Safety controller providing rapid recovery of safety program data
摘要
<p>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. <IMAGE></p>
申请公布号
EP1521148(A1)
申请公布日期
2005.04.06
申请号
EP20040021652
申请日期
2004.09.11
申请人
ROCKWELL AUTOMATION TECHNOLOGIES, INC.
发明人
IZZO, JOSEPH PAUL;KALAN, MICHAEL DEAN;BUVEL, RAYMOND LOUIS;SHELVIK, NORMAN SIEVERT;RISCHAR, CHARLES MARTIN