有两个属性可分配给特定传递函数模块。 “增益，延时，一阶，二阶和斜坡”模型允许在线修改增益。“一阶和二阶”模型提供了闭环设定动态的方法。
PID /串级回路
通过选择模块属性对话框中的PID/串级回路箱可以将一阶和二阶模型设置为动态闭环回路。在编译时其将为不可测量干扰自动生成相应的零增益动态（参考“编译模型”一节）。
修改增益
对于符合条件的模型类型，可通过选择模块属性对话框中的修改增益工具箱设置修改增益属性。
输出模块和中间变量
输出模块包括了一个隐含的总和模块（见下图）和模型中间变量的输出连接器（POV与POV间的连接）。
添加总和模块
当你通过将SMOCPro库面板中的总和模块元素拖放到模型搭建窗口而向模型添加一个总和模块时，新的总和模块具有两个默认端口，一个正的，一个负的。
如果需要，可以方便地添加更多端口。添加更多端口的步骤如下：
1.右键单击总和模块；
2.从菜单中选择Block Properties（模块属性）；
3.当传递函数属性窗口打开后，通过使用标签字段列表输入所需的端口（+）或（-）符号添加更多端口。
鸟瞰图
鸟瞰图是用于浏览大模型的有力工具。当前模型窗口被一个矩形所框住时，其显示了减小窗口的整体结构。你可以通过查看器矩形完成：
•将矩形移动到所需位置导航模型；
•通过调整矩形尺寸放大或缩小；
•当你改变模型后，通过更新鸟瞰图实时追踪模型变化。
子系统模块
模型视图窗口和鸟瞰图让你用自己的方式浏览模型。不幸的是，当视图中的传递函数模块数量过大时，可能不容易找到特定过程实体。
为了解决这个问题，GMB提供了将部分模型封装进子系统模块的能力。子系统可被视为模型的一个子单元（相对于工艺流程）。其通过使用输入/输出端口连接到模型的其它部分。
原文：
There are two properties that can be assigned to specific transfer function blocks. The “Gain, Delay, First Order, Second Order and Ramp” models all allow their gains to be modifiable online. The “First Order and Second Order” models provide the means to set their dynamics in closed-loop.
PID/Cascade Loop
First and second order models can be set as closed-loop dynamics by checking the PID/Cascade loop box in the block property dialog. This automatically generates the corresponding zero gain dynamics for the unmeasured disturbance at compile time (refer to the section titled “Compiling the Model”).
Modifiable Gains
The modifiable gain property for qualifying model type is set by checking the Modifiable Gain box in the block property dialog.
Output Blocks and Intermediate Variables
The output block includes an implicit sum block (see figure below) and an output connector to model intermediate variable (POV to POV links).
Adding Sum Blocks
When you add a sum block to the model by dragging and dropping the sum block element from the SMOCPro Library panel into the model builder window, the new sum block has two ports by default, a positive one and a negative one.
More ports can be easily added if needed. The procedure to add more ports is as follows:
1.Right click on the sum block.
2.Select Block Properties from the menu
3.When the Transfer Function Properties window opens, use the List of Signs field to add more ports by entering the desired signs for the ports (+) or (-).
Bird’s-Eye View
The Bird’s Eye Viewer is a powerful tool used to navigate around a large model. It shows the overall structure in a reduced window while the current model window is outlined with a rectangle. The viewer’s rectangle lets you:
• Navigate the model by moving the rectangle to the desired spot.
• Zoom in or out by adjusting the size of the rectangle.
• Keep track of real-time changes to the model by updating the Bird’s Eye Viewer when you change your model.
Sub-System Blocks
The model view window and Bird’s Eye Viewer let you navigate your way within the model. Unfortunately, when the number of transfer function blocks in the view gets too large, it may not be easy to locate specific process entities.
To address this problem, the GMB provides the ability to encapsulate parts of the model into blocks called sub-systems. A sub-system can be regarded as a sub-unit of the model (with respect to the process). It is connected to the other parts of the model using input/output ports.
2016.8.1
