Labview & testo toolbox

Hi,
I have a TESTO 350-S gas analyzer I wish to connect to a PC with Labview. I have downloaded the testo toolbox witch was very helpfull and even comes with the perfect example for me to test communication with de device I mentioned.
The gas analyzer is connected to the PC via serial cable.
The problem is that when I run the example VI, I get this error that is very common and general for what I have gathered here in the forums.
I get the message "Class not registered in testo serial init.vi", with the code -2147221164 and obviously I get no data from the 350-S.
From what I have read here, this is somehow related to excel?? or to active x controls from excel?
I am not a programmer and I have never worked with active x controls before, so I have no idea how to solve this.
Can someone help me, please?
Thanks in advance,
Antonio.
PS: I can post here everything necessary to replicate the error, if you wish... I get the error even in another machine that is not connected to the gas analyzer.
Solved!
Go to Solution.

I don't know if I can explain correctly what my problem is, but I don't think that anything is trying to open excel. I had to add a class witch is a .dll that I think is the driver for the gas analyzer. I followed the instructions on the toolbox pdf:
"3.2 National Instruments LabView
When changing version, it may be necessary to update the “Library” setting of all “Property” and
“Invoke” nodes. Proceed as follows:
Select the “Automation Refnum” symbol with the name “tcddka.Itcddk” on the front panel of a VI
(virtual instrument), cut it out and paste it in again. Set “tcddka.Itcddk” in the “Select ActiveX Class”
context menu.
Check the “Property” and “Invoke” nodes in the diagram overview. In the context menu (right mouse
button), you will either see “Features” (if it is a property node) or “Methods” (if is an Invoke node).
Ensure that the entry in the respective submenu is marked with a suitable method or property name."
After doing this, all errors in compilation desapeared but when I run the VI, I get error I mentioned earlier from the "Invoke node".
Maybe I have to do something to install or register the .dll
I think the VI is not initializing the driver, not in the machine that has connected the gas analizer, and not in this one from I am writing (laptop).
I have office 2007 in both machines and labview 8.6 in the first and 8.5 in my laptop.
Greetings and thanks for your answers.
Antonio
PS: I attached the files needed to verify what I'm talking about (the zipped file is the dll)
Attachments:
testo serial init.vi ‏59 KB
tcddka.zip ‏23 KB

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> Siddown wrote in message
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> > I've just discovered this newsgroup, and looking at the questions I'm
> > astonished at the sheer difficulty of doing the simplest thing in
LabView.
> > Downloading a special toolkit just to use a right mouse click?!!!
Messing
> > about with extra nodes to construct a simple ring? (see discontinuous
> > sliders below). More toolboxes to change cursors?
> >
> > This is the problem with graphical interfaces - they look so gorgeous
and
> > simple at the demo, with salesmen zap controls and graphs right left and
> > centre, but in the real world they're a nightmare!
>
>
>

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Screen shot 2012-06-22 at 12.22.02 AM.png ‏37 KB

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