Experimental Physics and
Industrial Control System

Gerrit Kühn via Tech-talk <tech-talk at aps.anl.gov> · Mon, 6 Nov 2023 08:15:57 +0100

Am Fri, 3 Nov 2023 17:05:38 +0100
schrieb Gerrit Kühn via Tech-talk <tech-talk at aps.anl.gov>:

> > > Another issue I have been running into with this is the order of
> > > record initialisation.  

> > For this (within one IOC) you can use the PHAS field of a record. 
> > Records with smaller PHAS values are processed before records with 
> > higher values.  

> Great, thanks for the pointer. I hadn't seen that one before.

Unfortunately, setting PHAS did not help with the issue I am trying to
resolve. Probably I did not describe the situation with enough details:

I have a mbbo record that is using streamdevice. The protocol doing the
setting part has an @init handler that should use input from a different
channel via redirection. This channel is not initialised at that point
(empty).
It looks like @init is happening too early. Even setting the redirected
record to PHAS=0 and the initialising one to PHAS=10 does not change this.
Loading the needed records with a separate dbLoadRecords statement in
st.cmd does not help, either.

Is there a way to have selected records initialised before @init is being
run?

cu
  Gerrit

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System