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- procdemo (Process Control Demo)
-
- There is an icon for this demo in the demo program group. To run the
- Process Control Demo, open the demo program group and double-click on the
- icon. If you have installed the demo it will run from the hard drive.
- Otherwise it will run from the CD-ROM drive. You will be prompted to
- insert the DataViews CD.
-
- To remake the demo:
-
- 1. Open an MS-DOS command prompt.
-
- 2. Go to the directory for the demo:
-
- cd <dataviews>\dvtools\demos\procdemo
-
- 3. To make the demo, type:
-
- nmake
- -------------------------------------------------------------
-
- This demo simulates a process control environment. The level of the holding
- and reaction tanks are controlled by the position of the valves. Users can
- monitor the plant by switching views.
-
- The first level view is a schematic of a entire process control plant with the
- interesting area highlighted on the right. The second level view "zooms in" on
- the highlighted area. There are two lower level views showing the "holding"
- and "reaction" part of the process.
-
- To move around the views:
-
- Select ZOOM to get to the second level.
- Select the HOLDING TANK FLUID or the REACTION TANK FLUID to get
- to the lower levels.
- Select the RETURN box to get back to the previous levels.
-
- To control the process:
-
- Open the VALVES by selecting them with the LEFT mouse button
- or the "o" key.
- Close the VALVES by selecting them with the RIGHT mouse button
- or the "c" key.
- If a valve registers STUCK, continue selecting until it begins
- to move.
-
- While on the second level you can click on RAW_MATERIAL or PRODUCE to merge in
- a graph showing the details of the input and output of the process. To unmerge
- the graph select the object again.
-
- Select the QUIT option on the top level to exit this demo.
-
- This demo updates continuously. The program runs a tight loop, and updates the
- screen as often as the cpu lets it. This mode is supported on all display
- devices. The user can specify the device name on the command line.
-