Re: Formatting StreamDevice input

[Dirk Zimoch <dirk.zimoch@psi.ch>]

Hello Elmer

On 21.07.2014 20:36, Elmer Pensack wrote:
> I have a timer device that provides data over a RS232 serial interface.
> I’m using StreamDevice to grab the data and publish as PVs. The data
> contains several times. All the times come in as an ASCII string
> containing days, hours, minutes and seconds and I'm writing them to
> stringin PVs. However, the data does not contain any separators, so the
> data coming in looks something like 000024015 (i.e. 000 days, 02 hours,
> 40 minutes, 15 seconds). I know the ‘in’ command needs to match the
> incoming data exactly or else it is discarded, but is there a way to add
> formatting to the PV that is NOT in the data? All I want to do is add a
> ‘:’ separator between each part, so the PV value will be like
> 000:02:40:15. Any suggestions?
>
>
> Thanks!

At the moment, it is not possible to insert additional characters while 
parsing a string. But this may be an interesting idea. You can use 
"%T(%j%H%M%S)" as suggested by Thomas to convert it to a double value 
(seconds) or to an EPICS time stamp with "%(.TIME)T(%j%H%M%S)", but not 
to a different string.

I suggest that you have a look at the scalcout record in SynApps.
http://www.aps.anl.gov/bcda/synApps/calc/R2-4/sCalcoutRecord.html
That can do string manipulation.

Dirk