Again the embedlets specification is ALL about this, ie how to plug wide-fan
java enabled devices into backend J2EE databases.

Example wide-fan scenario we are working on

http://crusher.ssu.portsmouth.oh.us/~tkosan/java/embeddedjavascenario/

Again I encourage you join the email list just to listen in on the emerging
spec if you have not already done so ;-)

http://sourceforge.net/projects/embedlets/

Regards,
James Caska
www.muvium.com
'Java Bred for Embedded'


> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Orbit Communications
> Sent: Tuesday, January 28, 2003 7:03 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: PLC help
>
>
> I appreciate your comments but we are not wanting to develop a PLC. We are
> developing a specific product that will enhance our Wireless connectivity
> products. It will incorporate many functions not available in a PLC.
>
> We are interested in the mechanics of how PLC logic is presented to the
> controller in a typical PLC but have no intention of reinventing
> an existing
> product.
>
> Kind Regards
>
> David Huisman (CEO)
> -----------------------------------------------------------------------
> ORBIT COMMUNICATIONS - Wireless Solutions that Work
> (Telemetry, Control, Monitoring, Security, HVAC ...)
>
> Website : http://www.orbitcoms.com
> PO Box 4474 Lakehaven
> NSW 2259, AUSTRALIA
> Phone: 61-2-4393-3627
> Fax  : 61-2-4393-3685
> Mobile: 61-413-715-986
> ----- Original Message -----
> From: "Micro Eng" <micro_eng@HOTMAIL.COM>
> To: <PICLIST@MITVMA.MIT.EDU>
> Sent: Tuesday, January 28, 2003 1:07 AM
> Subject: Re: PLC help
>
>
> > First off...I've been doing PLC and ladder logic stuff for
> about 20 years.
> > Unless you have a buring desire to do this for fun, the product for a
> small
> > market might not be worth it, when you can buy all the pieces
> for what it
> > might cost to develop your own.  For a specific use controller, which is
> > what PIC's are great for, then it makes sense to build a board, etc but
> > write the code in C or assembly since it is for target use.
> >
> > Now, for PLC applications, the only reason to write ladder logic is
> legacy.
> > In other words, thats the way its always been done, and the control
> > engineers understand it (maybe some don't relize its a throwback to real
> > ladder logic of using relays and timers) so why mess with it?
> To get back
> > to the subject at hand, there is a company called Direct Automation that
> > sells the stuff pretty darn cheap, because its thier brand, albiet it it
> > probably a japanese remark, but you aren't paying the price for
> a Siemens
> or
> > AB unit.  Of course, some outfits demand an AB unit, because of the name
> > associated with it.  I've developed using AB software, Rockwell, GE,
> > Siemens, TI and a few other off brand things, and they are all about the
> > same.
> >
> > Just my .02 worth
> >
> >
> >
> > _________________________________________________________________
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