Re: [foxboro] Need Clarity on ALMSTA

Hi Tim,

  The following is from Integrated Control Configurator   B0193AV, Rev L 

Steve Murray
Asarco
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Boolean Extensions to Status Parameters
The format of Boolean connection extensions to status parameters is:

Cname:Bname.Pname.Extension

where:

Pname = BLKSTA, ALMSTA or INHSTA

Extension = [{0,1}.]{[~]Bmask,[~]{A,X}[H]mask,[~]symbol}

Legend: [] = optional 
{,} = select one 
 

The following table lists examples of this type of extension.


 Pname.Extension Meaning 
BLKSTA.BAD Result = BAD Boolean of source BLKSTA. 
BLKSTA.~BAD Invert result of previous example. 
ALMSTA.LDA  Result = LDA Boolean of source ALMSTA. 
ALMSTA.~LDA Invert result of previous example. 
INHSTA.HOA Result = HOA Boolean of source INHSTA. 
INHSTA.~HOA Invert result of previous example. 
BLKSTA.B12 Result = Boolean 12 of BLKSTA. 
BLKSTA.AH30A0 Bitwise AND the high-order 16-bits of BLKSTA with hex 30A0.
If result not = 0, set result = 1.
Else, set result = 0. 
 

Examples using the full Cname:Bname.Pname.Extension path name are:


BLENDER1:PID.ALMSTA.LDA

BLENDER1:MAIN.BLKSTA.AH30A0


-----Original Message-----
From: Lowell, Tim: [mailto:Tim.C.Lowell@xxxxxxxxxxxxxxxxxx]
Sent: Thursday, March 27, 2003 13:21
To: 'foxboro@xxxxxxxxxxxxx'
Subject: Re: [foxboro] Need Clarity on ALMSTA



This brings up a good point though.  Is there ANY documentation anywhere for
how to figure out these ALMSTA, BLKSTA, and INHALM bit extensions?  Could
somebody come up with something and submit it to Cassandra?  I don't have
the first idea how to do this, so a little primer would be nice.

Tim Lowell
Control Systems Engineer
ConocoPhillips, Trainer Refinery
Phone:  610-364-8362
Fax:    610-364-8211
Tim.C.Lowell@xxxxxxxxxxxxxxxxxx

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