编译过程中更新丢失的不可测量干扰。
Model Control Period（模型控制周期） 控制器中使用的模型的控制周期。
Compile Button（编译按钮） 单击完成模型编译。
有两个注意事项值得关注：
注：通过选择“Generate new Unmeasured Disturbance Model（生成新的不可测量干扰模型）”，SMOCPro将移除现有的不可测干扰。当你想保持自己的不可测干扰模型不被修改，需避免使用此选项。
注：任何模型错误都会停止编译过程。如果遇到一个错误信息，要注意建议并解决问题。
模型绘图
模型编译完成后，单击树中的Plot节点以显示模型的阶跃或脉冲响应图。

绘图窗口取决于三个输入类型选项间的分配：动作响应（MV），可测量干扰响应（DV）和不可测干扰响应（UNM）。调整行和列之间的分界线可改变绘图窗口的大小。在绘图窗口中对每个输入-输出模型都可通过双击感兴趣的窗口弹出放大窗口。单击绘图以关闭弹出窗口。

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原文：
Let us consider the user proper use of the transform tool. For this example, consider the following figure. The example shows the monotonically increasing (function) measurements in green with the blue line being the resulting piecewise linear approximation. The table in the red rectangle is the Transform table used to generate the approximation. Here, if a measurement comes in at X=4.5 (Engineering Units), this table will transform that measurement into roughly Y=2.8 (Transformed Units). This latter value is the one passed to the control calculation.
Compiling the Model
Any (and all) model must be compiled in the workspace before being suitable for controller design (controller model) and/or for simulation purposes (controller and/or simulation models). The compile operation serves two purposes: first, it validates the designed model and second, it post-processes the graphical model (GMB).
To start the compilation process, click Compile on the Model Builder section of the tree.
Compile Model Window Fields and Button
Model The name of the model.
Action The number of manipulated variables.
Measured The number of measured disturbances.
Unmeasured The number of unmeasured disturbances.
Outputs The number of model outputs.
**Transfer **The number of transfer functions in the model.
Generate new Unmeasured Disturbance Model Select this radio button to have SMOCPro generate new unmeasured disturbances during the compilation process.
Update existing Unmeasured Disturbance Model Select this radio button to have SMOCPro append all missing unmeasured disturbances during the compilation process.
Model Control Period The execution period of the model used in the controller.
Compile Button Click to perform the compilation of the model.
There are two notes worth highlighting:
NOTE: By selecting “Generate new Unmeasured Disturbance Model”, SMOCPro REMOVES the existing Unmeasured Disturbances. Avoid this option when you want to keep your own modifications of the Unmeasured Disturbance Model.
NOTE: Any and all model errors stop the compile process. If you encounter an error message, pay attention to the recommendations and address the issue.
Model Plot
After model compilation has been performed, click on the Plot node in the tree to display the plots of the model responses to either steps or impulses.
The plot window is split between three tabs depending on the type of inputs: Action Responses (MV), Measured Disturbance Responses (DV) and Unmeasured Disturbance Responses (UNM). Adjusting the dividers between the rows and columns changes the size of the plot windows. A pop-up zoomed in plot window for each input-output model can be opened by double-clicking on the cell of interest. Single clicking on the plot closes the pop-up window.

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2016.9.9