[foxboro] STATE block
- From: Gregory A Hurwitt <gregory.hurwitt@xxxxxxxx>
- To: foxboro@xxxxxxxxxxxxx
- Date: Mon, 23 Mar 2009 16:41:26 -0500
(I/A Version 8.2, Foxdraw Version 10.0.2)
I am developing a small application that will be using a STATE block.
There will be a graphic that allows the Operations Engineer to change bits
in the STATxx (state pattern) parameters. Unfortunately, when reading
these parameters back to the graphic, the displayed bits do not update
unless the graphic is reloaded.
I imagine many of you have not worked with STATE blocks, however, you may
have seen the identical behavior with the Mxx (memory) parameters of a
CALCA block. The displayed information does not update when the value
changes; when the display is reloaded then the current value is displayed
properly. For both the STATE.STATxx and CALCA.Mxx parameters, this
behavior is observed on both user-generated graphics and the default block
detail display
These are parameters that in many applications might not be updating
frequently (as opposed to say the .PNT of an AIN block), so I can kind of
see why they behave differently from other parameters. But I've never
seen anything in the documentation that labels these somehow as "static"
parameters not subject to display updates. Have I missed something in the
docs?
More importantly, is there a way to configure my FoxDraw graphic to force
the display of these parameters to update on change or on say an
every-5-second basis?
Greg Hurwitt
E-Mail: gregory.hurwitt@xxxxxxxx
BASF Corporation
Freeport, TX 77541
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