YOu can make the strings as long as you like. You just can't set or get them through channel access then - a 40 character limit. I'm not sure that it handles this properly. Jeff or someone else should comment on that.
Bob
-----Original Message-----
From: [email protected] on behalf of Ilya V. Kitaev
Sent: Fri 12/5/2008 3:29 AM
To: Kalantari Babak
Cc: [email protected]
Subject: Re: How to implement simple control algorithm (one more question)
Hi,
Thank you for your answer.
I'd like to ask one more question:
Is it ok to break 40 chars limit in CALC field( or another text fields
like DESC) ?
I've changed this limit to 200 in calcoutRecord.dbd, db_access.c and
epicsTypes.h (MAX_STRING_SIZE define) and it works ok.
2008/12/3, Kalantari Babak <[email protected]>:
> Hi,
>
> You do not need to write your own CA application for that.
>
> Monitor alarm status of your "ai" with a "calcout" record and write to
> your "bo" upon occurrence of the conditions.
> This can be done for example as the following:
>
> record(calcout, "$(ALGORITHM)")
> {
> field(INPA,"$(YOUR_AI_REC).STAT CP") # monitoring
> field(INPB,"$(YOUR_BO_REC).VAL NPP")
> field(CALC, "A=3?1:A=5?0:B")
> field(OOPT, "On Change")
> field(OUT,"$(YOUR_BO_REC) PP")
> }
>
> Alarm status value for HIHI is 3 and for LOLO is 5.
>
> HTH,
> Babak
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