Library version

All libraries have a specific version. This version is shown in the PLC library repository too.
A global constant contains the library version information:

Global_Version 


VAR_GLOBAL CONSTANT
    stLibVersion_Tc2_SMS_SMTP : ST_LibVersion;
END_VAR

ST_LibVersion

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


Library version 1:

Compare versions

All other possibilities known from TwinCAT2 libraries to query a library version are obsolete!