Error 500 while creating visa device about pyscada HOT 3 CLOSED

Dear @clavay,

thank you very much for sharing this information with me, i will fix that in the next release.

I saw that you added some new visa devices in your local branch, does everything it work? when you like you could add a pull request, so that i can include your devices to the project.

best wishes,
Martin

from pyscada.

Hi @trombastic,

I'm working at the university of Pau (France) to work on a system to make practicals exercises remotely. (and we are planing other applications or monitoring or remote control) (you can find "Laborem")
I started this year and I'm new with everything (python, django, pyvisa, pyscada, github...) to use open source tools.
I found your job very good and want to improve it too.
I would be proud to make a pull request with what I made and I'm terminating to finish a first version of the code to do it.

Actually I'm dealing with the ihm part and adapting your code to plot chart with different x axis than the time and logarithm scale (Bode diagram) and I have did it but now there is the part of integrate how to choose what type of x axis you want in the definition of the chart.
I don't know if something I'm doing could interest you but I will commit my changes and make a pull request that you can take what you want.

For the devices using visa, it's working well but I upgrade to the dev version of pyvisa-py because it's faster to communicate but there is a little bug sometimes.
I add a write function to visa.
I don't see how to read string from an instrument. (*IDN for example with visa) Is it possible ?

Other things :

• How to activate the debug in JS and where is the debug ?
• There is always the "zoom on x axes", "zoom on y axes", "+2h", and timeline even is there is not any chart. Is it necessary ?

Cheers,
Camille

from pyscada.

Dear Camille,

a short response to your questions:

I don't see how to read string from an instrument. (*IDN for example with visa) Is it possible ?

there is a VariableProperty Model in pyscada.models, the intention for this Model was to have a place to store additional data for a variable that don't fit in the RecordedData or the meta data in the Variable Model. Maybe you could store the strings there.

from pyscada.models import VariableProperty
from pyscada.utils import datetime_now
from datetime import datetime

vp = VariableProperty(
             variable = var,
             property_class='data_record',
             value_string=string_data,
             timestamp=datetime_now())
vp.save()

How to activate the debug in JS and where is the debug ?

in Chrome and firefox (under Linux at least): right-click an then inspect, or shift+ctrl+c

There is always the "zoom on x axes", "zoom on y axes", "+2h", and timeline even is there is not any chart. Is it necessary ?

this feature is relatively new, in the use-cases we using PyScada at the moment there was no need to hide the timeline-bar but it should be easy to add, maybe under options the default value could be than changed in the View admin form.

Best wishes,
Martin

from pyscada.