We use tcl in our power plant simulator. * Instructor station * Display and animation of Logic and process diagrams * Curve display, online, offline 2 xy axis pairs * Verification of simulation results * Online archiv with saving of all variable changes (up to 3000 variables and 250 ms) We use the following packages: * rbc - curve dislay * tablelist - all sort of tables * sqlite - archiv * pdf4tcl - printing <> Company