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June 23, 2018, 10:40:28 am


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 1 
 on: June 20, 2018, 06:20:38 pm 
Started by ATU - Last post by ATU
Right now I am just trying to find the protocol spec for the free tag names for Twincat 2 - ADS/AMS. I found the standard packet definition for memory locations but can't seem to locate how the tag names are specified. I've seen it somewhere on the internet, but can't find it on Beckhoff's site.

 2 
 on: June 20, 2018, 11:39:10 am 
Started by ATU - Last post by plcnut
I have not. I really like the speed of EtherCAT with Beckhoff RIO. We have a system running 50 microsecond scan times. Very cool!

 3 
 on: June 20, 2018, 11:32:51 am 
Started by jcottrill - Last post by BobO
Old bump...

Since we now have MQTT/IoT, the subject of JSON has come up. We have had short discussions on how we might approach that and already have a decent idea of how to solve it. If some of y'all that use JSON could give me a sense of what your typical records look like and how you use it, it would be helpful to coming up with a good set of tools.

 4 
 on: June 18, 2018, 05:37:08 pm 
Started by ATU - Last post by ATU
Anyone try talking EtherCat ADS/AMS protocol with a BRX?

 5 
 on: June 17, 2018, 08:36:33 pm 
Started by Garyhlucas - Last post by pbw
Thanks

 6 
 on: June 16, 2018, 06:55:31 pm 
Started by Garyhlucas - Last post by b_carlton
At Control Engineering - Home - Control - PLCs - Wastewater Treatment Plants ...

 7 
 on: June 15, 2018, 03:56:53 pm 
Started by Garyhlucas - Last post by pbw
Can you post a link? I can't seem to find it.
Thanks.

 8 
 on: June 15, 2018, 03:36:25 pm 
Started by Garyhlucas - Last post by Garyhlucas
Argh!
Just noticed the pictures we picked show the panels with wireway covers removed!  On the other hand I guess you can see they aren't overstuffed speghetti bowls overflowing from the wireways.

I designed this system from the ground up including the frame, plumbing, wiring schematics, panel layouts and PLC programming.  However I am really proud of the panel wiring.  I didn't do it, my field service guy wired it with me supervising. I've been wiring panels since the first one I built with my dad in our garage to unload rail cars full of vinyl powder for floor tile through a weigh scale system.  I was 11 at the time. This panel was Jerry Shaffer's first panel! A shame they didn't show the VFD panel below the PLC panel, being the second one it was even nicer.

By the way, the panels were completely modeled in SolidWorks (not the wires). We pulled a section view of the back panel and imported the drawing right into our Cam program, then drilled and tapped it in our CNC mill. It is really nice when all the holes line up.

BRX all the way in the next units. We were surprised the BRX hardware works out to $1100 less. We also switched valve vendors as the current actuated valves work well but need interposing relays. The new valves use solid state inputs so almost all of the relays shown in the panel go away too.  Big saving there as well. Sorry AD, they were your bases and relays!

Thanks for the kind comments.

 9 
 on: June 15, 2018, 12:26:57 pm 
Started by Garyhlucas - Last post by Controls Guy
Excellent article.  Informative and not puffery like a lot of OEM-written articles.  Gorgeous control panel too!   Cool

 10 
 on: June 14, 2018, 10:19:13 pm 
Started by Garyhlucas - Last post by BobO
Sweet! And congratulations!

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