System design for remote control

I just wonder which tech of ni I should use.
My system is one data center and some remote DAQ site. The communication is through WAN.
It need to
- start stop and schedule DAQ card from remote data center
- send realtime data back for display
- report the DAQ running status, such as online.
- send history data from site pc to center database
there are many choice, such as tcp/ip, data socket server, shared varible, remote panel, remote vi server, web server.
May I know which one is more fit for the application?
Thanks a lot.

krishh wrote:
Hi all,
I am very new to Labview, but I have to deal with somewhat difficult problem of remotely controlling the Laser in next room. The PC I will be using has already built labview software to control the laser if laser is closeby. But the laser is next door (~200-300 feet), and the PC which controls the laser also have the labview software to control the laser. Please suggest me how should I start communicating from my first PC to the laser (may be using the laser labview software or not). To start with I would be glad to find some reads or demonstrative examples or any suggestion which will head me to right direction.
I hope for great help.
Regards
Krish
It would probably be a good idea to start a new message on this rather than continue in this message thread. It seems to be a different situation you are asking about then what the original poster was doing.
How does the PC communicate with the laser if it is close by? Is it a serial connection? ethernet connection? GPIB? something else. If it is serial, is it RS-232, RS-485, USB? 200-300 feet is too far for an RS-232 or USB connection. But there are numerous products on the market that will adapt those serial protocols to either an RS-485 wiring setup, or put it out over an ethernet connection. So you can go RS-232 to RS-485 on one end. RS-485 goes to 4000 feet (depending on baud rate). Then on the other end another adapter converts it back to RS-232. I have also used a remote USB hub that connects to a LAN connection, and with driver software installed on the PC, it turns that remote connection into virtual serial port connections.
These are good devices that have worked for me. But if they would work for you all depends on how the PC connects to the laser now.

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"Timothy Leerhoff" <[email protected]> wrote in message
news:VzUCd.15438$[email protected]..
> > unable to auto import
>
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>
> --
> Timothy Leerhoff
> Novell Support Forum Volunteer Sysop

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krishh wrote:
Hi all,
I am very new to Labview, but I have to deal with somewhat difficult problem of remotely controlling the Laser in next room. The PC I will be using has already built labview software to control the laser if laser is closeby. But the laser is next door (~200-300 feet), and the PC which controls the laser also have the labview software to control the laser. Please suggest me how should I start communicating from my first PC to the laser (may be using the laser labview software or not). To start with I would be glad to find some reads or demonstrative examples or any suggestion which will head me to right direction.
I hope for great help.
Regards
Krish
It would probably be a good idea to start a new message on this rather than continue in this message thread. It seems to be a different situation you are asking about then what the original poster was doing.
How does the PC communicate with the laser if it is close by? Is it a serial connection? ethernet connection? GPIB? something else. If it is serial, is it RS-232, RS-485, USB? 200-300 feet is too far for an RS-232 or USB connection. But there are numerous products on the market that will adapt those serial protocols to either an RS-485 wiring setup, or put it out over an ethernet connection. So you can go RS-232 to RS-485 on one end. RS-485 goes to 4000 feet (depending on baud rate). Then on the other end another adapter converts it back to RS-232. I have also used a remote USB hub that connects to a LAN connection, and with driver software installed on the PC, it turns that remote connection into virtual serial port connections.
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> On Thu, 27 Jan 2005 19:38:56 GMT, [email protected] wrote:
>
> > I have read TIDS that tell me I have to give rights at each
> > workstation object which I find hard to believe as its so time
consuming!
>
> depends.. if you have not eDir that's the case..
>
> but take a look at tools zenworks remote operators... which will help
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> lot in this case...
> --
>
> Marcus Breiden
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Hazel
>
> Please change -- to - to mail me.
> The content of this mail is my private and personal opinion.
> http://www.edu-magic.net

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System design for remote control

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