Invention Grant
US07027880B2 Safety controller providing rapid recovery of safety program data
有权
安全控制器提供安全程序数据的快速恢复
- Patent Title: Safety controller providing rapid recovery of safety program data
- Patent Title (中): 安全控制器提供安全程序数据的快速恢复
-
Application No.: US10675477Application Date: 2003-09-30
-
Publication No.: US07027880B2Publication Date: 2006-04-11
- Inventor: Joseph Paul Izzo , Norman Sievert Shelvik , Michael Dean Kalan , Charles Martin Rischar , Raymond Louis Buvel
- Applicant: Joseph Paul Izzo , Norman Sievert Shelvik , Michael Dean Kalan , Charles Martin Rischar , Raymond Louis Buvel
- Applicant Address: US OH Mayfield Heights
- Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee: Rockwell Automation Technologies, Inc.
- Current Assignee Address: US OH Mayfield Heights
- Agency: Quarles & Brady LLP
- Agent R. Scott Speroff
- Main IPC: G05B11/01
- IPC: G05B11/01
Abstract:
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.
Public/Granted literature
- US20050071022A1 Safety controller providing rapid recovery of safety program data Public/Granted day:2005-03-31
Information query
