Experimental Physics and
Industrial Control System

"Kasemir, Kay" <[email protected]> · Tue, 8 Jul 2014 13:11:09 +0000

Hi:

Have you checked any of the BOY examples included in CSS, or the online help?
Basically, it goes like this:
* Add a script
* Add input PVs to the script
* Access their value via PVUtil.getDouble(pvs[0]), PVUtil.getDouble(pvs[1]), … to access the first, second, .. input PV of the script.
See also screenshots here: http://aps.anl.gov/epics/docs/USPAS2014/1-Monday/CSS_4_BOY_Details.pdf

Note, however, that using scripts should be the last resort.
We start to see people implementing interlock logic, logging, ramping, .. generally IOC functionality inside BOY scripts, which is a very bad idea.
The most prominent use case should be:
Add widget, set PV name, done.
Maybe adjust some properties like "alarm sensitive border = False".
If you have a rule in some very special *.opi to for example highlight a certain machine state, that's OK.
On the other hand, if you need a script in pretty much every of your *.opi, something is wrong.

Thanks,
Kay

On Jul 6, 2014, at 5:17 PM, Tim Waclawski <[email protected]>
 wrote:

> Hello,
> 
>  I've been trying to write a javascript file for a GUI for a particle detector created in CSS BOY. I've been having trouble reading PVs into the script from my softioc. The issue does not lie with EPICS, all of my widgets etc are functioning as they should and I can caget/put from the terminal. I've also tried googling around but I am getting no where.
> All I require is the contents of the VAL field of the EPICS record to be read into the script. The fix for this must be very simple but I cannot get this to work.
> 
> Kind regards,
> Tim

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System