Patent ID: 8639799
Filing Date: 2014-01-28
Classification: G05B,Y02P

Abstract:
1. A method to supervise an industrial control system, comprising a plant network for supervision, a client/server network for server connection with workstations, a control network connected to industrial controllers, said method comprising the steps of gathering process information, and gathering network information, characterized by the further actions of comparing information provided by data communications network monitoring with process control information and using the result of the comparison to assist in determining a cause of a problem or possible problem in a process controlled by the said industrial control system; further characterized by recording at least one of an information, an event, and an alarm in said industrial control system when the said process information indicates problems, but the said network monitoring information does not indicate problems; checking, on receipt of a faulty status for a process device, that process logic installed on the process device is as expected, checking, on receiving confirmation that the process logic is as expected, all network devices connected to the process device, generating an alarm for the process logic of the process device or the process device if all the network devices show a normal status; and generating an alarm if some of the network devices show a faulty status for the faulty network devices.