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
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:59:53 EDT