Experimental Physics and
Industrial Control System

Device support has priviledged access to a record's fields, and should not use channel access to change a field value.  (dbPutField uses channel access.)  Just write directly to the field (for example, "prec->val = 3;").  Make sure you then call db_post_events() so everybody else will know that you've changed the field value.

Tim
----- Original Message -----
> From: [email protected]
> To: "tech-talk" <[email protected]>
> Sent: Tuesday, March 5, 2013 11:19:23 PM
> Subject: database runtime acess
> 
> hello:
> 
> I want to change a process valiable's field at runtime in the device
> support. The record type is writen by myself.
> 
> I do it using the dbPutField() as the 15th chapter of application
> developer's guide said.
> 
> but I always get an segment fault after i process the record's field
> at runtime.
> 
> Am I do it somewhere wrong?
> 
> 
> 

References:

database runtime acess ahwwq

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