Experimental Physics and
Industrial Control System

"Anna M. Estes" <[email protected]> · Tue, 03 Jun 1997 11:08:10 -0400

Marian,

I didn't give you all that helpful info about EDD/DM, Deb Kerstiens did.
I inadvertantly resent her reply, and followed it with a "ooops" email.  
Sorry for any confusion.  I am now much more careful with my email :)

Anna Estes

At 04:45 PM 6/3/97 +0200, you wrote:
>> > In the EDD/DM I need to implement color rule which represents the
>> > highest alarm severity of two channels.
>> >
>> > Then I didn't found how to pass two or more arguments to the rule (is it
>> > possible at all ?)
>> >
>> Yes, it is possible to pass more than one argument.  However,
>> you can't directly compare one alarm severity to another since
>> the right hand terms (the terms following the comparators)
>> are basically constants.
>> 
>> In the modify property page for the item in the "color rule
>> arguments" field, you can enter something like:
>>         A=chan1.SEVR, B=chan2.SEVR
>> 
>> Your color rule definition could be something like:
>>         $(A)    equals          MAJOR   and
>>         $(B)    less than       2       use     <A>B color>
>>         $(A)    equals          MINOR   and
>>         $(B)    equals          NONE    use     <A>B color>
>>         $(B)    equals          MAJOR   and
>>         $(A)    less than       2       use     <B>A color>
>>         $(B)    equals          MINOR   and
>>         $(A)    equals          NONE    use     <B>A color>
>> 
>> 
>> Note that the color is selected on a "first match" basis,
>> Also comparisons are done based upon the type of entry, i.e.
>> if a string is in the third column, the value of the first
>> column will be compared using a string compare and a numerical
>> compare will be done otherwise. It's awkward since you have to
>> define all possible comparisons separately.
>> 
>> Let me know if you have more questions.
>
>Thanks for your reply.
>
>I put the rule as below:
>
>         $(A).SEVR    equals          MAJOR   or
>         $(B).SEVR    equals          MAJROR  use     <A>B color>
>         $(A).SEVR    equals          MINOR   or 
>         $(B).SEVR    equals          MINOR   use     <A>B color>
>         $(B).SEVR    equals          NO_ALARM   and
>         $(A).SEVR    equals          NO_ALARM use     <B>A color>
>         
>and passed arguments to them: 
>	A=XXX:YYY:Z:chan1Alarm,B=XXX:YYY:Z:chan2Alarm
>
>But then when I activate the display dm "dies" (not possible to perform
>any action on the display, besides killing it from WM)
>Is there any limit concerning the total length of the arguments in the
>line ?
>
>Thanks for any comments.
>
>Regards,
>Marian
>--
>Marian Zurek
>CERN/ECP-CO
>
>
****************************************************************************
Anna Estes
Computer Sciences Corporation
NASA Langley Research Center
[email protected]
(757) 766-8266
****************************************************************************

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System