内存标签没有来源,但可以写入值。 3.1.3. Expression 表达式标签使用一个算式来计算值。 Expression:表达式的计算公式。 Execution Mode:执行模式,表明何时重新计算表达式,一般选择Event Driven即可,自动按照表达式中的公式和引用内容判断重新计算的时机。 3.1.4. Reference 引用标签的值直接引用另一个标签 3.2. Data Ty...
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I already searched alot, i tried creating parameters with expression binding (Date and Time) and then add my Historical Tag but it still doesn’t do what i want. Thank you for your help, and sorry for my bad english by the way. :b KathyApplebaum September 6, 2016, 4:17pm 2 This...