Labview 7.2 OPC VI's Work, but 8.0 VI's Give Error 1101

[lab4085]

I am a novice Labview 8.0 user.  I am trying to set up OPC connections to collect some data.  Another engineer sent me an OPC Data Socket VI created in Labview 7.2.  This one works, but when I try to duplicate the reading of the exact same data in 8.0, I am getting an Error 1101.

I would use the 7.2 functions, but they no longer show up on the Data Communication palette.  And, I don't know what to do to get the 8.0 versions beyond Error 1101.

Any help is appreciated.

[LV_Pro]

It sounds like you need to set up  the privileges using the DataSocket Server   http://digital.ni.com/public.nsf/allkb/6941F7A4DBBC1B0886256CEE0082A3CB

Don't remember if this changed from 7.x to 8.x and am not where I can look at my machine with 7 on it.   I've never seen a version 7.2, think that the last 7.x was 7.1.1

Message Edited by LV_Pro on 03-26-2007 03:56 PM

[lab4085]

Putnam,

Thanks very much for your reply.  I have been trying to figure out what and where to make the required changes to the Data Socket Server.  The confusing thing to me is that I can read from the machine which has the data just fine using the 7.1 function blocks.  But, if I add the 8.0 versions to do the same thing, the 8.0 blocks return Error 1101.  How could this be?

Where do I make the Data Socket Server changes? On the machine which is doing the reading, or on the machine which contains the data?  I have tried changing the machine which is doing the reading with no success.  But, perhaps, I didn't make the right changes.

Thanks again for your help,

Eric Hammel

Senior Engineer - DuPont

[Brian_K.]

Hi Eric,

Putnam was correct, the latest 7.X version is 7.1.1.  And did you try going to the DataSocket Server Manager like the knowledge base talks about?

1)  You may want to try to ping the other computer to make sure there is a viable connection.

2)  Have you tried running the DataSocket examples?  They can be found by going to Help-> Example Finder, and searching for DataSocket.  The ones that I use are DS Reader and DS Writer.