Re: [foxboro] DTIME block
- From: Rguercio@xxxxxxx
- To: foxboro@xxxxxxxxxxxxx
- Date: Thu, 14 Feb 2013 17:21:00 -0500 (EST)
Thanks, Roger and Chuck. Roger, your SEQ solution is much more elegant
than my old one (thanks), and Chuck - I think if you check closely, setting
DTOPT false actually is the option that 'averages' the inputs. Thanks to
you both for responding.
Rick Guercio, P.E.
RG Consulting
918 E Desert Shrub Drive
Washington, UT 84780
713-805-8742 cell
In a message dated 2/14/2013 3:45:40 P.M. Eastern Standard Time,
Chuck.Jones@xxxxxxxxxxxxxxx writes:
I think averaging the inputs (DTOPT=TRUE) just "smoothens" the input,
but the block continues to operate as a dead time delay.
I use DTIME blocks paired with SIGSEL blocks to get short term
averages--for example, 1min-10min.
I in the DTIME block:
DT = total time of average (units are in minutes)
FOLLOW = FALSE
NUMBKT = 8 (number of buckets to match the inputs on a SIGSEL block)
DTOPT = FALSE (do not average)
Then I connect the 8 inputs of a SIGSEL block to the 8 buckets:
SIGSEL.INP1 <-- DTIME.BKT_1
SIGSEL.INP2 <-- DTIME.BKT_2
...etc...
SELOPT = 3 (calculate average)
We are at V6.1.1
Chuck Jones
Tate & Lyle
Automation Technologist
Chuck.Jones@xxxxxxxxxxxxxxx
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