Experimental Physics and
Industrial Control System

Thank you Mark, Ralph and Andrew,

the lso record works perfectly! I wasn't aware it existed in 3.15.

I couldn't get Marks's suggestion to use

field(OUT,"$(X)netCDF1:FileName.VAL$ CA")

in the scalout to work, but didn't try very hard, because the lso record does exactly what I need.
Cheers
Malte

-----Ursprüngliche Nachricht-----
Von: Johnson, Andrew N. via Tech-talk <tech-talk at aps.anl.gov>
Gesendet: Mittwoch 22 Juli 2020 17:35
An: EPICS tech-talk <tech-talk at aps.anl.gov>
Betreff: Re: database method to copy string to char waveform

You can also use a long string output (lso) record to copy a string into a waveform or vice versa. This works for me, and will similarly require 3.15 or later:

record(stringout, "so") {

  field(VAL, "This is another string")

}

record(waveform, "wf") {

  field(NELM, 100)

  field(FTVL, CHAR)

}

record(lso, "xerox") {

  field(DOL, "so")

  field(OMSL, "closed_loop")

  field(OUT, "wf")

}

You can swap the DOL and OUT links to copy in the other direction.

- Andrew

On Jul 22, 2020, at 9:19 AM, Ralph Lange via Tech-talk <tech-talk at aps.anl.gov> wrote:

Hi Malte,

Using current 3.15 or EPICS 7, this database:

record (waveform, "wf") {

  field(NELM, "100")

  field(FTVL, "CHAR")

  field(INP, "so.VAL$")

}

record (stringout, "so") {

  field(VAL, "this is a string")

}

does that job for me. Or did I get the problem wrong?

Cheers,
~Ralph

-- 

Complexity comes for free, simplicity you have to work for.

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