How to control time with great precision
Hello everybody.I know Timer could control time.But it uses thread.sleep(),isn't it.That means it is not guaranteed.So,does anybody know some approach to control time precisely?
thanks in advance!
Hello everybody.I know Timer could control time.But it
uses thread.sleep(),isn't it.That means it is not
guaranteed.What do you mean by "not guaranteed". How can you expect a non-realtime multitasking OS that uses virtual memory (i suppose you are using a system like windows or linux) to guarantee anything? Some systems are better in this regard, but in addition to this you aslo have the garbage collection. Of course there might be ways to implement soemthing more precise in Java , but without a special VM on a special OS there is no guarantee that it will really work imho.
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"[email protected]" wrote in
news:506500000008000000296D0000-1031838699000@exchange.ni.com:
> I want to control HP8350B with plug in HP83592A and HP8757A by NI
> GPIB,using Labview language and print out HP8757A screen chart to
> printer, but when I sent command to HP8757A according to HP8350B
> manual ,such as "PT19",the instrument has no response,could andbody
> has experience on it and tell me how to do?
After you send "PT19" to the 8757, usually at address 16.
Send the commands you want to go to the 8350 to address 17.
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[Forum FAQ] How to sync time with a Domain Controller for a standalone server
As we all known, if a computer belongs to an Active Directory domain, it will sync the time automatically by using the Windows Time service that is available on Domain Controllers.
While a standalone server will synchronize with its local hardware time and Windows time server. (Figure 1)
Figure 1.
Under some circumstances, a standalone server is necessary in a product environment. We can sync the time of this standalone server with the Domain Controller using
the steps below:
1. Modified the value of the AnnounceFlags:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config
Under this entry we can see the default value of AnnounceFlags is 10 (Decimal), we configure the value as 5 (Decimal). (Figure 2)
Figure 2.
2. Confirm the value of the registry key below is set to 0:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpServer
Figure 3.
3. Configure the standalone server to synchronize with a specific time source (Domain Controller).
In our test, we configured our Domain Controller (192.168.10.200) as the time source. Used the following commands:
w32tm /config /syncfromflags:manual /manualpeerlist:192.168.10.200
4. Sync the time with the Domain Controller using the command below:
w32tm /config /update
From the figure below (Figure 4), you can see the after we did all the steps above, the time on the standalone server was synced with the Domain Controller.
Figure 4.
(Note: Peerlist is a separated list of DNS servers, or IP Addresses for the time servers)
More information:
Windows Time Service Tools and Settings
http://technet.microsoft.com/en-us/library/cc773263(WS.10).aspx#w2k3tr_times_tools_dyax
Please click to vote if the post helps you. This can be beneficial to other community members reading the thread.Thank you for the instruction! I am sure it is one of the scenarios that majority of administrators will run into. So I suggest to write a wiki about it and publish it for this month's TechNet Guru in Windows Server section. This month's TechNet Guru can
be found here:
Calling All Wise Men! Windows
Server Gurus Needed! Apply Within! No One Turned Away!
Thanks for your informative post. :)
Regards.
Mahdi Tehrani |
|
www.mahditehrani.ir
Please click on Propose As Answer or to mark this post as
and helpful for other people.
This posting is provided AS-IS with no warranties, and confers no rights.
How to query members of 'Local Administrators' group in all computers? -
How to control animation with touch
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How to display time with min ,sec in select lis lov - 0-23 hrs and 0-59 min
Hi,
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Kind Regards,
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SELECT LEVEL d, LEVEL r
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END;Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.apress.com/9781430235125
http://apex.oracle.com/pls/apex/f?p=31517:1
http://www.amazon.de/Oracle-APEX-XE-Praxis/dp/3826655494
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Do they have an iPad or an iPad 2?
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I am reading some material about using VISA to control the data input/output to external device (in serial or parallel port). For some device, it needs a precise time sequence for handshaking to 30 nanosecond, I wonder if it is possible to control from OS level to make such short time interval? I am using Labview 2011 and Windows7 32 bitsGreetings phlins
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http://digital.ni.com/public.nsf/allkb/D37754FFA24F7C3F86256706005B9BE7
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Hello all of you out there!
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Hi,
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Dear master.
This is south korea. Sorry I'm poor english.
I saw example file. but I can't found bit control (Just found byte control)
My project is Z-stage control with step motor.
check sensor(limit)
then If true generate pulse CW (for Step motor P3.7)
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Message Edited by QuickNick on 07-04-2005 09:38 AM -
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Hello again,
System:
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how to make with CNiFile to have the corresponding instruction from C++ IO library:
cout << setprecision(8) << double(124.2378498749283);
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Best Regards,
Chris Matthews
National Instruments
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