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From: "Rufus V. Smith"
References: <firstname.lastname@example.org> <email@example.com>
Subject: Re: Avoiding PLCs
Date: Wed, 16 Oct 2002 11:43:46 -0400
X-Newsreader: Microsoft Outlook Express 5.50.4807.1700
"Walter Driedger" wrote in message
> When I specify that all PLCs on my project shall be make and model XYZ, you
> can be sure I will not accept some customized PC on a board with programming
> in C.
> Your suggestion of using a PC with custom programming is EXACTLY why we
> insist on a specific make and model of PLC in the first place. One more
> time, WE DO NOT WANT SPECIALIZED HARDWARE AND WE DO NOT WANT SPECIALIZED
Remember that extreme creativity or extreme incompetence or both can create
unmaintainable code in any environment. Selection of PLC only eliminates a
( You may also get a less-than-optimum result if the programming contractors
are not versed in the PLC you specify. Maybe it's better to let them create
their solution on a platform they know intimately. Or select a different contractor.)
To be really thorough you should have coding and documentation standards
and possibly even a code review with those who will maintain said machinery.
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