BRAKE BCC-1 工业模块
构造此命令时未使用数据库值。与命令一起使用的限定符参数通过将以下列表中的选项：
参数限定符：0=未使用
1=先前加载参数的作用/失效（点索引=0）
2=指定点索引参数的作用/失效
3=寻址数据的持续循环或周期性传输的动作/动作对象
4至127=按标准保留
128至255=专用（专用范围）
激活限定符：0=停用256=激活此部分定义在端口x上运行的会话y。会话计数
配置[IEC-870-5-101主文件]部分中的参数（第47页）确定此端口的会话数（受控设备）。
会话由从零开始的索引值引用。例如，如果模块配置为四个会话，配置文件应包含会话0至3的章节（即，[IEC-101主会话0]至[IEC-101主会话3））。
[IEC-101主会话y]中的参数定义了接口的特定受控设备。
MVI56-101M模块的应用需要梯形逻辑。
任务必须由梯形图逻辑处理模块数据传输、特殊块处理和状态数据接收。此外，加电处理器可以是
需要处理模块数据的初始化并清除任何处理器故障状况。
对示例梯形图逻辑进行了广泛的注释，以提供有关每个梯级的目的和功能。对于大多数应用程序，示例梯形图将不加修改地工作。模块数据与MVI56-101M模块相关的所有数据都存储在用户定义的数据类型中。
在使用模块之前，需要数据类型的实例。这是通过在控制器标记编辑标记中声明数据类型的变量来完成对话框。
3.1.1模块状态数据和变量（101MmoduleDef）与MVI56-101M相关的所有状态和变量数据存储在用户定义的系统中数据类型。在使用模块之前，需要数据类型的实例习惯于这是通过在控制器标记中声明数据类型的变量来实现的“编辑标记”对话框。下表描述了对象的结构。
No database value used with the construction of this command.
The Qualifier Parameter used with the command is determined by summing the
options from the lists that follow:
Parameter Qualifier:
0=Not used
1=Act/Deact of previously loaded parameters (point index = 0)
2=Act/Deact of the parameter of the point index specified
3=Act/Deact of persistent cyclic or periodic transmission of the addressed
object
4 to 127 = Reserved by standard
128 to 255 = Reserved for special use (private range)
Activation Qualifier:
0=Deactivate
256=Activate This section defines Session y, which runs on Port x.The Session Count
parameter in the [IEC-870-5-101 Master] section of the configuration (page 47)
determines the number of sessions (controlled devices) for this port.
The sessions are referenced by a zero-based index value. For example, if the
module is configured for four sessions, the configuration file should contain
sections for Sessions 0 to 3 (that is, [IEC-101 Master Session 0] to [IEC-101
Master Session 3]).
The parameters in [IEC-101 Master Session y] define the characteristics of the
specific controlled device to interface. Ladder logic is required for application of the MVI56-101M module. Tasks that
must be handled by the ladder logic are module data transfer, special block
handling, and status data receipt. Additionally, a power-up handler may be
needed to handle the initialization of the module’s data and to clear any
processor fault conditions.
The sample ladder logic is extensively commented, to provide information on the
purpose and function of each rung. For most applications, the sample ladder will
work without modification. Module Data
All data related to the MVI56-101M module is stored in a user defined data type.
An instance of the data type is required before the module can be used. This is
done by declaring a variable of the data type in the Controller Tags Edit Tags
dialog box.
3.1.1 Module Status Data and Variables (101MmoduleDef)
All status and variable data related to the MVI56-101M is stored in a user defined
data type. An instance of the data type is required before the module can be
used. This is done by declaring a variable of the data type in the Controller Tags
Edit Tags dialog box. The following table describes the structure of the object.
