Pragmas for IEC Variables
The IEC 61131-3 standard defines variable pragmas for program pre-processing and post-processing.
| Note
In the current PLCnext Engineer version, pragmas can be defined only in data types worksheets, i.e., when defining user-defined data types. Variables tables do currently not provide a possibility for defining pragmas. |
In the current PLCnext Engineer version, only the pragmas TrueLabel{'labelString'} and FalseLabel{'labelString'} for Boolean variables are supported.
Example: In a user-defined STRUCT data type, a TrueLabel pragma is defined for a Boolean variable Heater.
The pragma influences the online representation of the variable: If Heater = TRUE, the online value "Heating..." is displayed instead of TRUE. The following example shows the WATCHES window with the variable being TRUE and 'Display > Label' selected as display mode 
‣ WATCHES: Monitoring/Debugging the Application
×‣ WATCHES: Monitoring/Debugging the Safety-Related Application
×.
The pragma is also displayed as possible force/overwrite value:
