On our site we have integrated our Mark-VI systems to the Power Plant DCS which is ABB Freelance 800F. The DCS reads the data from the gas tubrines' local station and the OPC link is established via fiber optic. The OPC server is configured in 2 of our ABB Stations, one for each turbine.
We have been facing an issue that parameters of the turbine (being read through OPC) often get halted on the ABB stations. The issue is rectified by restarting the respective gas turbine's local station and in certain cases the ABB station running the respective OPC Server. However, on a few occasions the same issue aggravated to the extent that it resulted in hanging of our ABB Stations leaving the boardman totally blind of the plant. Even though the problem was again rectified by rebooting the turbines' local stations, the situation is concerning as it holds the potential of plant shutdown or serious incident.
I would greatly appreciate if anyone advise as to what can be the possible reason for this scenario and what should we do to ensure it does not recur.
We have been facing an issue that parameters of the turbine (being read through OPC) often get halted on the ABB stations. The issue is rectified by restarting the respective gas turbine's local station and in certain cases the ABB station running the respective OPC Server. However, on a few occasions the same issue aggravated to the extent that it resulted in hanging of our ABB Stations leaving the boardman totally blind of the plant. Even though the problem was again rectified by rebooting the turbines' local stations, the situation is concerning as it holds the potential of plant shutdown or serious incident.
I would greatly appreciate if anyone advise as to what can be the possible reason for this scenario and what should we do to ensure it does not recur.