picture

walters

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Feb 2005

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reusel

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• May 9, 2005

• #1

does someone have a picture of an very old PLC (i prefer a pic of the first PLC). im looking for it bout half an hour now but cant find a thing only newer models
please help me out

regards walters

 

seppoalanen

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Finland

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• May 9, 2005

• #2

Is Simatic S5-110A (1978) old enough or are you loocking for Allen Bradley ?

 

walters

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Feb 2005

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reusel

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• May 9, 2005

• #3

nah the siemens is old enough

 

Goody

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Huddersfield W Yorks UK

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• May 9, 2005

• #4

Here's an S5 that I ripped out this week (replaced by a nice compact Mitsibushi FX1n)

 

TConnolly

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• May 9, 2005

• #5

PLCs were first called just PCs (programmable controllers) prior to the advent of the IBM PC. “PLC” is actually an Allen Bradley trademark, so technically, they are the inventor of the PLC, PLC is now the “kleenex” of the controls industry. AB however did not make the first programmable controller. That distinction probably goes to the makers of the MOdular DIgital CONtroller, though there is some debate on that topic. At any rate the MODICON was the first practical industrial installation. I heard somewhere that it had only 128 words of memory or something like that and it was ridiculously slow - come to think of it, the three 984s we still have in operation here are kind of slow as well. I think it was a model 084. Hope that helps.

 

bernie_carlton

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• May 9, 2005

• #6

OK - I can't get the URL to paste correctly so Google "Dick Morley 084" and click on the entry for Society of Manufacturing Engineers

Oh, just go ahead and click on that link. I guess it will work now.

 

TConnolly

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• May 9, 2005

• #7

An OLD AB PLC3

http://images.google.com/imgres?imgurl=http://www.mdtsoft.com/public/labpix/ab2_3.jpg&imgrefurl=http://www.mdtsoft.com/public/labpix/lab.html&h=406&w=656&sz=50&tbnid=phzqpHdLxXsJ:&tbnh=84&tbnw=136&hl=en&start=4&prev=/images%3Fq%3DAllen%2BBradley%2BPLC%2B3%26hl%3Den%26lr%3D%26sa%3DN

 

Gerry

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Auckland

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• May 9, 2005

• #8

Alaric said:

An OLD AB PLC3

Click to expand...

The oldest bit of gear in that first photo is the 1774 (aka PLC1) in the top right corner. The thing just below is the "distribution panel" for the remote I/O (the only kind you could have). Its power supply (about the same physical size) must be out of the photo's frame.

 

darrenj

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Ottawa

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• May 11, 2005

• #9

here is one i pulled out last week..It has 2 input cards and 2 output cards alaong with 3 TTL cards that connect a touch panel. The rest of the cards are the CPU,Memory Scan monitor card's..has a wopping 16K memory..Not to shabby for its time..Ran like a charm daily for over 20 years 365 days a year..


These guys still make PLC's today...