NUMERICAL CONTROLLER FOR STORING OPERATING HISTORY DURING PATH TABLE OPERATION
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United States of America Patent
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Issued Date -
May 14, 2009
app pub date -
Oct 2, 2008
filing date -
Nov 13, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
During path table operation, date and time information at sampling, the value of the reference signal, the position of an axis controlled in synchronization with the reference signal, and information on the state of the numerical controller are stored, for each predetermined sampling cycle, in buffer as operating history information. The operating history information stored in buffer is then transferred in operating history saving memory when an alarm is generated, and then displayed on a display device. By displaying operating history in this way, the location of the data instructed in path table operation, the state of the numerical controller and the position of the control axis when an alarm is generated can be specified.
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