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Groups > comp.lang.forth > #52927

Re: I'm so conflicted...

From Walter Banks <walter@bytecraft.com>
Newsgroups comp.lang.forth
Subject Re: I'm so conflicted...
Date 2016-11-28 13:26 -0500
Organization Aioe.org NNTP Server
Message-ID <o1hstg$cuk$1@gioia.aioe.org> (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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On 2016-11-20 1:36 PM, Mark Wills wrote:
> No sounds like we're on the same wavelength, it's just that your idea
> of PLCs is from the 70s ;-)
>
> 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, date-time). Very very sophisticated indeed capable of
> monitoring many hundreds of IO and talking numerous protocols
> (including TVP/IP) simultaneously. Most of them these days can be
> programmed using the IEC61131 standard, which includes ladder,  FBD
> (function block diagrams), sequential function charts (SFC)
> Instruction List (a very simple assembler type language) and lastly
> ST (structured text) which is a mind of cross between c and pascal.
> A modern plc can run multiple programs each written in a different
> 61131 language. And because the language is standardised once toy
> can program one type of plc the toy van move to a different platform
> with ease. Unlike forth where every system is different. My
> favourite machines are the Siemens S7 range.
>
> They've come a long way since the 70s. Unlike Forth ;-)
>
IEC61131 has also evolved quite a bit. It is the common core of several
advanced languages. IOf you are interested in Mark's comments you might
also want to look at IEC61499 (2005) evolved from the work developed in
IEC61131.

This whole group of standards deals very well with parallel execution
environments.

A function may be located on the same processor a different processor or
a piece of specialized hardware. This is transparent to the application
developer.

w..

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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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