Library version

All libraries have a certain version. The version is indicated in the PLC library repository, for example. A global constant contains the information about the library version:

Global_Version

VAR_GLOBAL CONSTANT
    stLibVersion_TC3_Database_Server : ST_LibVersion;
END_VAR

Use the function F_CmpLibVersion (defined in the Tc2_System library) to check whether you are using the correct version.

Library version 1:

All other options for comparing library versions, which you may know from TwinCAT 2, are outdated!