Experimental Physics and
Industrial Control System

Abdalla Al-Dalleh <[email protected]> · Tue, 1 Mar 2016 10:42:42 +0200

Hello Kay

Thank you for your response.

For the simulated PV I found it in the documentation, I found it

straightforward, I did a simple Proof-of-Concept and it should do the thing.

For the PVManager API, I did some search and could not figure out how to

use it in a python script, also I did not get much documentation on what

API functions available, most of the result I found were on how to use

it inside Java code. Do you have any reference on using this API inside

a script?

Thanks in advance!

Abdalla.

On 02/29/2016 04:38 PM, Kasemir, Kay wrote:

Hi:

On Feb 29, 2016, at 7:57 AM, Abdalla Al-Dalleh <[email protected]> wrote:
Is it possible to read a PV value using its string name?

Check the PVManager functions.
There’s something like   pv(‘name of PV’) for that.
In a PVManager formula, you can use (note the backquotes)
    =`name of PV` + 5

2nd Related question, as you all know, when you add a script to CSS it is executed (by default) on a trigger from a PV you add. How to have the same idea but without PVs? i.e., executing a script continuously without an external trigger so for example to update a widget's text value.

You can use “sim:ramp” as a PV that periodically triggers your script.
So it’s still a PV, but one that’s simulated inside CSS.
See online help for description on the simulated PV syntax.

-Kay

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System