800xA process alarm time error
I was done commissioning for a system using IIT 800xA on February 2012. But after 1 years 6 month from commissioning appear a problem. The problem come from time of process alarm, the process alarm time (active time) always exceed 7 hours from actual time. For example, if something happen on a temperature control at 1.00 pm , like high temperature or something like that. And then an alarm will appear on alarm list. But alarm time (active time) always exceed 7 hours from actual, in this case alarm time (active time) show 8.00 pm on alarm list.
Please kindly advice to fix this problem.
Thanks for your kind attention.
Also, check the TimeZone settings in the controllers. If your events are allways exactly 7 hours out then an incorrect TZ setting is the most likely cause.
Hopefully your project still has the default "Program_3" with the various Controller Memory, CPU and Time diagnostic function blocks or a copy of it. If not, you can create these again by creating a new blank project and copying the program from there. Install a copy in each controller.