— UCSIGNAL —

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UCSIGNAL gives users a 'drawing pad' on which they can design their control system. Once built, it is passed on to UCONLINE for actual operation.

The large Diagram Window on the left is where one builds the desired configuration by placing and connecting elements.
The brown portions of the diagram shown are a fixed representation of the plant (or in this case a simulation), provided by the instructor, on which the student can build his or her control configuration. The student has here begun construction, by connecting a level sensor with a valve actuator through a controller element.
To the right of this this is the Element Selection window, where the particular element type to be placed or inserted in the diagram is selected.
All of these are Process Variables except for the Controller at the bottom. There are several controller algorithms available, but they are selected in the controller's panel, rather than being distinct types. (You may notice that there are no Input or Output variable types in the set shown. These are fixed in the plant itself, so the student has no need to place others.)
At lower right is the (small!) Main Window. This has nothing except some menus to control global operations, such as loading and saving configurations.

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