LabVIEW
Recording/application runs slowly, when the computer is locked
Hi Paul,
@SilasofPaul wrote:
We have developed a application to receive the signal for temperature, vibration etc. from PLC and display the data on the graph. At the same time the test time is also recorded. The basic structure is the producer&consumer. The data transmission for the signal is through notifier.
The software runs quite well, but when we lock the computer, after a few hours the graph disappears (the time on graph is much slower than the test time because of an unclear delay; the recording for the test time works correctly). Our question is, why the problem happens only when the computer is locked.
Can you please help me?
Well, we could help a lot better when you would attach your VI(s)/project…
The term "after a few hours" often refers to a memory problem due to evergrowing arrays: are you sure you avoided this problem?
How/why do you need notifiers to transfer signals? Are there any timeouts involved in transferring signal data?
@SilasofPaul wrote:
We have developed a application to receive the signal for temperature, vibration etc. from PLC and display the data on the graph. At the same time the test time is also recorded. The basic structure is the producer&consumer. The data transmission for the signal is through notifier.
How are you communicating with the PLC? There are several "power saving features" Windows will seemingly randomly enact, including things like turning off USB hubs. My first thought would be one of these "features" is slowing things down on you.
