topic Re: How to use two activex class objects in same vi in LabVIEW

How to use two activex class objects in same vi

9019745346 — Mon, 23 Jan 2012 08:52:48 GMT

I am using labview to read ECU data from INCA software .INCA providing COMTOOL API(incacom.dll). I am using ACTIVEX for communication between INCA & Labview. My problem is If I have used single activex class object I am able to read Inca version, getting the database path etc. If I have used two activex class in same vi (one to open Inca & other one is to read the folder structure) I am not getting output.I have attached snapshot for referance

Re: How to use two activex class objects in same vi

smercurio_fc — Mon, 23 Jan 2012 18:03:56 GMT

There is no general issue with using multiple ActiveX classes in the save VI. This sounds more like an issue with the specific ActiveX component that you are using. I would suggest contacting the component vendor with this question.

Re: How to use two activex class objects in same vi

9019745346 — Tue, 24 Jan 2012 03:03:23 GMT

Re: How to use two activex class objects in same vi

.aCe. — Tue, 24 Jan 2012 03:46:29 GMT

As you are only using references one after the other, you could try closing references before opening the other.

Re: How to use two activex class objects in same vi

9019745346 — Tue, 24 Jan 2012 04:12:43 GMT

i have closed the reference before opening another reference .

Re: How to use two activex class objects in same vi

.aCe. — Tue, 24 Jan 2012 04:28:14 GMT

It wasnt in the first two images you posted, or I couldnt see it anyway! That was the only reason.

Did you try the database block on its own, just to confirm that it is working?

Re: How to use two activex class objects in same vi

9019745346 — Tue, 24 Jan 2012 06:47:44 GMT

no its not working

Re: How to use two activex class objects in same vi

9019745346 — Tue, 14 Feb 2012 03:56:32 GMT

Finally I have achieve the communication between INCA & Labview Now I am able to read the calibration & measurement.

Re: How to use two activex class objects in same vi

sberglun — Fri, 24 Jan 2014 15:10:35 GMT

Do you want to share you solution?

I'm in the same situation. Can read a value from INCA but not a table. Also would like to write value to a table further on.