US 11,860,611 B2
Method for identifying a limited operator control and monitoring of a technical plant, operator control and monitoring system and process control system
Benjamin Lutz, Pfinztal (DE)
Assigned to SIEMENS AKTIENGESELLSCHAFT, Munich (DE)
Filed by Siemens Aktiengesellschaft, Munich (DE)
Filed on May 27, 2022, as Appl. No. 17/826,270.
Claims priority of application No. 21176905 (EP), filed on May 31, 2021.
Prior Publication US 2022/0382260 A1, Dec. 1, 2022
Int. Cl. G05B 23/02 (2006.01); G05B 19/418 (2006.01)
CPC G05B 19/41865 (2013.01) [G05B 23/0267 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for identifying a limited operator control and monitoring of a technical plant in which a process is controlled via a process control system including at least two operator station servers and at least one operator station client, and in which process objects associated with the process are distributed on process images of different operator station servers of the process control system, and for process monitoring a graphical user interface is provided on the operator station client for displaying plant images with symbols associated with the process objects, the method comprising:
determining, via a component of a first operator station server, whether a different operator station server of the process control system has failed;
reporting a failure of the different server to an alarm management component of at least the first of the operator station servers;
performing a check, by the alarm management component, to determine whether plant images which include process objects from the process image of the failed server are stored on the first operator station server and which plant images are affected by the server failure;
triggering, in this case, an operator alarm which informs the operator that operator control of the affected plant image is limited;
updating in the process image of the first operator station server, via a component which manages an alarm status of plant images, a tag which characterizes an alarm status of the affected plant image; and
displaying the operator alarm on the graphical user interface of the operator station client in conjunction with the affected plant image.