Re: Automated ELOG entries from IOC

[Maren Purves <m.purves@jach.hawaii.edu>]

Hi John,

On Mon, 23 Jan 2006, John Dobbins wrote:

> It seems non-trivial to manipulate lengthy strings in an IOC (use waveform 
> record?) so I was thinking it might be easier to create device support that 
> reads in a file of pre-canned messages on start-up and then have an output 
> record pass to device support an index to one of these messages.

we use subroutine records for some applications where this is required,
in some cases translating into bos/mbbos. If all you need out of a 
device response is an inidication that something is OK or not OK a bo 
will of course do, and you can hide all the details in the subroutine 
record, or pass the details into a string record.

> However I can also think of other ways to do this, e.g. an external script 
> that monitors a particular record via Channel Access and does the appropriate 
> things when it sees a change.

Depending on where you need this (whatever the appropriate thing is) done
you may be ble to use the alarm handler for this.

> I am open to ideas. Thanks,

Not sure this helps,

Maren Purves
UKIRT

> John Dobbins
> Laboratory of Elementary Particle Physics
> Cornell University
>
> p.s.  What type of person write to Tech-talk at 10:00 PM ???

It's only 18:30 where I am. Working at a telescope I can think of
good occasions to write to tech-talk late at night.