CCT is a software tool that you use to configure, simulate, and commission equipment controllers that belong to the Metasys system family, such as CGMs, CVMs, FACs, FECs, IOMs, and VMAs. Among the many helpful CCT options is Supervisor Passthru, which provides you the means to download an equipment controller over the Metasys network, provided SCT 15.0 and CCT 15.0 are installed on the same computer. For more information on CCT, refer to the Controller Tool Help (LIT-12011147) .