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Re: I'm so conflicted...

From Paul Rubin <no.email@nospam.invalid>
Newsgroups comp.lang.forth
Subject Re: I'm so conflicted...
Date 2016-11-20 11:15 -0800
Organization A noiseless patient Spider
Message-ID <87twb2arom.fsf@nightsong.com> (permalink)
References (7 earlier) <5d84a748-6d02-4133-bd34-4601fe7a44cf@googlegroups.com> <65f97f06-8302-411f-b001-afbd6f890d6c@googlegroups.com> <281d7b0a-992e-4e18-96f9-e389848eb5e8@googlegroups.com> <cc94f80b-d612-4877-8670-2dfbb9a8d423@googlegroups.com> <36fdf559-726d-48f1-a15d-c37683ed2d7c@googlegroups.com>

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Mark Wills <markwills1970@gmail.com> writes:
> The PLC I used to use (Allen Bradley ControlLogix) had 32 megabytes of
> RAM. They are capable of millions of instructions per second, and have
> fully typed languages (booleans,bytes,ints, dint, reals, floats,...

Interesting -- is that still different from what we would usually call a
computer instead of a PLC?

I had thought the original PLC's were implemented with relays or simple
switching elements and were programmed with ladder logic, which
persisted into the microprocessor era because control engineers
understood it, it had good verification methods, and it was hard to go
wrong because its range was so limited.  Once you get away from that,
are you not doing just ordinary programming?

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Thread

I'm so conflicted... Mark Wills <markwills1970@gmail.com> - 2016-11-11 03:47 -0800
  I'm so conflicted... foxaudioresearch@gmail.com - 2016-11-11 04:37 -0800
  Re: I'm so conflicted... Howerd <howerdo@yahoo.co.uk> - 2016-11-11 05:29 -0800
    Re: I'm so conflicted... JUERGEN <epldfpga@aol.com> - 2016-11-11 05:33 -0800
    Re: I'm so conflicted... JUERGEN <epldfpga@aol.com> - 2016-11-11 05:35 -0800
    Re: I'm so conflicted... rickman <gnuarm@gmail.com> - 2016-11-11 20:02 -0500
      Re: I'm so conflicted... jim <anon@example.com> - 2016-11-12 10:59 +0000
        Re: I'm so conflicted... rickman <gnuarm@gmail.com> - 2016-11-12 11:21 -0500
          Re: I'm so conflicted... jim <anon@example.com> - 2016-11-12 21:30 +0000
            Re: I'm so conflicted... rickman <gnuarm@gmail.com> - 2016-11-12 23:18 -0500
              Re: I'm so conflicted... jim <anon@example.com> - 2016-11-13 12:28 +0000
                Re: I'm so conflicted... Paul Rubin <no.email@nospam.invalid> - 2016-11-13 10:50 -0800
                Re: I'm so conflicted... jim <anon@example.com> - 2016-11-13 19:14 +0000
                Re: I'm so conflicted... rickman <gnuarm@gmail.com> - 2016-11-13 23:11 -0500
                Re: I'm so conflicted... jim <anon@example.com> - 2016-11-14 09:44 +0000
        Re: I'm so conflicted... "Robert L." <No_spamming@noWhere_7073.org> - 2016-11-20 01:51 +0000
      Re: I'm so conflicted... Howerd <howerdo@yahoo.co.uk> - 2016-11-12 10:32 -0800
        Re: I'm so conflicted... rickman <gnuarm@gmail.com> - 2016-11-12 13:52 -0500
          Re: I'm so conflicted... Howerd <howerdo@yahoo.co.uk> - 2016-11-12 11:55 -0800
            Re: I'm so conflicted... rickman <gnuarm@gmail.com> - 2016-11-12 23:19 -0500
              Re: I'm so conflicted... Howerd <howerdo@yahoo.co.uk> - 2016-11-13 18:16 -0800
                Re: I'm so conflicted... rickman <gnuarm@gmail.com> - 2016-11-13 23:14 -0500
                Re: I'm so conflicted... jim <anon@example.com> - 2016-11-14 09:51 +0000
                Re: I'm so conflicted... Howerd <howerdo@yahoo.co.uk> - 2016-11-14 04:04 -0800
                Re: I'm so conflicted... Mark Wills <markwills1970@gmail.com> - 2016-11-15 03:11 -0800
                Re: I'm so conflicted... "Robert L." <No_spamming@noWhere_7073.org> - 2016-11-20 23:50 +0000
        Re: I'm so conflicted... albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-11-12 20:11 +0100
  Re: I'm so conflicted... "HAA" <someone@microsoft.com> - 2016-11-12 00:34 +1100
  Re: I'm so conflicted... hughaguilar96@gmail.com - 2016-11-11 16:19 -0800
    Re: I'm so conflicted... Howerd <howerdo@yahoo.co.uk> - 2016-11-12 10:34 -0800
      Re: I'm so conflicted... november.nihal@gmail.com - 2016-11-12 12:35 -0800
        Re: I'm so conflicted... "Elizabeth D. Rather" <erather@forth.com> - 2016-11-12 11:46 -1000
          Re: I'm so conflicted... Howerd <howerdo@yahoo.co.uk> - 2016-11-12 15:23 -0800
            Re: I'm so conflicted... hughaguilar96@gmail.com - 2016-11-12 18:13 -0800
            Re: I'm so conflicted... rickman <gnuarm@gmail.com> - 2016-11-12 23:23 -0500
              Re: I'm so conflicted... "Elizabeth D. Rather" <erather@forth.com> - 2016-11-12 20:55 -1000
            Re: I'm so conflicted... "Elizabeth D. Rather" <erather@forth.com> - 2016-11-12 20:46 -1000
              Re: I'm so conflicted... Paul Rubin <no.email@nospam.invalid> - 2016-11-13 01:06 -0800
                Re: I'm so conflicted... Mikael Nordman <oh2aun@gmail.com> - 2016-11-13 12:59 -0800
                Re: I'm so conflicted... Howerd <howerdo@yahoo.co.uk> - 2016-11-13 18:27 -0800
                Re: I'm so conflicted... Mikael Nordman <oh2aun@gmail.com> - 2016-11-13 20:34 -0800
              Re: I'm so conflicted... Howerd <howerdo@yahoo.co.uk> - 2016-11-13 17:56 -0800
                Re: I'm so conflicted... "HAA" <someone@microsoft.com> - 2016-11-14 14:53 +1100
                Re: I'm so conflicted... "Elizabeth D. Rather" <erather@forth.com> - 2016-11-13 22:04 -1000
          Re: I'm so conflicted... albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-11-13 10:51 +0100
  Re: I'm so conflicted... Mark Wills <markwills1970@gmail.com> - 2016-11-14 03:10 -0800
    Re: I'm so conflicted... "HAA" <someone@microsoft.com> - 2016-11-15 01:03 +1100
      Re: I'm so conflicted... Mark Wills <markwills1970@gmail.com> - 2016-11-14 07:31 -0800
        Re: I'm so conflicted... foxaudioresearch@gmail.com - 2016-11-14 13:29 -0800
          Re: I'm so conflicted... Mark Wills <markwills1970@gmail.com> - 2016-11-15 03:02 -0800
            Re: I'm so conflicted... albert@cherry.spenarnc.xs4all.nl (Albert van der Horst) - 2016-11-15 13:39 +0100
        Re: I'm so conflicted... hughaguilar96@gmail.com - 2016-11-15 18:22 -0800
          Re: I'm so conflicted... Mark Wills <markwills1970@gmail.com> - 2016-11-16 01:32 -0800
            Re: I'm so conflicted... hughaguilar96@gmail.com - 2016-11-16 13:00 -0800
              Re: I'm so conflicted... hughaguilar96@gmail.com - 2016-11-16 13:04 -0800
              Re: I'm so conflicted... Mark Wills <markwills1970@gmail.com> - 2016-11-16 13:42 -0800
                Re: I'm so conflicted... hughaguilar96@gmail.com - 2016-11-17 12:28 -0800
                Re: I'm so conflicted... Raimond Dragomir <raimond.dragomir@gmail.com> - 2016-11-17 22:14 -0800
                Re: I'm so conflicted... Mark Wills <markwills1970@gmail.com> - 2016-11-19 15:01 -0800
                Re: I'm so conflicted... hughaguilar96@gmail.com - 2016-11-19 16:55 -0800
                Re: I'm so conflicted... Mark Wills <markwills1970@gmail.com> - 2016-11-20 10:36 -0800
                Re: I'm so conflicted... Mark Wills <markwills1970@gmail.com> - 2016-11-20 10:43 -0800
                Re: I'm so conflicted... Paul Rubin <no.email@nospam.invalid> - 2016-11-20 11:15 -0800
                Re: I'm so conflicted... Mark Wills <markwills1970@gmail.com> - 2016-11-20 13:57 -0800
                Re: I'm so conflicted... Walter Banks <walter@bytecraft.com> - 2016-11-28 13:26 -0500
          Re: I'm so conflicted... Jan Coombs <jenfhaomndgfwutc@murmic.plus.com> - 2016-11-16 10:25 +0000
            Re: I'm so conflicted... hughaguilar96@gmail.com - 2016-11-16 12:33 -0800

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