[foxboro] Bad Value Status and HLBL
- From: Jerry Hidahl <Jerry_Hidahl@xxxxxxxxxxxx>
- To: foxboro@xxxxxxxxxxxxx
- Date: Mon, 24 Apr 2006 15:08:46 -0500
Hi, Everyone.
I've got a problem where a sequence program (HLBL) is getting an external
real value from a SWCH block storing it to a dependent block parameter. The
value includes error status which is also being stored. That's okay, so
far. The problems occur when a host program, the IADriver task for FoxBatch
(original version) attempts to read the occasional bad value and fails. I
need to find a way to detect the error status of the value within the
sequence program, and either strip it off or just avoid assigning the
value.
I've looked through the documentation available to me and found no clues.
Does anyone out there have any ideas for detecting error status in real
values within a sequence program?
Jerry Hidahl
Huntsman Corp.
Port Neches, TX
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