[?+]: Compact HMI 800 with Third party OPC

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Linkinx64
Posts: 894
Joined: Sun Apr 11, 2010 3:00 am
Location: Russia

Re: [?+]: Compact HMI 800 with Third party OPC

Post by Linkinx64 » 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).

tuangp
Posts: 125
Joined: Wed Apr 11, 2007 7:53 am

Re: [?+]: Compact HMI 800 with Third party OPC

Post by tuangp » 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. :(

Linkinx64
Posts: 894
Joined: Sun Apr 11, 2010 3:00 am
Location: Russia

Re: [?+]: Compact HMI 800 with Third party OPC

Post by Linkinx64 » 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. :(
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