Subject:
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Re: Simulating pneumatic sequencers, was Re: Pneumatic Quadraped 242
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Newsgroups:
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lugnet.technic, lugnet.robotics
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Date:
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Fri, 28 Nov 2003 19:36:10 GMT
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Viewed:
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6460 times
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> I downloaded the tools, and entered the base schematic for Quad242. Quad242
> depends on some initial conditions where 4 of the 5 flops have a value of 1.
> I've read the docs and not found a way to preset the flops.
>
> Any ideas?
>
> Your choice to model the pistons as SR flops is perfect. With SR's you can
> set or reset but not set and reset. Pistons are exactly like that. Pressure at
> both ports on the piston provides unpredictable results.
Hi Kevin,
Here is a simple circuit that also require some initialisation:
http://www.brickshelf.com/gallery/Philo/Misc/simul3.gif
I didn't find the digital equivalent of the .IC (initial condition) used in
analog simulations, but if you use the probe tool (arrow on the screen capture)
and click on a node, you toggle its state.
There may be better ways, but this one works (I'm not that fluent in the use of
CircuitMaker...)
Philo
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