Updateing problem on internet time

Hi all

I'm trying to update the time on the controller from a website NTP stratum 2 PXI real-time.

There are two methods offered by EITHER:

Method 1 - Driver for PXI (LV > = 2009)

Method 2 - Code based

The example of function code (which works well) uses a NIST server.

I tried to adapt this to an NTP sever (Port 123, 0.au.pool.ntp.org which resolves to 116.66.160.39 [now]).

NTP is a UDP protocol, but I don't understand how to use in labview.

I can ping the address,

I can't be able to open a TCP session.

I can open a UDP Session, but I can not read or write.

Any suggestions?

I don't understand why you're citing the code example labels the constants of diagram and Subvi with 'NTP' icons, because it uses the "daytime" Protocol, which is quite different. How have you tried to adapt it to NTP? Replacing the port 123/UDP is certainly not enough. (And why you even try TCP?)

You need to correctly format a NTP request in order to get an answer, and there is a request to change he describes in detail.

A long time ago I have all a Quick a dirty pure example LabVIEW to poll a NTP server and analyze the result. For more details see this thread. It might give you some ideas.

Tags: NI Software

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