发明名称 |
Safety controller providing rapid recovery of safety program data |
摘要 |
Re-certification of a control program loaded in a safety controller is avoided through the use of a digital snapshot and digital signature, the snapshot providing a rapidly loadable memory image file and the signature providing a confirmation that the file loaded matches a previously certified copy so as to avoid the need for time consuming re-certification.
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申请公布号 |
US7027880(B2) |
申请公布日期 |
2006.04.11 |
申请号 |
US20030675477 |
申请日期 |
2003.09.30 |
申请人 |
ROCKWELL AUTOMATION TECHNOLOGIES, INC. |
发明人 |
IZZO JOSEPH PAUL;SHELVIK NORMAN SIEVERT;KALAN MICHAEL DEAN;RISCHAR CHARLES MARTIN;BUVEL RAYMOND LOUIS |
分类号 |
G05B11/01;G05B9/02;G05B19/042;G05B19/048;G06F11/14;G06F11/16 |
主分类号 |
G05B11/01 |
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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