Mark Scoville wrote:

>>From: Stephen D. Barnes
>>
>>Just an off the wall idea I had!
>>Does anyone know if Wonderware's InTouch can be used to interface with a
>>PIC?
>>    
>>
>
>Hi Stephen,
>
>Not off-the-wall at all! You can almost assuredly interface Wonderware
>InTouch to a PIC!
>
>One way is to make your PIC appear as a ModBus slave device on a serial
>port. I'm pretty sure InTouch supports ModBus protocol (as do most if not
>all other SCADA packages). I'd be surprised if you could find a SCADA
>package that doesn't support ModBus.
>
>I have interfaced PICs to GE Cimplicity as well as other SCADAs - no reason
>it shouldn't work with InTouch. Once you have the PIC behaving as a ModBus
>slave it is quite easy to interface to *ANY* SCADA that supports ModBus.
>
>The ModBus protocol spec is freely available on the web.
>http://www.modbus.org/specs.php
>
>Good luck.
>
>-- Mark
>
>
>
>  
>
Thank you for the info! This is the starting point I was looking for. 
Any pointers to anything already done? I would be interested in examples 
to study if they are available.

-- 
Regards,
Stephen D. Barnes

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