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PLC编程基础之数据类型、变量声明、全局变量和I/O映射(CODESYS篇 )
2022-07-05 22:46:00 【RXXW_Dor】
这篇文章给大家全面介绍CODESYS编程的基础知识(数据类型和变量声明的方法,包括全局变量和局部变量,掉电保持型变量 、I/O映射等),CODESYS 二进制数据类型和标识符命名规则(变量命名规则)。文中会给出CODESYS和博途、三菱PLC在接口声明方面的区别对比,方便大家理解。限于本人水平,文中难免有错误和不足之处,欢迎大家批评指正。非常感谢大家点赞关注。
1、CODESYS建议命名规则
2、二进制数据类型
3、CODESYS里如何开启帮助助手?
输入助手可以提供在当前游标位置插入的所有程序元素。打开方法: "编辑" ---> "输入助手" 或者按F2。
4、如何开启工具提示?
如果在调用函数块或函数时,为POU参数输入开括号,CODESYS将显示工具提示。工具提示包括有关参数在POU中声明的信息,如果不小心关闭了,可以用"Ctrl+Shift+空格键"重新打开该功能。
5、变量声明和附初值
6、CODESYS静态变
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