JP5097013B2 - Plcにおける接点状態診断方式および応急対策方式 - Google Patents
Plcにおける接点状態診断方式および応急対策方式 Download PDFInfo
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- JP5097013B2 JP5097013B2 JP2008142134A JP2008142134A JP5097013B2 JP 5097013 B2 JP5097013 B2 JP 5097013B2 JP 2008142134 A JP2008142134 A JP 2008142134A JP 2008142134 A JP2008142134 A JP 2008142134A JP 5097013 B2 JP5097013 B2 JP 5097013B2
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- plc
- input
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Description
2 機器パネル
3a〜3d 入力接点
3e〜3h 出力接点
4 操作スイッチ
5 予備接点
6 PLC本体
Claims (2)
- 故障診断の対象となる接点を予備接点に置き換え、スイッチ操作でその予備接点の番号を上記故障診断対象となる接点の番号に合わせると、上記予備接点が上記故障診断対象となる接点と同等の機能を果たして当該予備接点を介する上記PLCや外部機器の信号の入出力状態から、上記故障診断対象となる接点の状態を診断可能とした、PLCにおける接点状態診断方式。
- 請求項1に記載の方式で上記接点が故障していると診断されたときは、その接点を応急接点で代替する、PLCにおける応急対策方式。
Priority Applications (1)
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JP2008142134A JP5097013B2 (ja) | 2008-05-30 | 2008-05-30 | Plcにおける接点状態診断方式および応急対策方式 |
Applications Claiming Priority (1)
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JP2008142134A JP5097013B2 (ja) | 2008-05-30 | 2008-05-30 | Plcにおける接点状態診断方式および応急対策方式 |
Publications (2)
Publication Number | Publication Date |
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JP2009289110A JP2009289110A (ja) | 2009-12-10 |
JP5097013B2 true JP5097013B2 (ja) | 2012-12-12 |
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ID=41458256
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JP2008142134A Expired - Fee Related JP5097013B2 (ja) | 2008-05-30 | 2008-05-30 | Plcにおける接点状態診断方式および応急対策方式 |
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JP (1) | JP5097013B2 (ja) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5977506A (ja) * | 1982-10-25 | 1984-05-04 | Kawasaki Heavy Ind Ltd | 制御装置 |
JPH027199A (ja) * | 1988-06-27 | 1990-01-11 | Hitachi Constr Mach Co Ltd | 建設機械用制御コンピュータの故障診断装置 |
JPH06119011A (ja) * | 1992-10-02 | 1994-04-28 | Mitsubishi Electric Corp | シーケンサの入出力用チェッカ |
JPH0783796A (ja) * | 1993-09-10 | 1995-03-31 | Fujitsu Ltd | 発光素子正常異常チェック方法 |
JPH0887422A (ja) * | 1994-09-16 | 1996-04-02 | Mitsubishi Electric Corp | ディジタル信号回路 |
JP2001004714A (ja) * | 1999-06-23 | 2001-01-12 | Nippon Denki Musen Denshi Kk | 集積回路のテスト端子共用化方法および方式 |
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2008
- 2008-05-30 JP JP2008142134A patent/JP5097013B2/ja not_active Expired - Fee Related
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JP2009289110A (ja) | 2009-12-10 |
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