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Posted: **Fri Nov 22, 2013 10:29 am**

I guess the alarm expression aspect can't parse the "$" symbol (in 800xA/CHMI800 it is reserved to point on the structures: e.g. $'Root/.../...)
Place your property in the left side of operator to the single quotes to interprete the property as whole ('ST$Pos$stSeld' == true).

Posted: **Fri Nov 22, 2013 10:48 am**

You're correct. Right syntax is "ST$Pos$stSeld"==true
But I don't know why the signal alarm display only one time on Alarm and Events List. After ack. it not appaer any more whether condition changed.

Posted: **Fri Nov 22, 2013 12:54 pm**

tuangp wrote:You're correct. Right syntax is "ST$Pos$stSeld"==true
But I don't know why the signal alarm display only one time on Alarm and Events List. After ack. it not appaer any more whether condition changed.

I don't believe you:

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