Library version

All libraries have a characteristic version. This version can also be seen in the PLC library repository.
A global constant contains information on the library version:

Global_Version

VAR_GLOBAL CONSTANT
    stLibVersion_Tc2_TempController : ST_LibVersion;
END_VAR

The function F_CmpLibVersion (defined in the library Tc2_System) is offered to compare the existing version with a required version.