发明名称 |
MONITORING DEVICE FOR SEQUENTIAL FUNCTION CHART TYPE PROGRAMMABLE CONTROLLER |
摘要 |
PURPOSE: To speedily specify a cause at the time of abnormality occurrence in a sequential function chart(SFC) type programmable logic controller(PLC). CONSTITUTION: The reference value of active time in any arbitrary step is stored, the active time in the arbitrary step in a program is measured and by having the measured active time exceeds the reference value, abnormality is detected. Also, it is stored whether respective steps are executed, and the program is displayed in the state of distinguishing abnormality detected steps, executed steps and not yet executed steps.
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申请公布号 |
KR20010050511(A) |
申请公布日期 |
2001.06.15 |
申请号 |
KR20000054831 |
申请日期 |
2000.09.19 |
申请人 |
TOYODA MACHINE WORKS, LTD. |
发明人 |
FUJISAKI MASAHARU;KATO HIDETOSHI;TAKAHARA HIROYUKI;YAMASHITA TATSUYOSHI |
分类号 |
G05B23/02;G05B19/05;G06F9/32;(IPC1-7):G06F9/32 |
主分类号 |
G05B23/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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