Experimental Physics and
Industrial Control System

"Hammonds, John" <[email protected]> · Thu, 10 Dec 1998 16:02:40 -0600

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.

John

----------------------------------------------------------------------------
John P. Hammonds
Intense Pulsed Neutron Source
Argonne National Laboratory
(630)252-5317

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System