xMII Logic for calculating mean time

[Former Member]

Hi All,

My xMII is connected to OPC and from OPC server I am getting the Status of few equipments. I am trying to calculate the mean time between failures. Let me be bit precise.

Lets take for example, an equipment called Reactor. The Reactor was in running status at 6:00. The status was failure at 6:15, again failure at 6:30. So, I have to track the mean time between two successive 'Failures'. If the time difference between two successive failures exceeds 15 mins, then an entry of that equipment is to be made into the database.

Can anybody help me out with a logic as to how should I proceed??

And please explain the steps in detail.

Thanks in Advance,

Lipsa.

[Former Member]

If your OPC tag is a digital tag, you can se the totalizer block and some simple math to achieve this. But you'll need to read the documentation first, try it, then come back with questions!