Early Microprocessors in Industrial Microcomputers

Pete Lancashire pete at petelancashire.com
Wed Mar 9 11:30:44 CST 2016

Before uP's many used bit slice's I'm slowly putting together a
Westinghouse Numa-Logic 700 and 1200 setup. (BTW anyone have parts,
software, etc ?).

In my opinion Modicom was the best, did not need external cooling, A/B has
clout thus pretty much dominated. Did you know they used core at first and
some customers demanded it since it kept its ones and zeros when the power
went away ?

There's a few sites with URL's on early controllers, but I don't have any
written down Google Allen Bradly 1770,1771,1772,1773,1774

On Wed, Mar 9, 2016 at 8:49 AM, Jon Elson <elson at pico-systems.com> wrote:

> On 03/09/2016 09:28 AM, william degnan wrote:
>> Not a lot is said about early use of microprocessors in industrial
>> microcomputers.  Everything you read about is so home computing oriented,
>> but I believe actual sales would have been greater in the industrial space
>> 1974-77.
>> I compiled a quick thread on my site about the earliest use of
>> microprocessors in industrial microcomputers on my web site with links to
>> a
>> related article from EDN Microprocessor Design Series Volume II and scans
>> of Process Computer Systems product brochures.  PCS was a pioneer in
>> industrial micro-computing.
>> If anyone has info to share / correct please let me know and I will add to
>> the thread.
>> http://vintagecomputer.net/browse_thread.cfm?id=631
>> Allen-Bradley had a 16-bit mini they called the 7300 Industrial
> Processor.  They sold a lot of them in their 7320 (and 7340, 7360) CNC
> machine tool controls.  (I have one here.)  See :
> http://pico-systems.com/images/S_AB7320D.jpg
> The row of red LEDs at the bottom of the pic is the front panel of the
> 7300 CPU.  They had an industrial control bus that allowed you to connect a
> wide variety of interface boards, like encoder counters, DACs, digital
> inputs and outputs, etc.  It used battery-backed DRAM, and was made around
> 1978.
> Jon

More information about the cctech mailing list