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Old 06-20-2012, 11:03 PM   #11
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I'm in no rush, my local HBS has a complete, all manual, single tier HERMS system for $1500 (Keggels, pumps, valves chiller, etc.) that I am going to get. I am planning on taking this system and automating it as much as the budget (aka wife) will allow.

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Hi

Spend some time understanding and working with the setup before you try to automate it....

Bob
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Old 06-21-2012, 01:24 PM   #12
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Hi

Spend some time understanding and working with the setup before you try to automate it....

Bob
Good advice Bob! I brewed my first batch on Saturday and using the new setup left me thinking about many things.
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Old 06-22-2012, 01:26 PM   #13
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Hi

If you are like most of us around here, a given configuration of "stuff" will last about six months before there's a "need to modify".

Bob

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Old 06-22-2012, 02:02 PM   #14
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CB,
six months? I havent been able to finish my system without modifying it already.... Seems every time I get close I find a glitch or hang up and when I address that I end up changing a component or sensor to eliminate the stumbling block completely. I think brew controls evolve over time... I would strongly recomend any new brewer building a control system to insure that you build a very robust base system with lots of room for expansion, because inevatably things will get changed, adjusted and improved over time. Mine sure has changed from where I originally started. Just a thought or two from a tinkerer builder.
Wheelchair Bob

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Join the Automation sub forum in Electric brewing for a discussion of components and control systems. I did!!!!

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Old 06-22-2012, 02:37 PM   #15
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So true! I think I spend as much time modifying and building new stuff as I do actually brewing, I'm never satisfied. But that's half the fun!!

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Old 06-23-2012, 05:54 AM   #16
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You could try a phidget board. It is a simple usb IO system for PC. I have used them in the past with Visual Basic interfaces that work great and simple to do. You can even use a VB set in excel to really ramp up your control options. Much cheaper than a PLC.

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Old 06-23-2012, 03:25 PM   #17
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Is there a reason why it wouldn't be possible to control an SSR with the control signal through either a parallel or serial interface? Much like CNC systems use the same signals to control a driver board? Use a one wire interface for temperature monitoring and something as simple as a Bash or Perl script to control the temperature.

There has to be a reason it hasn't been done, but I can't think of one. Then again my thinker seems to be working slowly these days.

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Old 06-23-2012, 08:16 PM   #18
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Is there a reason why it wouldn't be possible to control an SSR with the control signal through either a parallel or serial interface? Much like CNC systems use the same signals to control a driver board? Use a one wire interface for temperature monitoring and something as simple as a Bash or Perl script to control the temperature.

There has to be a reason it hasn't been done, but I can't think of one. Then again my thinker seems to be working slowly these days.
Hi

It's been done many a time.

The gotcha when running high power or fire is a system crash. Making a simple parallel port setup crash proof can be a bit of a pain. It can indeed be done, but it's not as easy as it looks at first.

Bob
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Old 07-08-2012, 06:42 AM   #19
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Hi

If you are like most of us around here, a given configuration of "stuff" will last about six months before there's a "need to modify".

Bob
Amen Brother!!!
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