Experimental Physics and Industrial Control System
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Also keep in mind that when you descend into the ~0.1s time-scales, you are getting into time-constant territory.
Many mechanical system simply cannot go that fast...
-- dc
On Tue, Apr 19, 2011 at 2:42 PM, J. Lewis Muir <[email protected]> wrote:
On 4/19/11 1:16 PM, Jay Steele wrote:
> Does anybody have any ideas or implementations to fix
> TPMAC so that there isn't this minimum move time of
> 0.25 second? I have not dug into the internal logic yet
> but thought I would check with the EPICS community
> first.
Hi, Jay.
The last paragraph of the comment (i.e. "A cleaner fix ...")
includes some suggestions on possible ways to do that.
However, I think at some point you will come up against the rate
at which the PMAC is being polled by the driver. I think this
is 10 Hz right now. If you need to get that move time below 0.1
seconds, I think the driver poll rate would need to be increased.
Lewis
- References:
- question about fix for AssyGeneric_scanrec_v2.db patch in tpmac module (results in 0.25 s minimum move time) Jay Steele
- Re: question about fix for AssyGeneric_scanrec_v2.db patch in tpmac module (results in 0.25 s minimum move time) J. Lewis Muir
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ANJ, 18 Nov 2013 |
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