legacy plc - Electrician Talk - Professional Electrical Contractors Forum

Stardrill · 01-08-2009, 06:57 PM

Is anyone still using AB PLC 2 or PLC 3, or the old AB"1774" black box PLC?

p_logix · 01-08-2009, 07:48 PM

Quote:

Originally Posted by Stardrill

Is anyone still using AB PLC 2 or PLC 3, or the old AB"1774" black box PLC?

We don't have any PLC 2, 3, or 1774s but we still have the AI ICOM software for PLC 3. (We don't use it though). We used to use A.I. (Advanced Interface which is Dos Based for PLC 5s but then converted to rslogix 5)

personally I have never had experience working with 2s, 3s, or 1774 "black box". And by the way didnt you have to upload the program serially to a tapedeck, then download the tapedeck to the computer then you can view the program on the icom software? I have seen a recorder and tapes with plc2 programs on them but I was very young at the time.

And the PLC2 I have seen the mini PLC2 version of it at work in a pile of junk but never hook it up and messed with it.

What is your experience with them?

Mountain Electrician · 01-12-2009, 06:03 AM

Quote:

Originally Posted by Stardrill

Is anyone still using AB PLC 2 or PLC 3, or the old AB"1774" black box PLC?

Just the PLC 5, SLC family and ControlLogix.

Stardrill · 01-12-2009, 08:36 AM

Quote:

Originally Posted by p_logix

We don't have any PLC 2, 3, or 1774s but we still have the AI ICOM software for PLC 3. (We don't use it though). We used to use A.I. (Advanced Interface which is Dos Based for PLC 5s but then converted to rslogix 5)

personally I have never had experience working with 2s, 3s, or 1774 "black box". And by the way didnt you have to upload the program serially to a tapedeck, then download the tapedeck to the computer then you can view the program on the icom software? I have seen a recorder and tapes with plc2 programs on them but I was very young at the time.

And the PLC2 I have seen the mini PLC2 version of it at work in a pile of junk but never hook it up and messed with it.

What is your experience with them?

You are right the ab plcs used a cassette recorder and then a cartridge recorder for uploading and downloading programs.
Things got a lot easier when they introduced the data hiway
and we could use a pc to upload, download and edit the program.
I started using the PLC 2 in the early 1980s, did a lot of work with the
PLC 3, and then the PLC 5 in the early 1990s.

I've out of it for quite a while now,
what are some of the most commonly used plcs today?

MDShunk · 01-12-2009, 06:01 PM

I used to work on a plating line that ran off a PLC 1. The console was the size of a large suitcase, and weighed probably 50 pounds. Green screen monitor. It actually wasn't too bad to work on. We could repair the I/O cards pretty easily on the bench due to their large size.

p_logix · 01-12-2009, 07:39 PM

Quote:

Originally Posted by MDShunk

I used to work on a plating line that ran off a PLC 1. The console was the size of a large suitcase, and weighed probably 50 pounds. Green screen monitor. It actually wasn't too bad to work on. We could repair the I/O cards pretty easily on the bench due to their large size.

What the hell a PLC 1?

Never seen one, that thing must be ugly and huge

!!!!!!!!!!!

Quote:

Posted by Stardrill

I've out of it for quite a while now,
what are some of the most commonly used plcs today?

We use PLC5/40E, 80E and ControlLogix