加载中…ABB_800xA学习笔记239：System_800xA_Control_6.0_AC_800M_Configuration29
(2023-12-11 10:44:05)
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abbsystem_800xa_ac800m配置手册功能和组件 |
分类： ABBDCS |
继续学习配置手册第一章功能和组件，进入78页
FD Port
FD端口
The FD Port column appears in the
editor for function block types, control
module types, and
diagram types. This column is only significant for the types that
are
FD端口列出现在功能块类型，控制模块类型和图表类型的编辑器。此列仅对在功能图 （FD） 代码块中实例化的类型有意义。
The
normal choice is Yes or No. The value specifies if the parameter
shall be visible when the function block type, control module
type, or diagram type is instantiated
in
正常选择是“是”或“否”。该值指定在 FD
代码块中实例化功能块类型、控制模块类型或图表类型时参数是否可见。默认值为“是”。
There
are extra choices (Left or Right) for control module parameters
with direction unspecified and parameters with direction
in_out. These choices are related to
the
对于未指定方向的控制模块参数和方向in_out的参数，有额外的选择（左或右）。这些选择与参数端口在
FD 代码块中的位置有关。
Unspecified parameters are placed on the left
side by default, and in_out
parameters are
placed on both sides by default.
默认情况下，未指定的参数放置在左侧，in_out参数默认放置在两侧。
There
are some types with structured parameters that are mostly output,
but also contain
some input components. Such a parameter must be either an
Unspecified
有一些类型具有结构化参数，这些参数大多是输出的，但也包含一些输入组件。此类参数必须是未指定的参数（仅限控制模块类型）或In_Out参数
The
following list of alternatives are available for parameters of
direction unspecified:
以下备选方案列表可用于未指定方向的参数：
- No - Not visible as a port. The
parameter will be placed on the left side of the object if the user
decides to show it later on.
否 - 不显示为端口。如果用户后期决定显示它，参数将在对象左边。 - No Left - Not visible as a
port. The parameter will be placed on the left side of the object
if the user decides to show it later
on.
不在左边 - 作为端口不可见。如果用户决定稍后显示该参数，则该参数将放置在对象的左侧。 - No Right - Not visible as a port. The parameter will be placed
on the right side of the object if the user decides to show it
later on.
不在右边 - 作为端口不可见。如果用户决定稍后显示该参数，则该参数将放置在对象的右侧。 - Yes - Visible as a port on the left side of the
object.
是 - 作为端口在对象左侧可见 - Yes Left - Visible as a port on the left side of the
object.
是在左边 - 作为端口在对象左侧可见。 - Yes Right - Visible as a port on the right side of the object. 是在右边- 作为端口在对象右侧可见。
The following list of alternatives
are available for parameters of direction in_out:
以下备选方案列表可用于方向in_out参数：
- No - Not visible as a port. The parameter will be placed on both sides of the object if the user decides to show it later on. 否 - 不显示为端口。如果用户后期决定显示它，参数将在对象左右两边
- No Left - Not visible as a port. The parameter will be placed on the left side of the object if the user decides to show it later on. 不在左边 - 作为端口不可见。如果用户决定稍后显示该参数，则该参数将放置在对象的左侧。
- No Right - Not visible as a port. The parameter will be placed on the right side of the object if the user decides to show it later on. This is only available for parameters of function block types. 不在右边 - 作为端口不可见。如果用户决定稍后显示该参数，则该参数将放置在对象的右侧。这仅适用于功能块类型的参数。
- Yes - Visible as a port on both sides of the object 是 - 作为端口在对象左右两侧可见。
- Yes Left - Visible as a port on the left side of the object. 是在左边 - 作为端口在对象左侧可见。
- Yes Right - Visible as a port on the right side of the object.
This is only available for parameters of function block
types.
是在右边- 作为端口在对象右侧可见。这仅适用于功能块类型的参数。
It is not recommended to use a
function block type parameter of direction in_out with its FD Port
property set to Yes Right. In this case, it is only possible to
connect this type of parameter to a variable, parameter, or
communication variable.
不建议将功能块类型的FD端口in_out的方向型参数设置为Yes
Right。这种情况下只能将这种类型的参数连接到变量、参数或通信变量。
Therefore, it is recommended to use parameter
with direction out and attribute by_ref, instead of in_out with Yes
Right option, so that this parameter can be connected to input port
of another object.
因此，建议方向型参数out和属性 选项的 in_out参数，这样一来，参数可以连接到另外一个对象的输入。
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