Comments (6)
engrx2019
commented on August 29, 2024
Hi Chetan,
I created a dll in visual basic which deals with CFX. Than I used the dll
in labview.
Regards
Imran Ahmad
Sr. Electrical\Software Engineer
Specialty Coating Systems
317-244-1200 ext. 0292
From: "cmalpure" <[email protected]>
To: "IPCConnectedFactoryExchange/CFX" <[email protected]>
Cc: "Subscribed" <[email protected]>
Date: 06/01/2020 11:54 AM
Subject: [IPCConnectedFactoryExchange/CFX] CFX for LabVIEW (#83)
This Message originated outside your organization.
Hi,
I am new to CFX standard and still trying to get a handle on the basics. I
read through the CFX Demo and installed the SDK through NuGet Package
available on Github. If I understand correctly the CFX SDK (a .Net
library) is available that can be called in other software platforms. I am
primarily a LabVIEW developer and want to implement CFX messaging through
LabVIEW.
So far I have been trying to get the CFX Demo working from LabVIEW but I
have not been able to connect to the host site. Maybe I am calling the
wrong Properties/Methods. I was wondering if anyone here has used/called
the SDK from LabVIEW and successful in getting the Demo to work. If yes, I
would appreciate if you can share your LabVIEW code OR give suggestions to
help me get through the issue.
Thanks,
Chetan
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cmalpure
commented on August 29, 2024
Hi Imran,
Thank you for your response. I was under the assumption that one could use the CFX dll (that takes care of the CFX) from the SDK and use it in LabVIEW. The dll you created, is it different than the dll that comes with the NuGet Package?
~Chetan
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engrx2019
commented on August 29, 2024
Hi Chetan,
I think you should be able to call functions directly from Labview, but I
did not try it.. It was easier for me to creating a dll.
Regards
Imran Ahmad
Sr. Electrical\Software Engineer
Specialty Coating Systems
317-244-1200 ext. 0292
From: "cmalpure" <[email protected]>
To: "IPCConnectedFactoryExchange/CFX" <[email protected]>
Cc: "engrx2019" <[email protected]>, "Comment"
<[email protected]>
Date: 06/01/2020 01:24 PM
Subject: Re: [IPCConnectedFactoryExchange/CFX] CFX for LabVIEW
(#83)
This Message originated outside your organization.
Hi Imran,
Thank you for your response. I was under the assumption that one could use
the CFX dll (that takes care of the CFX) from the SDK and use it in
LabVIEW. The dll you created, is it different than the dll that comes with
the NuGet Package?
~Chetan
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cmalpure
commented on August 29, 2024
Hi,
I have followed the instructions given in the below link to install cfx sdk.
http://www.connectedfactoryexchange.com/CFXDemo/sdk/html/cfb57aac-b696-4c6c-b94b-f034b37daf26.htm
As given in the Getting Started page in the above link, I intended to publish a channel to a CFX broker and send a message to the Demo page by following the steps. The only difference is that I am calling the SDK (.Net library and its objects) from LabVIEW instead of using C# in Visual Studio. However, I have been unsuccessful in achieving the task and I keep getting a "NullReferenceException" error at the AddPublishChannel method.
I have gone through the Reference guide to understand the CFX functions and tasks as best as I could. As I mentioned I am new to the CFX standard. I have attached a screenshot of my LabVIEW code that calls the SDK functions through .Net constructor node.
I would greatly appreciate if anyone can point me to the right direction and let me know what I am missing.
Thanks,
Chetan
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cmalpure
commented on August 29, 2024
I am still getting a Null Reference Exception Error at the AddPublishChannel method. In regards to that a follow up question:
In the AmqpCFXEndpoint class, I noticed there are two AddPublishChannel methods:
- AddPublishChannel(AmqpChannelAddress, String, X509Certificate)
- AddPublishChannel(Uri, String, String, X509Certificate)
Which one of the above two methods are called in the example code given in the "Getting Started with SDK page"? Here is the link to that page file:///C:/Projects/CFX-master/CFX-master/docs/html/cfb57aac-b696-4c6c-b94b-f034b37daf26.htm
What value should go in the argument "String" of each of the above methods?
In LabVIEW, here are the two AddPublishChannel methods as shown in screenshot:
I look forward to the responses.
Thanks,
Chetan
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HaythemLtifi
commented on August 29, 2024
Hello , i am too trying to set cfx in labview and i am stuck , can i know what your results are? did you manage to pull it off?
Thank you
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