[foxboro] Calca Block Logic Help
- From: "Gillis, Dale" <Dale.Gillis@xxxxxxxxxxxxx>
- To: <foxboro@xxxxxxxxxxxxx>
- Date: Wed, 24 Oct 2007 20:25:24 +0300
Hi list,
I need some help with some calc block logic.....I think I'm having a
brain fart as I cannot get this.
What I want to do is use a calc block to set a bit (BO01) to 1 for one
minute at midnight on the first day of every month. I've set RI01 =3D
Station.day, RI02 to Station.hour and RI03 to Station.Minute. Then I
want to use this bit to toggle a SWCH block and hold it toggle for 1
month until the next 1st day at midnight comes and toggle the other way.
Here is what I have so far but I cannot get it to remember the toggle
bit so as to keep the SWCH Block Toggled
(1)In RI01
(2)SUB M01 (which is 1.0)
(3)MIN=20
(4)In RI02
(5)In RI03
(6)Add 3
(7)BIZ 9 (Set the Bit)
(8)GTO 11 (Clr the Bit)
(9)SET BO01
(10)EXIT
(11)CLR BO01
Then I was using a Flip Flop to remember this BO01 but I don't know how
to reset it when the next month comes around so that it will change the
toggle on the SWCH Block. Any help would be much appreciated!
Dale Gillis
=20
_______________________________________________________________________
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: //www.freelists.org/list/foxboro
to subscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=join
to unsubscribe: mailto:foxboro-request@xxxxxxxxxxxxx?subject=leave
Other related posts:
- » [foxboro] Calca Block Logic Help
