Hello targatte,

at first welcome to the forum.

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Hello,

I have the project to modify a machine whose automaton is a LOGO8 by adding a HMI KP300,

my problem is that I can not change the views depending on the active outputs of the controller (output Q1 displays view 1, output Q2 displays view 2 ...).

The PLC and the display communicate well.

I use LOGOsoft V8.1 and TIAportal V13.

Thank you for your answers.

If I understand you correctly, you want an automatic picture change. Is this right?
Or do you only want to visualize the states of the outputs? 

I have to apologize, my statement was wrong.

I thought that a picture change would only be possible with a control order.
But it is also possible through a trigger variable.
Attached is a TIA V13 project for the KP300, a small LOGO! program and a PDF file.
The PDF file should only point you to the most important thing.
In the TIA project, of course, you have to adjust the IP addresses to your devices.
The connection only has to be set up on the TIA project side, not in the LOGO! program.

Here's also a link to a Siemens FAQ:

How do you configure a screen change via the controller in WinCC (TIA Portal)?