[DUG] A change in upgrade policy coming from Embarcadero

[Neven MacEwan]

Kyley

A PLC is a "Programmable Logic Controller" a piece of hardware that has 
an embedded language to control industrial machinery

Over the years there has been a merging of PLC's and Process Computers 
(PLC's evolved from the original relay logic, in fact early ones you 
programmed in
"ladder" logic), there was a "gap" between PLC's and process computers 
that you could close with a general programming language (I wrote 
something in Turbo Pascal to
control a "flying shear")

But things are more specialised now, The interfaces have always been 
problematic (lack of standards and companies not wanting to interoperate)

Neven
> Maurice,
> Rockwell PLC is quite a specialised system isn't it? its not as 
> generic as delphi.. Just a curiosity, not a comparison
>
> On Sat, Sep 19, 2009 at 10:55 PM, Maurice Butler 
> <likemagic at quicksilver.net.nz <mailto:likemagic at quicksilver.net.nz>> 
> wrote:
>
>     Like wise - professional Software developer was self employed for
>     10 years, now receiving income by salary from a large
>     international company.
>      
>     I wrote an application using D3, which is still running reliably
>     in a 24x7 manufacturing envionment, weigh and labelling product
>     every 3 seconds, and stuffing data into an oracle database. The
>     qualification is that it either works or it doesn't, if it doesn't
>     you don't get any more work. The work that i put in to the
>     development of the application has ment it has run on win98,nt 2k,
>     xp without any changes. It is also the bench mark that new
>     projects are compared to. I now work for the company that i wrote
>     that application for and have been tasked with upgrading or
>     replacing to include a lot more functionality.
>      
>     After downgrading to 2005 I redeveloped my application to use a
>     Rockwell PLC for another client and gave delphi the boot,
>     subsequently all installations and varations of it have ment my
>     money has gone to rockwell for there hardware and software.
>      
>     I was looking at upgrading my copy of Delphi - but to be honest I
>     may well be better off sticking with the Rockwell PLC, not as nice
>     to code but reliable, occasional  bugs that are fixed without
>     major drama. Espcially if I run into show stoppers like Delphi 2005
>      
>     Maurice
>      
>     -----Original Message-----
>     *From:* delphi-bounces at delphi.org.nz
>     <mailto:delphi-bounces at delphi.org.nz>
>     [mailto:delphi-bounces at delphi.org.nz
>     <mailto:delphi-bounces at delphi.org.nz>] *On Behalf Of *Paul A Norman
>     *Sent:* Saturday, 19 September 2009 1:09 p.m.
>     *To:* NZ Borland Developers Group - Delphi List
>     *Subject:* Re: [DUG] A change in upgrade policy coming from
>     Embarcadero
>
>         Dear Richard,
>          
>         " I however, am a professional software developer."
>          
>         I am sure that you are, infact from everything I have heard of
>         you and your work people should seriously consider looking at
>         you and your consultancy
>         for any work espeically in areas  of complexity that need
>         special expertise in advanced programing.
>          
>         What I am trying to address here is the changed busines model
>         that the Delphi Community is being asked to swallow hook line
>         and sinker.  It is true as you say that E need to make money.
>         What we and they are needing to look at is the model by which
>         they wish to do so, realizing that we are their cash cows!
>          
>         Now what is a "profesional programmer", just one who receives
>         their income by invoicing directly for progranmming work?
>          
>
>
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>
>
>
> -- 
> Kyley Harris
> Harris Software
> +64-21-671-821
> ------------------------------------------------------------------------
>
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