Write signal with time stamp
hii...
I've a student project to read and write data from a continous signal with labVIEW.. I'm going to read the system for 24/7, The reading program already finished.
The problem is in the writing procces.. I have no idea how to write data to file with low level vi.. I'm new in LabVIEW and I already try some modification to my program but it still don't work as i want.
I want the writing procces only occur when i press the button and it only run for a few second with constant time stamp.. It just to check if there are any data missing or not.. The system are a fast (It's what make problem bigger).
I'm getting crazy at all.. If some one could help me i will be very grateful... I'm using LabVIEW 8.5 and PCI 6259...
Kind Regards,
Dani
-Keep Learning-
Attachments:
Read Circle Encoder.gif 22 KB
Hi Dani,
here's the two-loop version...
When you use the local you wouldn't need the queue at all... But using locals may lead to race conditions (not in your simple vi, but general) - locals don't provide "atomic" data access.
In Labview the wire is equivalent to variables in text programming languages!
The vi uses the producer-consumer-scheme (Erzeuger-Verbraucher-Struktur ?): one loop is producing values, the other is consuming them. It's a common scheme in LV programming, you will find examples and a lot of threads here in the forum.
Best regards,
GerdW
CLAD, using 2009SP1 + LV2011SP1 + LV2014SP1 on WinXP+Win7+cRIO
Kudos are welcome
Attachments:
circle.vi 48 KB
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