>
> > Chris
> >
> > -Ursprüngliche Nachricht-----
> > Von: Lukas Ott
> > Gesendet: Montag, 8. März 2021 12:58
> > An: dev@plc4x.apache.org
> > Betreff: Re: [DISCUSS] Minimum sampling interval on change of state
> > subscription
> &
uld
> simply be a bit too much, I think.
>
> Chris
>
> -Ursprüngliche Nachricht-
> Von: Lukas Ott
> Gesendet: Montag, 8. März 2021 12:58
> An: dev@plc4x.apache.org
> Betreff: Re: [DISCUSS] Minimum sampling interval on change of state
> subscription
>
&
@plc4x.apache.org
Betreff: Re: [DISCUSS] Minimum sampling interval on change of state subscription
Hi,
concerning limiting the data rate is a really valid point as the newer PLCs are
doing exactly that (e.g. they have a Data collector and Data Processor included
- and we did exactly that as well
yer ...
> not
> > yet ...
> >
> > Chris
> >
> >
> > -Ursprüngliche Nachricht-
> > Von: Łukasz Dywicki
> > Gesendet: Montag, 8. März 2021 11:08
> > An: dev@plc4x.apache.org
> > Betreff: Re: [DISCUSS] Minimum sampling interval
gt; Von: Łukasz Dywicki
> Gesendet: Montag, 8. März 2021 11:08
> An: dev@plc4x.apache.org
> Betreff: Re: [DISCUSS] Minimum sampling interval on change of state
> subscription
>
> Hey Ben,
> I began writing this answer shortly after you sent your mail but
> eventually l
ughout all PLC4X drivers. As I recall we
currently don't have this subscription simulation layer ... not yet ...
Chris
-Ursprüngliche Nachricht-
Von: Łukasz Dywicki
Gesendet: Montag, 8. März 2021 11:08
An: dev@plc4x.apache.org
Betreff: Re: [DISCUSS] Minimum sampling interval on chang
Hey Ben,
I began writing this answer shortly after you sent your mail but
eventually left it for a day or two to thing it through.
Looking at API I believe we have three major cases:
- polling/push interval
- change of value
- every value
Looking at above change of value should not require any
I have not yet read your mail in detail, but just a short note: if you set the
subscription interval in opc ua / milo to 0 then you will get Events
immediately.
> Am 06.03.2021 um 13:06 schrieb Ben Hutcheson :
>
> Looking at the change of state subscription interface there's no
> explanation
Looking at the change of state subscription interface there's no
explanation or way to modify the Duration parameter which defaults to one
second. This is used in OPC UA as a minimum reporting time so will never
report back faster than 1 second.
What's everyone's thoughts on adding this as an
