Experimental Physics and
Industrial Control System

Marty Kraimer <[email protected]> · Fri, 11 Dec 1998 07:32:43 -0600

"Hammonds, John" wrote:
> 
> Hi all,
> 
> I have been trying to get some links between record in different crates.
> What I am trying to accomplish at this time is a master enable switch
> between two crates for data acquisition.  Crate 1 & Crate 2 both have an
> enable record (a bo).  The enabled signal is passed in hardware from crate1
> to crate2.  I would like to pass the two enables into the INPA and INPB
> field of a calc record.  I have FLNK'd both to a calc record in the fist
> crate(cross crates to the .PROC field according to some docs).  The val
> field of the bo's are passed into the approriate INPx.   The VAL field of
> the calc is then passed to the master enable record's DOL, yes I'm in Closed
> loop here.  The first enable, the one in the the same crate, passes to the
> calc fine but I see no changes to the 2nd.  dbpr on the calc and on the
> bo's. shows that the links have been made.  The first bo shows as a DB_LINK
> and the second shows as a CA_LINK.  The forward link from crate 2 also shows
> as a CA_LINK.
> It does not seem that changing the 2nd enable's VAL has any effect at all in
> crate 1.  I checked this by shitching TPRO in the calc record.
> 
> Any hints from the gurus?
> I am using R3.13.0.b4 on the IOCs by the way.

Could you reproduce the problem with the minimum set of records/fields and let
us see the databases.

I looked quickly and did not see any difference between R3.13.0.b4 and the
current release that explains the problem.

Marty Kraimer

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System