Data acquisition IO is very fast. Up to 10khz on inputs.
Typical Pulse counting IO can count up to 500hz
I have configured digital IO that can update 6400 points per second.
I'm hoping that's fast enough.
Patrick O'Day
----- Original Message -----
From: "Jim Yeagley" <jyeag@core.com>
To: <dakota-truck@buffnet.net>
Sent: Thursday, March 01, 2001 3:33 PM
Subject: Re: DML: Modifing pulses and analog signals to the PCM
>
>
> From: Shane Moseley <smoseley@ix.netcom.com>
> > While I do agree with the reasoning behind wanting to do this - I'm not
so
> sure
> > if a PLC can make it easy to get there. I mostly say this because I am
> just
> > ignorant when it comes to PLCs. Don't they just map a set of inputs to
a
> > selectable set of outputs? More importantly, what kind of speeds (of
> conversion
> > - or latency from in-to-output) can it achieve? Is this a 2D mapping
> because
> > you'll more than likely need at least a 3D-type mapping. If the speed
is
> > adequate, what about after implementing a 3D (or greater) type of
kludge -
> will
> > the speed still be there?
>
> We use some PLC's at work, mainly for conveyor controls. They use ladder
> logic type programming, if/then statements and the like. A good
programmer
> can make them do wonders, but I too would have concerns with the i/o
speeds.
>
> Jim
>
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