Re: [PSUBS-MAILIST] Sensor Interfacing

["Sean T. Stevenson" <sts@telus.net>]

You can actually get away from PC/OS based solutions entirely for about the same cost as a good industrial computer.  I have some experience using National Instruments' Compact Fieldpoint controller, which allows you to run software written in LabVIEW (on a PC) in real-time on the controller.  A variety of different modules (analog input, analog output, digital input, digital output, PWM control, thermocouple, etc.) are available for the compact fieldpoint system.

Whatever you decide to do, make sure that the hardware will work in a 100% humidity environment.   You may need an additional enclosure.

-Sean


Quoting Warren Greenway <opensourcesub@yahoo.com>:

> The only problem will be the reliablilty. If the
> system
> is non-critical, then have fun...However, if your life
> depends on the system or your safety is affected by it
> 
> in any way...Then please avoid PC based solutions. I
> don't want to see the obituaries of any folks on list
> list because of a system malfunction. If you want to
> use an off the shelf system, try searching on google
> for
> a single board industrial computer. There are some
> nice
> ones that are extremely reliable.
> 
> Warren.
> 
> --- Adam Lawrence <adteleka@in-tch.com> wrote:
> > Hi Peter,
> > 
> > I am also just learning about control system
> > hardware and software. At
> > school we are using this
> > http://www.omega.com/DAS/pdf/CIO-DAS08.pdf board in
> > a PC along with VisSim http://www.vissim.com/
> > software to graphically
> > construct mathematical operations to control and
> > monitor some
> > instrumentation. It is very easy to use. We are
> > using it to look at certain
> > aspects of steam turbine power plants. It could also
> > be used in a psub.
> > 
> > Adam