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Old November 24th, 2022, 08:38 PM   #1

Revnus is offline
Join Date: Aug 2019
Location: Brazil
Posts: 51
Exclamation Problem with Panelview plus 700

Hi. I'm working on a plant that has a panelview plus 700.

Problem is that from time to time, the alarm list shows an old false alarm instead of the real alarm. For example: Instead of "emergency active" it will show "low pressure", which is an old alarm that is already ok.

Operators at the area try to find the alarm for a long time, until they realize it is a false alarm. Then they shutdown the runtime application using a screen button leading to the panelview builtin options, and then they run application again. Doing this process, the real alarm will show, not the false one.

Since I dont have any better clue, I tried to create other .MER using remote clear history function from FTViewME, but the panelview firmware does not support runtime version that have this function..
Other option would be to reset the runtime using logic, shutting down automatically instead of operators doing it manually when they notice the alarm is not real, but I dont know how to do it.

I suspect the problem might be something related to logs or cache, but what can I do?

The time that the area operators spend trying to find what is causing a fake alarm is really expensive to the plant. If I cant find a solution, I think they will have to buy other HMI.

Other info:
- Latest firmware listed in SCDC for panelview plus 700 is 5.1, but when I go to terminal settings, it shows ME Station 6.0.
- Intermitent problem. It might not happen for a week or a month.
- I will try to increase the number of alarms (128 now), this will delay the problem but wont solve. What is the max number of alarms in PanelviewPlus 700, btw?

Discovering the solution for the real problem (Cache? Logs?) will be great, but a other solutions as showing how to to shutdown the Runtime automatically, are ok aswell.

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