Method and apparatus for displaying sequential function chart el

Details Method and apparatus for displaying sequential function chart el Method and apparatus for displaying sequential function chart el

1994-01-31

1995-06-20

Powell, Mark R.

395139, 395161, G06F 300

Patent

active

054267307

ABSTRACT:
A programmable monitoring unit which is adapted for simplifying the programming and display of user programs in a programmable controller using a sequential function charting technique. In a first embodiment, the display of the SFC data is easily compressed such that a combined display element chart is accessed by inputting a first and a second display element and a combined element representing the first and second inputs are displayed in a single display area. In a second embodiment, the present invention provides a means for readily displaying the functional status and changes of transactions based on a program's operational cycles in order to facilitate the debugging of the program.

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Edel, "The Tinkertoy Graphical Programming Environment", IEEE Trans. on Software Eng., 8/88, pp. 1110-1115.

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