Problems saving datastreams in .tdms format in a real time project

[Rui_KTH]

Hi,

I'm doing a project where I want to save real time data. I'm collecting my signal with a NI PXI-1031 unit and display it as a graph. I want to save the vaules using TDM streaming. In my real time project I use TDMS open, TDMS write and TDMS close, I connected them as shown in the attached picture.

I can see the signal on the graph but the problem is that no .tdms file is created. Why?

thanks

[Rui_KTH]

Oops, forgot the picture...

[Herbert Engels]

Looks like you need to set "operation" to "create or replace" instead of "open".
Herbert