Re: [foxboro] Accum Block Reset
- From: Jorge_JS <jorge_js@xxxxxxxxxxx>
- To: lista foxboro <foxboro@xxxxxxxxxxxxx>
- Date: Mon, 16 Feb 2009 17:32:05 +0000
Well the tare should be in a valid method. Taking the time difference between
both accums and calculate the value requiered to be added/substracted...
Jorge Jimenez
Resirene Tlaxcala, Mexico
> From: jorge_js@xxxxxxxxxxx
> To: foxboro@xxxxxxxxxxxxx
> Subject: Re: [foxboro] Accum Block Reset
> Date: Mon, 16 Feb 2009 17:24:36 +0000
>
> After reading this I think the 3'd CP method should give better results and
> also trying to relocate the phase in order to take a low demand in both
> processors at the moment of running the instruction. Well this may sound
> tricky but if you tare the preset value in the accum for the proper amount it
> may give good results.
>
> Jorge Jimenez
> Resirene Tlaxcala, Mexico
>
>
>
>
> > Subject: Re: [foxboro] Accum Block Reset
> > Date: Mon, 16 Feb 2009 12:09:36 -0500
> > From: tdoucet@xxxxxxxxxxxxxxxxxx
> > To: foxboro@xxxxxxxxxxxxx
> >
> > Brian,
> > The Master Timekeeper is supposed to keep the internal clocks of all
> > stations (including CP's) within +-1 second, previous to V8. So your two
> > CP's (worst case) could be almost 2 seconds difference. This is the best
> > resolution you should expect to see.
> >
> >
> > If that is acceptable, then you can try the period phase items, below. But
> > remember that you need a 1/2 second or at worst 1 second period.
> >
> > Check to see if you have OM_Scanner overruns on both CP's
> >
> > Terry Doucet, Eng.
> >
> >
> >
> > Objet : Re: [foxboro] Accum Block Reset
> >
> > Maybe check that the phase and period are the same in both CPs. Also try to
> > move the compounds to get them at the begging of the list (compounds and
> > blocks) that way the CP will execute the blocks als most at the same time.
> > I guess that both cps are on the same network and running the same system
> > hour.
> >
> > Jorge Jimenez
> > Resirene Tlaxcala, Mexico
> >
> >
> >
> > > From: blong@xxxxxxx
> > > To: foxboro@xxxxxxxxxxxxx
> > > Subject: [foxboro] Accum Block Reset
> > > Date: Mon, 16 Feb 2009 09:05:18 -0600
> > >
> > > Question?
> > >
> > > Accum1 runs in CP1, node1
> > >
> > > Accum2 runs in CP2, node2
> > >
> > > I need to reset both accum blocks at the same time. Right now they are
> > > close
> > > but not close enough which is surprising since both CP's are lightly
> > > loaded.
> > > I wanting to generate the reset in the CP not in CRON if possilbe. I'm
> > > using the CPx_STA:STATION.HOUR parameter currently to do the reset
> > > (clear).
> > >
> > > Thanks in Advance,
> > > Brian Long
> > > Arkansas Kraft
> > >
>
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Systems (formerly The Foxboro Company). Use the info you obtain here at
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