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 Post subject: Need a cheap little plc
PostPosted: Feb Sun 11, 2018 1:36 am 
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Joined: Oct Thu 20, 2016 3:54 am
Posts: 285
Location: Missoula mt
I use to use a ab pico for simple jobs, now ab does not sell or support them and no software. A real bummer as I paid a lot of money for the programing cord , (over 250.00 ) I just need 4 inputs and outputs nothing fancy anyone have a cheap plc in mind that has free software? I hate to go back to relays but I am POed at AB, I just might....WA7OPY


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 Post subject: Re: Need a cheap little plc
PostPosted: Feb Sun 11, 2018 2:23 am 
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Joined: Nov Mon 02, 2009 7:01 am
Posts: 3678
Location: Lincoln City, OR
Greetings to wa7opy and the Forum:

You might try the Nuts 'n Volts magazine web site.

They have had lots of articles in the past about various PICs and projects and sample code for them. Also lots of Arduino and Propeller projects and how-to articles.

You might have to subscribe to do a full search of the archives, but here's the URL:

http://www.nutsvolts.com/

Regards,

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Jim T.
KB6GM


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 Post subject: Re: Need a cheap little plc
PostPosted: Feb Sun 11, 2018 3:10 am 
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Joined: Aug Sun 02, 2015 7:34 pm
Posts: 886
Location: Yukon, OK USA
Automation Direct has their Click product line. Modest cost and FREE software. They have numerous models so pay close attention as the change in just one digit can mean either source output or sinking output. Bottom line is you can get a system that can be expanded with analog in/out and ethernet ports. I bought one and built a "trainer" with switches, LED's and a relay to learn ladder logic. Keep an eye on eBay and you can find them nearly new at a good price. You can buy the programming cable but I built one for almost nothing. First thing is to learn their product line and what the model number means as they have a large product lineup. Prices run $60 to $100.

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Rick
AB5ON

Forest Gumping through life


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 Post subject: Re: Need a cheap little plc
PostPosted: Feb Sun 11, 2018 4:47 am 
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Joined: Sep Thu 23, 2010 6:37 am
Posts: 11638
Location: Powell River BC Canada
I have a GE Mirco, that ran off software connected by a RS232.

I bought the extender to give it 10 more.

I think there is a misunderstanding regarding the difference between a PLC
and a project with a processor driving relays or other I/O.


Attachment:
ge micro plc.JPG
ge micro plc.JPG [ 15.84 KiB | Viewed 701 times ]

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de
VE7ASO VE7ZSO
Amateur Radio Literacy Club. May we help you read better.
Steve Dow
ve7aso@rac.ca


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 Post subject: Re: Need a cheap little plc
PostPosted: Feb Sun 11, 2018 5:14 am 
Member

Joined: Oct Thu 20, 2016 3:54 am
Posts: 285
Location: Missoula mt
Thanks I will look into it,It just upsets me to spend a lot of money just to have software go away, and turn it all into junk....WA7OPY


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 Post subject: Re: Need a cheap little plc
PostPosted: Feb Sun 11, 2018 6:45 pm 
Member

Joined: Sep Thu 23, 2010 6:37 am
Posts: 11638
Location: Powell River BC Canada
The software for the GE plc is on a 3.5 " disk that runs on DOS. It has ladder logic
function and force capability as well as i/o matrix table display. If you leave the plc
unplugged for too long, the program logic memory gets corrupted. Then you upload
it from the copy you have in the computer.

Some of my worst screamer nightmares go back to the hellish days of having PLC
executives wiped, and needing to be downloaded over the phone from Modicom 184/384.

_________________
de
VE7ASO VE7ZSO
Amateur Radio Literacy Club. May we help you read better.
Steve Dow
ve7aso@rac.ca


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