ABB_800xA学习笔记260：System_800xA_Control_6.0_AC_800M_Configuration50

继续学习第一章配置手册功能和组件，进入第127页。
Extensible Parameters in Function Blocks
功能块中的可扩展参数
Some function block types have extensible parameters, such as MMSRead, COMLIRead, etc. This means that the number of input/output parameters is changeable, and must be specified while declaring the function block in the function block tab.
某些功能块类型具有可扩展的参数，例如 MMSRead、COMLIRead 等。这意味着输入/输出参数的数量是可变的，并且必须在功能块选项卡中声明功能块时指定。
The editor automatically inserts [1] when the user specifies a function block type with extensible parameters. Change the number within the brackets to the required number of parameters.
当用户使用可扩展参数指定功能块类型时，编辑器会自动插入 [1]。将括号内的数字更改为所需的参数数。
To see which function block types can have extensible parameters and the maximum number of parameters for each type, see the Control Builder online he