METHOD FOR ERROR MONITORING, CONTROL AND DATA TRANSMISSION INSTALLATION AND CONTROL DEVICE

摘要

To simplify and/or improve error monitoring in a control and data transmission system for redundant process control, provided is a method for error monitoring in which errors detected by a first control device are stored locally as well as transmitted to at least one redundant second control device, which is arranged remotely, and also stored there so that in each case the error history of both control devices and is available locally for diagnosing the whole redundant system. Further provided is a control and data transmission system designed to carry out the method and a control device for use therein.

主权项

1. A method for error monitoring in a control and data transmission system designed for redundant process control and having at least one first control device and one second control device, which is redundant with respect to the first and arranged remotely from the first, said control devices being connected by means of a communications network to at least one process device designed as an input and/or output device, wherein a communications connection exists between the first and second control devices, with the steps of:
detecting an error by the first control device, storing error information relating to the detected error in the first control device, transmitting the error information from the first to the second control device, and storing the error information received from the first control device in the second control device.