发明名称 |
COMPONENT CONFIGURATION MECHANISM FOR REBOOTING |
摘要 |
Aspects of the invention support a component configuration mechanism when rebooting a circuit module (201) of a programmable logic controller (101). A component (application) may be configured from a plurality of sources, including flash memory (204) and a web-based configuration source. The configuration mechanism avoids using invalid configuration data when replacing the communication module. The circuit module may support a plurality of components, where some of the components may be associated with a web-based configuration while other components may be associated with a CPU-based configuration. If the configuration data in the flash memory of the communication module is determined to be invalid, the communication module obtains configuration data from a web-based configuration source for a web-based configured component and from an associated CPU module (202) for a CPU-based configured component. The validity of configuration data in internal memory is determined by comparing values of cyclic checksums and configuration times. |
申请公布号 |
WO2010078397(A3) |
申请公布日期 |
2011.11.03 |
申请号 |
WO2009US69778 |
申请日期 |
2009.12.30 |
申请人 |
SCHNEIDER ELECTRIC USA, INC.;SUN, ENXI;DOGGETT, DAVID |
发明人 |
SUN, ENXI;DOGGETT, DAVID |
分类号 |
G06F11/14;G06F11/20 |
主分类号 |
G06F11/14 |
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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