Experimental Physics and Industrial Control System
>>>>> "Mark" == Mark Rivers <[email protected]> writes:
>>>>> "Matthew" == Pearson, MR (Matthew) <[email protected]> wrote:
Matthew> It is arguably more useful to have a 'homed' status, rather than
Matthew> 'at home'.
Mark> I think we should stick with the "at home" meaning. Many (most?)
Mark> controllers don't have the concept of "homed" but they do have the
Mark> concept of "at home".
I vote for having a "homed". How does one tell if the position is known
otherwise? Our "lost" == ~"homed" makes for an easy check.
Matthew> Especially since the 'at home' status can be inferred from the
Matthew> position (once it is homed of course).
Mark> I don't think you can infer "at home" from the position. What if the
Mark> motor is a stepper with no encoder and it lost steps sometime after
Mark> being homed? It might not really be at home when the position says it
Mark> is.
Agreed. But then the system is broke anyway, so who cares?
$0.02
Jim
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