| 摘要 |
FIELD: physics, control.SUBSTANCE: invention relates to technological process control systems and substation automation, and specifically to monitoring safety aspects during configuration and parameterisation of devices in such systems. The method of checking a configuration modification for an intelligent electronic device (IED) in a process control (PCT) or substation automation (SA) system comprises authenticating, by the IED prior to receiving a configuration modification request, the approver independent of the client, and storing, in the memory of the IED, a configuration modification reliability check elaborated by the approver, wherein the reliability check includes a maintenance schedule for the IED, a set of rules, or an expert system, for judging whether the configuration modification is acceptable, and approving or rejecting the configuration modification request based on a result of the reliability check used for specific circumstances of the configuration modification request.EFFECT: checking reliability when the approver is inaccessible, which minimises time delay caused by the checking procedure.6 cl, 1 dwg |
