Experimental Physics and
Industrial Control System
| 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 <2010> 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 | Index | 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 <2010> 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
| <== Date ==> | <== Thread ==> |
|---|
| Subject: | Options for reviving old Allen Bradley PLC implementations |
| From: | "Chestnut, Ronald P." <[email protected]> |
| To: | "[email protected]" <[email protected]> |
| Date: | Fri, 5 Nov 2010 12:30:47 -0700 |
We have a number of old Allen Bradley PLC implementations here at SLAC. One of these uses a Data Communication Card (DCM) in VME is connected to the SLC5 SLC500s. One path we are considering is using an RSLogix PLC (which has good EPICS support) as the
master PLC, and slaving the SLC5 PLC to that. It turns out that there exists a package to translate the ladder logic from SLC500 to RSLogix.
Another group here is asking the following:
“We have some old SLC 5/04 PLCs from Allen Bradley that we wanted to make EPICS compatible. I found a third party SLC module that talks Ether/IP:
Will this module work to provide the EPICS support? “
Another piece of information is from Ernest Williams: He warned us against the direct SLC-50x EPICS driver support, since it uses its own protocol (DFI?) and has a poor reputation and poor support.
So the questions to the community are
How are you reviving old PLC support? What has or has not worked? What do you recommend?
Ron Chestnut
- Replies:
- RE: Options for reviving old Allen Bradley PLC implementations Al Honey
- Re: Options for reviving old Allen Bradley PLC implementations jun-ichi.odagiri
- Re: Options for reviving old Allen Bradley PLC implementations Maren Purves
- RE: Options for reviving old Allen Bradley PLC implementations Bryce Karnaghan
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