Re: [foxboro] GDEV functionality

Yes, I use GDEVs extensively and am converting the numerous VLV & MTR
blocks that uninformed engineers have built over the years.  There are
numerous advantages to GDEV, not least of which is STAIND for bitmapping to
display elements.  However, I really wish there was 3-state capability.  As
I stated earlier, many of our block valves have closed, open & half-open,
and there's no way to accomplish this with a single block.  We use a CALC
coupled with 2 CINs for valve limits & 2 COUTs for solenoids.  I suppose if
all the valves were wired differently, I could use MCIN & MCOUT, but that's
not the case ... aaargh.

Brad Wilson
Process Control Engineer
ExxonMobil Chemical Co
Edison Synthetics Plant
732-321-6115
732-321-6177 fax
Brad.S.Wilson@xxxxxxxxxxxxxx

 
 
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