PKS system server has crashed
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Our company’s DCS system uses Honeywell PKS; it has five operator stations, 2 servers, and 2 pairs of controllers. I would like to consult with relevant technical experts regarding what would happen if both servers failed at the same time, or if both pairs of controllers failed simultaneously.
Needless to say, such a situation will not occur; if it did, production would come to a complete halt!
Only by stopping production and operations. There’s no other way! But the probability of this happening is quite low, you know
If this occurs, all measurement point data will show invalid values; the control valve will lose control and return to its initial position automatically. This is merely my personal opinion.
Worried about this issue? The server is broken, but the controller is fine; control is still possible ； If everything fails, control is lost; the valves that should open will open, and those that should close will close. Complete production halt in progress....
If the servers are damaged, the C station can still be used to read the data from the controllers, allowing for some continued operation; only real-time data will be available, while historical data will not be accessible. If both the servers and the controllers are damaged, then there’s nothing left but to wait for the system to stop working!
This generally doesn’t happen; controllers are designed to be redundant. If a controller stops working, it means the factory has to shut down. However, if a server stops working, it can be restarted in a short time, resulting in less impact
Reply to 1# wqhhlhb1: This situation should occur very rarely. If the DCS operation station is set to console instead of flex station, the death of the server will not affect production.
Reply to 1# wqhhlhb1: Then go buy a lottery ticket right away!
Reply 1# wqhhlhb1: It’s practically impossible. Most problems still occur on the server!