ABB ST语言编程(17)

System 800xA Training

13.5.5Type Mismatch in Assignment

This occurs when the programmer has mixed data types in an assignment statementIn this case the programmer has attempted to add a “real” and a“dint” to get a“dint”result. (You can’t multiply apples with pears!)

13.5.6Incompatible Types in Expression

This occurs when an operation has been attempted on different types that are not

compatible for that operation:

In the above areal has been added to abool.

Chapter13-17