Re: [foxboro] Sequence code

  • From: "Douglas G. Lloyd" <DGL@xxxxxxxxx>
  • To: <foxboro@xxxxxxxxxxxxx>
  • Date: Fri, 10 Jan 2003 17:26:58 -0500

Roger,

The sequence block will not actually stop running until it hits a suspension
statement (WAIT, external reference, etc.) or executes the maximum number of
statements (BPCSTM).  Put a WAIT statement after the ABORT to immediately
stop normal execution.  The TO_INACTIVE SBX logic will start running the
next scan period.

Regards,

Doug Lloyd
DGL Controls

-----Original Message-----
From: foxboro-bounce@xxxxxxxxxxxxx [mailto:foxboro-bounce@xxxxxxxxxxxxx]On
Behalf Of Roger Smith
Sent: Friday, January 10, 2003 3:31 PM
To: 'foxboro@xxxxxxxxxxxxx'
Subject: [foxboro] Sequence code


I have an Independent sequence block that has some code that checks a
Boolean input and aborts itself it the input is true.  It seems to continue
to execute some of the code following the abort line.  I think the ABORT
command simply toggles the ACTIVE bit.  Does the block not respond
immediately to the toggling of the ACTIVE bit?  Has anyone run across this
or have any ideas?  The block also has a "TO INACTIVE" exception handler
which seems to work.

Roger B. Smith
Chief, Process Control Engineering
Waste Water Services
City of Atlanta
404 350-4952



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