Re: Question about text update widget is not updating text problem for phoebus

["Kasemir, Kay via Tech-talk" <tech-talk at aps.anl.gov>]

See https://github.com/ControlSystemStudio/phoebus/wiki/Display-Builder-Compatibility#text-update:

“Some BOY displays misused Text Update widgets as labels by leaving the pv_name empty and instead directly configuring the text.”

 

If you want to display the value of a PV, use a text update widget and configure it’s PV name.

If you have a number but want to display that as a label, add suitable mbbi records to the IOC to convert the states into lables, and then you’re back to simply displaying that PV in a text update widget.

 

 

From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of neu lzf via Tech-talk <Tech-talk at aps.anl.gov>
Date: Monday, September 11, 2023 at 8:36 AM
To: tech-talk at aps.anl.gov <Tech-talk at aps.anl.gov>
Subject: [EXTERNAL] Question about text update widget is not updating text problem for phoebus

Hi all,

 

I use binary SNS version of Phoebus and have two questions to consult you:

 

1)  ​I want to display "OK" text in Text Update Widget according to pv1 value if it is not equal to zero. I write embedded python script for phoebus as follows:

 

# Embedded python Script

from org.csstudio.opibuilder.scriptUtil import PVUtil

pv0=PVUtil.getDouble(pvs[0])

pv1=PVUtil.getDouble(pvs[1])

if (pv1!=0):

     widget.setPropertyValue("text","OK")

else:                 

  widget.setPropertyValue("text",str(format(pv0,".3f")))

 

the above script works well for CSS, while for phoebus it doesn't update text content to "OK" if pv1 is not equal to zero.  I have no idea what the problem of the script is.

 

2)  The script for phoebus doesn't show any error message if there is a syntax error in it, I wonder if I miss configuration to turn this function on and where to turn this function on.

 

Any help will be appreciated and thank you very much in advance.