Re: [foxboro] Accum Block Reset
- From: Jorge_JS <jorge_js@xxxxxxxxxxx>
- To: lista foxboro <foxboro@xxxxxxxxxxxxx>
- 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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