ActiveX Examples for PID Controller (or Other)

[diarmaede]

Hi All,

I've read many of the docs on building ActiveX VIs, but a picture is worth a thousand words.  If anyone can post pictures of block diagrams for VIs that set up and execute communications with ActiveX clients via a serial link, I would appreciate it greatly.

I am working with an Omega CNi3233-C24 PiD controller, but feel free to post block diagrams of any ActiveX VIs that communicate over a serial link.

Unfortunately, I cannot download code at work, so I would not be able to open any VIs that are posted.

Many thanks in advance for your help.

[nathand]

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diarmaede wrote:

I am working with an Omega CNi3233-C24 PiD controller, but feel free to post block diagrams of any ActiveX VIs that communicate over a serial link.

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There's no connection between ActiveX and serial communications.  ActiveX is used to talk to an application running on the local computer.  Serial communications are for exchanging data with a remote device.  What exactly are you asking about here?  If you have an ActiveX component that talks to a serial device, the implementation of the serial communication is up to the designer of the ActiveX component so an example for any device other than yours will not provide much help.  Have you already looked through the ActiveX examples provided with LabVIEW?  Can you provide a link to the component that you want to use, and documentation for its ActiveX interface?

[diarmaede]

You make a very good point.  The Omega software that I will shortly download contains the ActiveX drivers and should take care of the serial communications.  At least, that is how the DCOM driver software at my old company used to work.  So I am just looking to establish the connection to the Omega ActiveX drivers.

[smercurio_fc]

In that case you'd need to look at the documentation that Omega provides on how to use their ActiveX component. We haven't a clue as to how to use it, and the only thing we can tell you is basically what nathan said, and point you to general ActiveX examples.