How to save data from a PV to a file

[Iñaki]

Hi all,

I´m developing a SCADA with CS-Studio 3.3.10a NSLS-II CSS.

The SCADA plots the PV (each 100 ms the signal is updated) and also gives the user the option to save data to a file. The graph has a buffer of 36000 because I want to plot 1 hour.

To save the data, while the Save button is on, I have implemented a script triggered by a sim PV:

Is there any other more optimal way to perform the data saving? I mean, sometimes the data are not collected every 100 ms accurately.Also, the graphical representation slows down, maybe because of the way to save data or perhaps due to something else.

Thank you

Iñaki