| Description: | For use in expressions that perform Boolean logic. Using "TRUE" will make your code easier to read than using "1". |
| Returns: | With no parameters, returns the value, 1. If given a parameter, this function will return a 1 or 0 depending on whether the parameter evaluates to TRUE or FALSE. Always returns 0 if the parameter is Invalid. |
Usage:  |
Script or steady state. |
| Function Groups: | Logic Control |
| Related to: | False |
| Format: |
True[(TestExpr)] |
| Parameters: |
| TestExpr |
| Optional. Any expression that evaluates to a 1 or 0 value. If no parameter is provided, then there is no need to include the parentheses. |
| Comments: |
This function exists to make your code more readable. It is equivalent to PickValid(Cast(Parameter, 0) == 1, 0); For compatibility with the VTScada style guide, use all caps (TRUE and FALSE) when used as a constant. Capitalize only the first letter when used as a function call: True(test expression) and False(test expression). |
