What is the oldest PLC system you have running?
- Thread starter JeffKiper
- Start date
Oldest still running is 2 machines with AB PLC 2/16's.
Last year we replaced a Texas Instruments model 305, that we pulled the program out of using the embedded hand terminal.
Also replaced a GE Fanuc 90-30 last year.
Prior to that we replaced the AB PLC 2/30 dinosaur.
Last year we replaced a Texas Instruments model 305, that we pulled the program out of using the embedded hand terminal.
Also replaced a GE Fanuc 90-30 last year.
Prior to that we replaced the AB PLC 2/30 dinosaur.
Liam Moran
Lifetime Supporting Member
The TI305 was a rebadged Koyo,was previously marketed by General Electric as the Series One.They are still available through Automation Direct.
Liam Moran
Lifetime Supporting Member
I Think TI 164, does that ring a bell?
Liam Moran
Lifetime Supporting Member
I remember seeing these in the wild years ago, never worked on them.
janner_10
Lifetime Supporting Member
Replaced a few of these old Moog Parison Controllers now, guy in Ireland had 6 Blow Molders with them on and they all started to fail at the same time. These were from an old Graham Engineering 10-Head Blow Molder. Fascinating to watch, but all done so easily in a PLC and HMI these days.
Last one we did was a water cooler bottle manufacturer in the States, he spent 6 months looking for someone to take it on and found us in the UK.
We were 7 days into a 2 week job and had to fly back to the UK because of the Covid-19, I managed to complete the job via the E.WON and some web cams the customer had bought, placed around the machine and a great many hours talking with the customer on Whatsapp.
Vid for the full flashing light effects: https://youtu.be/aHv2WKJlSng
Last one we did was a water cooler bottle manufacturer in the States, he spent 6 months looking for someone to take it on and found us in the UK.
We were 7 days into a 2 week job and had to fly back to the UK because of the Covid-19, I managed to complete the job via the E.WON and some web cams the customer had bought, placed around the machine and a great many hours talking with the customer on Whatsapp.
Vid for the full flashing light effects: https://youtu.be/aHv2WKJlSng
Ronnie Sullivan
Member
I go to a National grid, gas fired electricity power station that produces megaWatts of electricity.
They have a Toshiba plc (EX40 with extensions) running the gas and air valves - like a huge carburettor.
I have offered to upgrade it many times but they have a spare. Anything goes wrong with it, they swap it out and send the faulty one to me to repair.
They have a Toshiba plc (EX40 with extensions) running the gas and air valves - like a huge carburettor.
I have offered to upgrade it many times but they have a spare. Anything goes wrong with it, they swap it out and send the faulty one to me to repair.
I think Modicon was one of the first controllers it was designed by Dick Morley it was made up of "MOdular DIgitial CONtroller." I believe these were in use in the very late 60's I replaced one that was fitted in 1972 (I think), it was replaced in 1997 with a Mitsubishi A series.
thingstodo
Member
Ah yes. We ... replaced .. 4 pdp 11/03 (I think) that were actually mounted on mobile platforms (pallet stackers) ... the supervisory system was a PDP 11/70
I had forgotten about that. That was likely installed about the time that the original Allen Bradley Black Box PLC was released (1977-ish?)
Thanks for the walk down memory lane!
drbitboy
Lifetime Supporting Member
Wasn't DEC one of the two companies, the other being Bedford Associates, that responded to GM Hydramatic's "proto-PLC" RFP ca. 1968?
Perhaps it's an urban legend, but I heard that Bedford was chosen over DEC to keep GM IT out of the process, because, if DEC were chosen, then it would be a computer purchase.
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