Re: [foxboro] 12 hour ave

I need a rolling 12 hour average that the operators can watch, otherwise I'd
use a reduction group.  Thanks for the help.

-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx
[mailto:foxboro-bounce@xxxxxxxxxxxxx]On Behalf Of Schouten, Frits JF
Sent: Wednesday, February 25, 2004 6:24 PM
To: 'foxboro@xxxxxxxxxxxxx'
Subject: Re: [foxboro] 12 hour ave


Do you want a rolling average or an average per shift or what?
Reduction groups can help you a fair bit.
Filtering and cascading blocks can do it too.
Perhaps use cascading DTIME blocks.
Utilise the bucket array to first average 10 seconds, then feed the average
into the next DTIME block and average 10 of 10, and then 10 of 100 and then
10 of 1000 and then......
12 hour seconds is 43200 samples. Fair bit to go.

Cheers,
Frits.


-----Original Message-----
From: Brian Long [mailto:blong@xxxxxxx]
Sent: Thursday, 26 February 2004 12:54
To: Foxboro
Subject: [foxboro] 12 hour ave


I need to take an analog input running at 1 sec and average it over 12
hours.  I need to display the value so I can't use the historian functions.
Anybody got a simple solution?
Thanks,
Brian Long
E&I Superintendent
Green Bay Packaging
Arkansas Kraft Division




_______________________________________________________________________
This mailing list is neither sponsored nor endorsed by Invensys Process
Systems (formerly The Foxboro Company). Use the info you obtain here at
your own risks. Read http://www.thecassandraproject.org/disclaimer.html

foxboro mailing list:             http://www.freelists.org/list/foxboro
to subscribe:         mailto:foxboro-request@xxxxxxxxxxxxx?subject=join
to unsubscribe:      mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave


EOM

NOTICE - This message and any attached files may contain information that is
confidential and/or subject of legal privilege intended only for use by the
intended recipient. If you are not the intended recipient or the person
responsible for delivering the message to the intended recipient, be advised
that you have received this message in error and that any dissemination,
copying or use of this message or attachment is strictly forbidden, as is
the disclosure of the information therein.  If you have received this
message in error please notify the sender immediately and delete the
message.




_______________________________________________________________________
This mailing list is neither sponsored nor endorsed by Invensys Process
Systems (formerly The Foxboro Company). Use the info you obtain here at
your own risks. Read http://www.thecassandraproject.org/disclaimer.html

foxboro mailing list:             http://www.freelists.org/list/foxboro
to subscribe:         mailto:foxboro-request@xxxxxxxxxxxxx?subject=join
to unsubscribe:      mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave


 
 
_______________________________________________________________________
This mailing list is neither sponsored nor endorsed by Invensys Process
Systems (formerly The Foxboro Company). Use the info you obtain here at
your own risks. Read http://www.thecassandraproject.org/disclaimer.html
 
foxboro mailing list:             http://www.freelists.org/list/foxboro
to subscribe:         mailto:foxboro-request@xxxxxxxxxxxxx?subject=join
to unsubscribe:      mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave

Other related posts: