time and date error in 800xa system ac800m for substation automation system
we are using 800xa system for substation automation( for monitoring switchgears) with ac800m controllers.from few dyas we are facing some time and date errors in our all our connectivity servers. we have total 4 connectivity servers and server 1 & 2 configured as PPA time server redundant.and time source is gps clock srver and its showing right time.whenever i am trying to change the date and time in servet 1 & 2 the changes valid only few seconds after that going back to normal wrong time.how can i restore date and time in connectivity servers.aslo its affected aspect,operator,historian servers bcs connectivity servers are the time source for these servers.even our many field controller(AC800M),Process panel date and time has been changed due to this problem.
see the configuration details..
1- gps clock is the time source to --->connectivity server 1/ server 2,server 3, server,4 (all are NTP Server/Client)
2- connectivity server 1 & 2 PPA time server and redundant
3-aspect,operator,historian, (all are PPA clients syncing from PPA time server)
4-engineering station NTP server(client is Process panel)
4-connectivity servers are the time source for ac 800 controllers (some controllers are configures asCNCP master and CNCP slave)
how can i restore my date and time back to noramal kindly ask if you need more details about configuaration
kindly replay ASAP
thank you all
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