[foxboro] INVALM issue on a CIN block

Hi list,

Yes, I'm fishing for a quick answer before I call TAC :)


We had to change some CIN blocks today such that the alarm state was the 
OFF state on the blocks.  I set INVALM to 1 and the block detail display 
looked fine -- the OFF state of the block caused the big red STATE to come 
up, and the ON state caused the alarm to clear (well, STATE changed to 
UNACK).


However, when I look in the alarm history display, it appears that INVALM 
is being ignored there.  The ON state of the CIN block generates the alarm 
message, and the OFF state generates the return message -- exactly the 
opposite of what I'm seeing on the block detail.  The alarm "printer" 
(actually, a PC running Visual Alert) exhibits this same behavior.


I looked through the QFs for I/A version 6.5.3 but didn't find anything. 
Anyone ever seen anything like this before?  I'll probably delete/undelete 
all the changed CIN blocks next if I can't find some other remedy.  These 
blocks are in a CP40A.


Thanks,

Corey Clingo
BASF Corporation




 
 
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