Subject: From: Date:

Group-Maximum and Group-Minimum Problem with ecs 4.2.009? Michael David Sun, 23 Jan 2000 18:08:01 -0500

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Hi Mark!

Did you change the way Sub-Types work with the Group-Maximum and
Group-Minimum items in the latest release?  I ask because these items no
longer work as before.  Here's an example:

I have a group called "Security Away Sensors".  In that group, I have all
the items I need to monitor for a Security Violation.  The items being
monitored are digital inputs and various other items.  The Digital inputs,
as you know have states of High/Low.  The other items have states like
yes/no, on/off, true/false, open/closed, etc.  So, basically, I have a group
with a bunch of items, each having a state-value of 0 or 1.

Now, in that group, I have a Group-Maximum item, with a sub-type of
true/false.  I test this item in my security event to see if anything has
been violated.

The problem is this:  The state of a group-maximum (or group-minimum)item is
now only affected by items whose states match that of the sub-type of the
group-maximum item.  In other words, in my security group mentioned above,
only an item with a true/false state has any effect on my group-maximum item
(which has a sub-type of true/false).

Did that make sense?  :)

Let me know if you need any more info, examples, etc.


Cheers!

Michael David
michael@michaeldavid.com

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