I use a lot of Allen Bradley equipment.  Not because I want to, but 
because Allen Bradley is so embedded in US industry.
Then tend to be the most expensive and least friendly company to deal 
with yet American companies keep buying their stuff.
Most of their equipment is of good to excellent quality... however ....

It is the only company that I know of where you can buy a $3000 
controller, then call them to ask them some technical question
and they will REFUSE to talk to you about "THEIR" equipment until you 
also buy a technical service contract!

Dave Cole



On 5/19/2013 8:00 PM, Stuart Stevenson wrote:
> :) I purchased a keyboard (Allen Bradley indestructible). Guess what - it
> isn't. I just had to replace it. :)
> On May 19, 2013 4:40 PM, "Kip Shaffer"<k...@shafferhouse.org>  wrote:
>
>    
>> Just wanted to share a little success story with you all.
>>
>> This week I added three physical buttons to my mill.  They are large,
>> industrial buttons from Allen Bradley that should last forever.  They are:
>>
>> E-Stop - Red, latching, easy to hit
>> Pause - Amber, momentary, easy to hit
>> Run/Resume - Green, momentary, recessed
>>
>> The first two are trivial.  They interface directly to the appropriate
>> halui pins.
>>
>> Here's the problem. "Run" and "Resume" are two distinct operations. HAL
>> must decide which signal to generate based on the current state of the
>> system. In addition, halui must be in 'auto' mode in order to run the
>> program. It must be requested if it is not already selected. Furthermore,
>> timing can be a bit tricky. Continuing to assert halui.mode.auto,
>> halui.program.resume, or maybe even halui.program.run can result in screwey
>> behavior. An ideal solution is to assert these signals only until they take
>> effect.
>>
>> My solution (attached) was to:
>> - Select the appropriate action using 'and' components
>> - Use flipflop components to stop asserting the signal as soon as they take
>> effect
>> - Use the edge component to lock in the decision to ensure one 'run' or
>> 'resume' command from a single button-press event.
>>
>> I posted this on the wiki here:
>> http://wiki.linuxcnc.org/cgi-bin/wiki.pl?One_Button_Run/Resume
>>
>> Enjoy!
>> -Kip
>>
>>
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>> security visibility with the essential security capabilities. Easily and
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>>      
> ------------------------------------------------------------------------------
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> security visibility with the essential security capabilities. Easily and
> efficiently configure, manage, and operate all of your security controls
> from a single console and one unified framework. Download a free trial.
> http://p.sf.net/sfu/alienvault_d2d
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AlienVault Unified Security Management (USM) platform delivers complete
security visibility with the essential security capabilities. Easily and
efficiently configure, manage, and operate all of your security controls
from a single console and one unified framework. Download a free trial.
http://p.sf.net/sfu/alienvault_d2d
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