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A quick forum search turns up a few names:
forum.linuxcnc.org/forum/search?query=al...te=all&childforums=1

Does anyone know of any Linuxcnc users in the central Alabama area?

Hi all,

I'm a Ph.D. student at the University of Alabama in Huntsville, and my research topic is SCADA cyber security. My goal is to find vulnerabilities in PLCs and try to fix them. However, its really hard to study something deep when you don't have the source code. Therefore, due to the lack of open source tools available in this field, I decided to create my own open source PLC. Then I realized that this could be useful for other researchers and professionals in the field, so I'm here sharing it with everyone.

The OpenPLC is a complete package with an editor and a compiler. The editor runs in Windows, Linux and MacOS and supports all the 5 IEC 61131-3 languages: ST, IL, LADDER, FBD and SFC. The compiler is responsible for getting the program written by the user and compile it to the platform in which the OpenPLC is running.

The OpenPLC currently runs on Raspberry Pi, Arduino, UniPi and also as a soft-PLC on Windows or Linux. If you guys have any of the mentioned boards laying down somewhere, it might be interesting to give the OpenPLC a try. More information can be found at the project's website: openplcproject.com

Let me know if you have any comments.


Thanks,

Thiago Alves

Can an 7i77 drive 24v relays directly? (Stock Bridgeport relays)

I have traced and labeled all my wiring, also I have the enables, releases and limits switches ready to go. I have driven all my axis with a 1.5v battery. My air solenoid is toast (seals gone) I need to buy another AE-1001, so far I haven't found a direct replacement - any suggestions? (I might just go with an 1:1 pulley and remove the entire assembly with a VFD, braking resistor, and single action air valve for the pneumatic brake)

Now it's time to decide on either a pico driven system or a Mesa driven system. I saw a earlier post by PCW stating they were catching up on orders. I really want to buy a 5i25 / 7i77 combo and probably a SS board. If PCW you are reading this post do you have the ability to ship a 5i25/7i77 plug and go kit without flashing the firmware so that the end user can? If that is a option then perhaps it can take the work load off of you and allow me to do it. I would be more than willing if it helps. (I'm in Alabama, USA!)

Also I don't know if others know or not, but Mesa did put a shipping disclaimer on their web store explaining they were behind on orders and approximate shipping time 4-6 weeks.

I'm probably going to pull the trigger on Mesa and go for it. Undecided

i appreciate all the help you gyas or trying to give me.
maybe i'm asking too much!
the only thing i know about a computer is how to run
my cad program.
if someone would be kind enough to let me call them
(on my dime) and walk me thru this step by step it
would help me a lot more than typing words that i don't
know the meaning of.
give me a convenient time to call you.
i live in the central time zone (ALABAMA).
thanks for your help

my email
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