Experimental Physics and
Industrial Control System

Benjamin Franksen <[email protected]> · Thu, 17 Nov 2005 22:20:19 +0100

On Thursday 17 November 2005 22:06, Andrew Johnson wrote:
> Benjamin Franksen wrote:
> > On the IOC (example app) this gives me:
> >
> > epics> franksenHost:aiExample.TIME dbNameToAddr failed
> > franksenHost:aiExample.TIME dbNameToAddr failed
> > franksenHost:aiExample.TIME dbNameToAddr failed
> > franksenHost:aiExample.TIME dbNameToAddr failed
> > franksenHost:aiExample.TIME dbNameToAddr failed
>
> dbCommon.dbd defines
>          field(TIME,DBF_NOACCESS) {
>                  prompt("Time")
>                  special(SPC_NOMOD)
>                  interest(4)
>                  extra("epicsTimeStamp   time")
>          }
>
> Thus the TIME field is not directly accessible outside the
> record/device support code; you can only read timestamps using the
> appropriate DBR_ request types on the VAL field of a record.  This is
> because a timestamp is not one of the fundamental value types that CA
> V3 supports.

Dear Andrew,

please re-read my message. I explicitly said I did this to provoke an 
error message on the IOC console. I merely wondered if this is such a 
severe error that the IOC must report this five times, when (IMHO) once 
would have been enough ;-)

Cheers,
Ben

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System