加载中…ABB_800xA学习笔记236：System_800xA_Control_6.0_AC_800M_Configuration26
(2023-12-11 08:31:50)
标签：
abbsystem_800xa_ac800m配置手册 |
分类： ABBDCS |
继续学习配置手册第一章功能和组件，进入第73页内容。
Control Module Execution
控制模块执行
Control modules provide data flow-driven
execution, which makes the code
design much easier
for solutions where several types and formal instances are needed.
All
控制模块提供数据流驱动的执行，这使得需要多种类型和正式实例的解决方案的代码设计更加容易。所有控制模块相互通信，因此可以确定每个实例何时可以发送和接收信息。数据流撕裂设计可防止在尝试预见正确的执行顺序时可能出现的错误，因为编译器会在后台重新排列或排序所有代码。这称为代码排序。
Direction for Control Modules
控制模块的方向
In control module
types, a parameter can have any of the following
direction:
在控制模块类型中，参数可以有以下方向：
- In 输入
- Out 输出
- In_Out
输入输出 - Unspecified
未注明
These control module parameters
follow different access rules from the code
inside the control
module and offer limitations to the methods used to connect
them.
这些控制模块参数遵循控制模块内部不同的访问原则，并且对用于连接它们的方法提供限制。
All
of them are passed by reference, which means only a reference to
the actual variable outside the control module is passed
to and from the Control module.
所有这些都是通过引用传递的，这意味着仅引用实际控制模块外部的变量被传入和传出控制模块。
The
rules governing their functioning are as follows:
管理其运作的规则如下：
- Input parameters are read
only.
输入参数只读 - Out, In_Out and Unspecified are
read and edit.
读取和编辑输出，输入输出和未注明 - Control modules on the same
level can connect only In to
Out.
- A sub control module inside could only connect its In
parameters to In parameters in the surrounding control module and
so on.
内部的子控制模块只能将其 In 参数连接到周围控制模块中的 In 参数，依此类推。 - In_out must be connected to a variable (on any level). This is
not the case if the control module is used in FD code block in a
diagram.
In_out必须连接到变量（在任何级别上）。如果控制模块用于图中的 FD 代码块，则情况并非如此。 - If the control module is used in FD code block in a diagram,
the In_out parameters can be connected to each other in FD code
block. It is also possible to connect one Out parameter to an
In_Out parameter, and an In_Out to an In
parameter.
如果控制模块在图中的FD码块中使用，则In_out参数可以在FD码块中相互连接。也可以将一个 Out 参数连接到一个 In_Out 参数，并将一个 In_Out 连接到一个 In 参数。 - One Out can be connected to Several In parameters. But, it is
not possible to have multiple data connections from the same source
on control module parameters of structured data types that have
reverse components. See Table
9.
一个输出可以连接到多个输入参数。但是，对于具有反向分量的结构化数据类型的控制模块参数，不可能有来自同一源的多个数据连接。请参阅表 9。 - A control module is allowed to write to an output parameter. An
exception is the case of output parameters that are of structured
data type containing components with the reverse attribute. It is
an error if a control module writes to a reverse component of an
output
parameter.
允许控制模块写入输出参数。例外情况是，结构化数据类型的输出参数包含具有 reverse 属性的组件。如果控制模块写入输出参数的反向分量，则会出现错误。 - A control module is not allowed to write to an input parameter.
An exception is that it is allowed for a control module to write to
a reverse component of an input
parameter.
不允许控制模块写入输入参数。一个例外是，允许控制模块写入输入参数的反向分量。
These rules apply to connecting
parameters to communication variables as
well. Communication Variable In should be connected
to In parameters and the
这些规则也适用于将参数连接到通信变量。通信变量 In 应连接到 In 参数和相应的 for
Out。编译器（和检查）会在规则被破坏时发出警告。
Unspecified parameters can be used without
limitations for compatibility reasons.
出于兼容性原因，可以不受限制地使用未指定的参数。
For
more information on Code Sorting, see the System 800xA Control AC
800M Planning
(3BSE043732*).
有关代码排序的详细信息，请参阅系统 800xA 控制 AC 800M 规划
（3BSE043732*）。
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