James,
After reading your PLC posts I spent a significant amount
of time on the net researching the current state of the PLC
world. It has been a number of years since I did any
serious PLC programming and it was interesting to see what
new things have been developed.
And... I think I hit a mother lode of information that
looks like it could be very helpful to the Embedlets
effort.
There is an organization called PLCopen and they have
developed a significant number of standards (both graphical
and non-graphical) for things like ladder logic and
functional block diagrams (FBDs). The FBDs have some
striking similarities to what I imagine Embedlets will look
like and they seem to have developed solutions to problems
that I personally was struggling with.
Here is a quick plcopen overview:
http://www.plcopen.org/intro_iec/intro_iec.htm
and here is the main site:
http://www.plcopen.org
I am going to start studying their materials and also join
their email list. I am looking forward to 'picking their
brains' and I am also interested in getting their reaction
to possibly having their standards implemented in
platform-independent Java.
Thanks for the tip!
Ted
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