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neramdaman
Participant

Join Date: Jun 2013
Posts: 3

Linux Based PLC Control

07/15/2013 8:27 AM

I am looking to find out what experience people have had with linux based plc control, specifically for Allen Bradley SLC-500 series PLCs, but any series will do. I am wondering what software you used, if you could compare it with RSLOGIX, how would you compare it, etc. The reason is wanting to go with a more stable operating system for the API that we use to interface with the PLCs, and I don't want to continue to depend on Windows.

What software is available? I looked up PLCIO, but it seems a lot pricier than RSLOGIX. Other hits seem to have come up dry.
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Oraka
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Join Date: Feb 2011
Location: New Zealand
Posts: 128
Good Answers: 5
#1

Re: Linux Based PLC Control

07/15/2013 10:48 PM

We have used Linux for >10 years to work with WAGO PLCs. It works fine. The UDP protocol we use should work with Allen Bradley. Why don't you ask them? We wrote the s/w in house.
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Carl_E
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Join Date: Nov 2009
Posts: 335
Good Answers: 63
#2

Re: Linux Based PLC Control

07/16/2013 1:09 AM

Somebody's done your review for you: http://linuxscada.info/
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jhhassociates
Guru

Join Date: Dec 2010
Location: North West England
Posts: 1170
Good Answers: 153
#3

Re: Linux Based PLC Control

07/16/2013 5:13 AM

Allen Bradley SLC-500 is quite old. It has a very large user base and this is why AB are still supporting it, but check with them how long they intend to continue support before you commit yourself to this system.

We use it for several clients. It is versatile and easy to use but the back-up from AB is patchy unless you pay their excessive fees for the on line support package. For very large applications use the 32 way I/O cards as the number of card slots (even with extension racks) can be a limiting factor. We have one user who has extended his requirements to the point that we are now removing 16 way I/O and replacing with 32 way, with all the hassle of rewiring in the control panel. Interfacing with HMI's is easier than Siemens but harder than B&R or Omron
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