Experimental Physics and
Industrial Control System

Tim Mooney <[email protected]> · Thu, 2 Dec 2010 15:28:31 -0600 (CST)

Pierrick,

I don't have sample code that fits your application.

Andrew's reply marks out the way I would go if I had to do it.
(I forgot that waveform and aSub permit elements of type DBF_STRING.)

I guess I'd be inclined to leave the arrays in the aSub record,
rather than push them out to waveform records, because the aSub
provides an easy way to get at individual elements.

Tim

----- Original Message -----
From: "Pierrick Hanlet" <[email protected]>
To: "Tim Mooney" <[email protected]>
Cc: [email protected]
Sent: Thursday, December 2, 2010 1:23:55 PM
Subject: Re: string array PV

Thank you Tim.
I'm interested in a string of fixed length (12 chars), but up to several hundred elements.
Does this work with the aSub record? I am actually using an aSub record to write the
arrays, strings and more. Ultimately, I would like to put these strings into an archiver.
My hope was to use the aSub to fill waveform records for the values, and some sort
of string array for the channel names.

Might you have sample code in which I can carry around the array of strings?
Thank you,
Pierrick

-----------------------------------------------------------------------------------------
Pierrick Hanlet
Fermilab, P.O. Box 500, M.S. 122
Batavia, IL 60510
[email protected]
(630)840-5555/8871/6039         office/lab/fax 
http://www-d0.fnal.gov/~hanlet 

"Whether you think you can or think you can't, either way, you are correct" -- Henry Ford

----- Original Message -----
From: Tim Mooney <[email protected]>
Date: Thursday, December 2, 2010 1:02 pm
Subject: Re: string array PV
To: Pierrick Hanlet <[email protected]>
Cc: [email protected]

> Pierrick,
> 
> The sCalcout record has a very limited ability to do this.  It can
> hold 12 strings of 39 or fewer characters, and provides a calc expression
> for selecting one of the strings with an index number.
> 
> The aSub record can also be coerced into implementing something like a 
> string
> array. It could hold 19 strings of arbitrary length, with fields left 
> for an
> index and an output string.  The aSub record could also be used to implement
> a very large array of fixed-length strings, with a character buffer, 
> an index,
> and input/output character fields.
> 
> Tim
> 
> 
> ----- Original Message -----
> From: "Pierrick Hanlet" <[email protected]>
> To: [email protected]
> Sent: Thursday, December 2, 2010 12:44:27 PM
> Subject: string array PV
> 
> 
> Hi,
> Is there any record type that can contain an array of strings?
> Thanks,
> Pierrick
> 
> -----------------------------------------------------------------------------------------
> Pierrick Hanlet
> Fermilab, P.O. Box 500, M.S. 122
> Batavia, IL 60510
> [email protected]
> (630)840-5555/8871/6039         office/lab/fax 
> http://www-d0.fnal.gov/~hanlet 
> 
> "Whether you think you can or think you can't, either way, you are 
> correct" -- Henry Ford
> 
> 
> -- 
> Tim Mooney ([email protected]) (630)252-5417
> Software Services Group (www.aps.anl.gov)
> Advanced Photon Source, Argonne National Lab
> 

-- 
Tim Mooney ([email protected]) (630)252-5417
Software Services Group (www.aps.anl.gov)
Advanced Photon Source, Argonne National Lab

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System