Programmable controller and method of monitoring a sequence program thereof
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United States of America Patent
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Oct 31, 1995
Issued Date -
N/A
app pub date -
Sep 16, 1994
filing date -
Apr 1, 1991
priority date (Note) -
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Abstract
A programmable controller comprises a program apparatus and a CPU unit. The program apparatus displays, on a screen, a program of an arbitrary sequence step in a sequence program programmed in the CPU unit, to monitor a device condition of the sequence program displayed during execution of the CPU unit. The CPU unit transmits an arbitrary device having an index qualification and a condition of the arbitrary device to the program apparatus during execution of the programmed sequence program. Similarly, the CPU unit can transmit the arbitrary device and the condition thereof in accordance with a condition of an index specified by an operator.
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