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<== Date ==> <== Thread ==>

Subject: Re: Your Message Sent on Thu, 31 Oct 2002 12:25:33 -0800
From: Andrew Johnson <[email protected]>
To: Jim Thomas <[email protected]>
Cc: [email protected], [email protected], Ned Arnold <[email protected]>
Date: Thu, 31 Oct 2002 17:39:09 -0600
Jim Thomas wrote:
"Ned" == Ned Arnold <[email protected]> writes:

Ned> The short answers are ...


>> From: "Redman, Russell O." <[email protected]>
>> My big questions are thus
>> 1) Under what circumstances does pushing a value over a CA link cause the
>> target record to process?


 Ned> .... if the destination field is defined as "PP" (with the statement
 Ned> "pp(TRUE)" in the *.dbd file and so documented under the PP column in
 Ned> the record reference manual) and the record scan field is set to
 Ned> "Passive". If these two conditions are true, the record will process
 Ned> when ANY channel access client (including a sequence programs, CA
 Ned> links, etc) writes to that field.

So it is a record type property?  There is no way to vary it per record
instance?

Yes and yes.


Implication -> more special record types :-(

Not necessarily; if it's important in some particular circumstance to use the "other" setting for a field, you can always put an AO or similar record in the way with a DB link on its OUT field set to PP or NPP as required. I've never heard of anyone producing a new version of a record type just to change a PP setting, although I suppose it could happen...


- Andrew
--
"Life is what happens while you're busy making other plans." - John Lennon


References:
Re: Your Message Sent on Thu, 31 Oct 2002 12:25:33 -0800 Ned Arnold
Re: Your Message Sent on Thu, 31 Oct 2002 12:25:33 -0800 Jim Thomas

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