Depending on the application, features of the controls include: electro-luminescent or LCD operator displays, high-speed event detection for real-time response, high-density/high-power digital I/O, analog I/O, closed-loop control, alarm and fault detection and display, on-board diagnostics, Multibus or
ISA bus architecture, 386 microprocessors, DOS platform, plotting and graphics, real-time clock, soft keys, printer output, and auxiliary-equipment interface.