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US 2012/0198226 A1Published application
Checking a configuration modification for an ied
AssigneeABB Technology AG
InventorWolfgang WIMMER
Life of this patent
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AssigneeABB Technology AG
InventorWolfgang WIMMER
Estimating the term…
Exemplary embodiments are directed to a system and method of checking, during regular operation of a Process Control PC or Substation Automation SA system, an intended configuration modification for a mission-critical IED. The IED receives, from an authenticated requestor, a modification request directed to IED configuration, parameter or setting data. The IED then checks the requested configuration modification, and rejects it in case no approval or confirmation is made by an approver independent of the requestor, and otherwise accepts and implements. The IED authenticates the approver prior to receiving the request, and stores, in a local memory, a configuration modification plausibility check provided by the approver. The stored plausibility check is then performed, by a plausibility checking unit, on the intended modification, and the latter is rejected or approved based on a result of the stored plausibility check when applied to specific circumstances of the configuration modification request.
A method of checking a configuration modification for an Intelligent Electronic Device (IED) in a Process Control (PC) or Substation Automation (SA) system, the method comprising:
An Intelligent Electronic Device (IED) in a Process Control (PC) or Substation Automation (SA) system, with a device functionality configurable during operation of the system and adapted to authenticate a requestor, receive a configuration modification request from the authenticated requestor, authenticate an approver independent of the requestor, and approve or reject the configuration modification request based on an approval from the approver, the IED comprising:
A method of checking a configuration modification for an Intelligent Electronic Device (IED) in a control system, the method comprising:
A computer readable medium storing program code for a method of checking a configuration modification in an Intelligent Electronic Device (IED), which when the medium is in communicatible contact with a processor, causes the processor to execute the method comprising:
Dependencies are inferred from the claim text.