[etherlab-dev] EoE patchs and questions

[Esben Haabendal]

Graeme Foot <Graeme.Foot at touchcut.com> writes:

> I agree that EtherCAT is dynamic in that it allows Hot Plugging of
> modules.  But every time a module is added or removed the system is
> rescanned, all slaves are put into PREOP, Distributed clocks delays
> are recalculated etc then all configured slaves put back into OP.
>
> So although you can dynamically plug in modules at any time, your
> application first of all needs to configure expected modules, and if
> they exist know what to do with them.  So at some point your
> application needs to know all possible modules that could be plugged
> in.  (EoE modules are slightly different though in that they also work
> in PREOP.)
>
> You say you don't use aliases on your EoE modules, but do you use
> aliases on the rest?  (or at least the couplers?)  If not how do you
> know what is currently plugged in?

I think most projects here currently do not use alias.  They probably
should do that for our couplers.  But that does not change that I
believe that etherlabmaster should fully support systems that does not
use alias.

/Esben