Re: [foxboro] CALCA / Foxdraw / BAD I/O Graphic Question
- From: "Badura, Tom" <tbadura@xxxxxxxxxx>
- To: <foxboro@xxxxxxxxxxxxx>
- Date: Thu, 6 Oct 2011 11:05:19 -0500
Yes, a 3-state device block has been on my wish list also. We use quite
a few - 2-speed motors, 3 position diverting valves, bulk/dribble feed
valves. We have created a series of CALC blocks and a CIN for alarm
generation to handle these devices and make them appear as standard
devices to the operators. We also use GDEVs to handle Hand Valves
(manually actuated valves with position feedback limits). We add a
logic block to manipulate the DSR when the operator moves the valve.
Again, it allows them to appear and act like a "standard" GDEV valve.
Would be glad to share any of these if anyone is interested.
Tom Badura
Plastics Engineering Company
tbadura@xxxxxxxxxx
-----Original Message-----
For motors I wish they had 3 states, and momentaries, a la old-school
Brand H (maybe new-school Brand H, too, I don't know), but yes, GDEVs
are
better than the several-CIN/COUT alternative. For on-off valves they are
great. I now typically use them for generic operator-interface "soft
switches" as well, for consistency, and because COUTs do not have
configurable state text.
Corey
Use Gdev's, No need for Calc blocks, no need to invent the wheel
again...... We've been using them form the start, but configured for PLB
use. One block gives you the control over the valve and complete status
feedback (STAIND), also has nice features for interlocking etc....
Couldn't live without them.....
Kind regards
Dirk
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