save file via network

[Klaipedos]

Hi

I'm trying to save a simple textsheet file (*.txt) via a small network.
I want to save data from my rt-engine (CVS1455) to my host computer.
My problem is, how do I define a filepath to save my txt-file?
Currently I'm using the "create new-file.vi" and the "write to file.vi". At the moment I only get error messages (errorcode 7). So I think my filepath is not correct. It looks like this: \\192.168.10.x\data\datafile.txt.
 
My host-pc has Windows XP installed and I use labview 7.1 for programming.

Hope someone can help me. Thanks

[Elsa Fung]

make sure you have permission to access the folder you're trying to access

try to:

1. make a new vi (don't have to save it)

2. put a path control on the front panel

3. paste the address you have \\192.168.10.x\

4. click on the little browse folder, it should open up the data folder in your host machine.  if not, that means you don't have access or the ip address is wrong.

[becktho]

Hm - that's interesting.

I just tried it using the ip of my computer ( \10.2.xx.yy\C ) and pushed the browse button - and LV did not react anymore.

In addition I was not able to terminate it.

[Elsa Fung]

really??... that's really bad...

did you have 1 '\' or 2 before your ip?  it worked on my LV 8 on WinXP...

** i think it freezes when the address is invalid... it did that when i mistyped my ip, also, when i put my computer ip in there and hit browse, it took me to my folder in the network instead of my computer, not sure if this is caused by the way the network's setup in my company or what... **

Message Edited by Elsa Fung on 01-18-2006 07:13 AM

[becktho]

I typed two "\" (I just left one out in the post to keep it as text).

I also tried it with network-name of my computer and I got the same result. LV froze, I could not close the window and I was not able to terminate the process either.

As you may have seen I use LV7.0 on WinXP professional.

[Elsa Fung]

hmm... did you try taking out the C drive part? (just use the \\xxx.xx.x.xx\)

LabVIEW crashes so easily...

[becktho]

Same problem as well - but never mind I'll switch to LV8.0 soon.

[smercurio_fc]

When you want to access a server this way you need to access a folder that's been shared and you access it like this:

\\serverName\sharedFolderName\directory1\directory2\filename.ext

serverName can be an IP address if you don't want to use the network name.

To access the C drive directly on a remote computer you need to access it like this: \\serverName\C$. See figure. This works on an NT-family of computer since C$ is one of those automatic administrative shares. Of course, to do this you need administrative access priviledge of on the target computer.

There is no difference in the method of access with respect to the version of LabVIEW.

[Klaipedos]

That is woth a try.

So, I use for the path:   \\192.168.10.x\d:\data\datafile.txt

I hope, I understand it correctly. And the folder "data" is shared for the network.

For now, thank you for the help

[smercurio_fc]

No, that's not correct. You cannot use "d:" in the path. You can't use the colon character at all. To directly access a drive remotely you must use the administrative share which is drive letter followed by a "$" character.

Thus:

If the folder "data" is a shared folder you would set the path to be: "\\192.168.10.x\data\datafile.txt". Note no reference to the 😧 drive.

If you want to access it directly via the D drive you would set the path to be: "\\192.168.10.x\D$\subdirectory1\subdirectory2\datafile.txt". So, if the "data" folder resides at "D:\data", then the path you would use would be "\\192.168.10.x\D$\data".

Generally speaking, for this sort of thing you should use shared folders rather than accessing a drive directly.

-Saverio