Subject:
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Re: ControlLab 70909 Interface (9751?) VB.NET Class (DLL)
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Newsgroups:
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lugnet.dacta
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Date:
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Sun, 10 Jan 2010 21:22:35 GMT
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Viewed:
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17784 times
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In lugnet.dacta, Yves Levesque wrote:
> In lugnet.dacta, Jetro de Chateau wrote:
> >
> > Thanks a lot for sharing. I have one of these interfaces but my main problem
> > with it (using Robolab) has always been the incredibly slow response to inputs
> > (press a touch sensor and wait about 1 second for the motor to stop).
> > Can you tell me anything about response times in your program?
> >
> > Jetro
>
> Hi Jetro,
>
> This is the exact reason why I started this project.
> I did try Robolab (V5.1 I think) and was very disappointed about the time
> response.
>
> Of course, If people don't know about Visual Basic (VB), there is some learning
> if they want to use the proposed DLL in their own projects since it is NOT as
> easy as Lego Logo or any graphical programming langugage.
>
> But still, The VB certainly brings more power and you can build a pretty User
> Interface with buttons and lights on your computer screen...
>
> If you try my Installable Demos (Using the Setup), I did set the Scan Time to 50
> ms which is very Fast. If you open the source of the Demos in VB.NET, you can
> change this Scan Time to whatever you want.
>
> The Demo 2 will give you a good idea of the response time at 50 ms since the
> Output 1 follows the status of a switch connected to input 1.
>
> The installable versions (setup) of the demos don't request to have VB.NET
> installed, but you need to have MS .NET Framework 3.5 sp1 (free) which you might
> already have. If demo 2 or 3 don't install, proceed to the installation of Demo
> (1) first.
>
> I believe I've read somewhere that the CLI sends updates of its inputs about
> sixty times per second. So, I guess that a scan time of about 15-20 ms is the
> fastest you can get for a user program.
>
> Give some feedback if you try it.
>
> Thank you.
That sounds very promising! I have absolutely no idea about VB. My idea was to
build something for a display at a LUG event which would require the interface
to be connected to a laptop. Unfortunately, the only laptop I have that has a
serial port (the other 'big' problem of the interface) runs windows 98 and
cannot run XP - Will that be a problem?
Otherwise, do you think your VB application will work over a USB-Serial
converter? (robolab doesn't - I've tried half a dozen different adapters).
Jetro
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Message has 1 Reply:
Message is in Reply To:
 | | Re: ControlLab 70909 Interface (9751?) VB.NET Class (DLL)
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| (...) Hi Jetro, This is the exact reason why I started this project. I did try Robolab (V5.1 I think) and was very disappointed about the time response. Of course, If people don't know about Visual Basic (VB), there is some learning if they want to (...) (15 years ago, 10-Jan-10, to lugnet.dacta)
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