How to switch the active application via script

2020-02-27T14:59:28.629000Z

Thank you Markus!
Your first solution runs perfect.
Now the next problem is knocking on the door To create the gateway and set the device active.
But if I need help I'll open a new thread with a fitting topic.
Alfred

How to switch the active application via script

2020-02-27T14:59:26.864000Z

Originally created by: M.Schaber

Hi, ALoeffler,

There are several possibilities to solve your problem: The first one is to search from the device upwards:

proj = projects.primary
dev = proj.find('PLC_A')[0]
app = dev.find('Application', recursive = True)[0]
proj.active_application = app

The second one is to search the application by path:

proj = projects.primary
dev = proj.find('PLC_A', 'SPS-Logik', 'Application')[0]
proj.active_application = app

A third way is to check the name of the parent:

for far in findApplicationResult:
    if far.parent.parent.get_name() == 'PLC_A':
        # do something here...

In your code, the problem was the following line:

Zitat:

     appPlcFound = far.parent.parent.find( "PLC_A", False )

Here, you're going down 2 steps from the application object (far.parent.parent points to the device in your project), and then you search for a child of that device with the name "PLC_A" non-recursively, which none exists.

Note that the find() methods always return a list of objects, because each search could return more than one result.

HTH,
Markus

How to switch the active application via script

2020-02-27T14:59:26.237000Z

Hi, thanks for this quick answer!
Unfortunatelly I found 3 appplication objects. The given project structure:

Project-PLC_A--SPS-Logik---Application-PLC_B--SPS-Logik---Application-PLC_C--SPS-Logik---Application

Is there an easy way to detect the right application via parents property? Something like app.parent.parent ?

print( "findApplicationResult.Count ", findApplicationResult.Count) 
for far in findApplicationResult:
    appPlcFound = far.parent.parent.find( "PLC_A", False )
    print( "appPlcFound.Count ", appPlcFound.Count ) 
    if appPlcFound.Count > 0:
        print( "appPlcFound" ) 
        proj.active_application = appPlcFound[1]
        break

Does not work, appPlcFound.Count = 0 three times. I am also not so much into Python so I am just guessing and trying...

How to switch the active application via script

2020-02-27T14:59:25.595000Z

Originally created by: M.Schaber

Hi,

Projects have a property active_application, which you can use to query or set the active application.

proj = projects.primary
app = proj.find('Application', recursive = True)[0]
proj.active_application = app

How to switch the active application via script

2020-02-27T14:59:23.943000Z

I have one given project, which keeps 3 applications for 3 different plc-types. ( I have no influence to this project structure, so I can not change it)

For downloading them by script I am guessing I have to change the active application. How can I get to the application to set active?
Or how can I change the active application at all?

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