in the connections between PLC and HMI is there the possibility to manage them from program variables?

Thank you

Roby

Hi ChristophD,

in the attachment I have visualized what the project will look like...

I can have a certain number of operator panels of the same type but all with different screens and layouts.

When I need to connect one to the PLC (I only have one cpu) I have to be able to do it with a number in a word, attributing a number to a connection

example:

if I write 1 in a variable, I connect the PLC with the HMI connection PLC01

if the variable is 2, I connect the PLC with the HMI connection PLC02

if it is 3, I connect the PLC with the HMI connection PLC03

...............

if it is 22, I connect the PLC with the HMI link PLC22

in this case I can't use the "ChangeConnection" instruction in any way because it doesn't show me any connection.

Maybe they should all be together like in my first post.

But so far it doesn't matter.

In such a configuration where I have many HMIs but can only connect one at a time, how do I do this?

It's possible?

Thank you

Hi Prof. Frink,

I got it right then...

so i can leave it as is. add another ten HMIs in the project and leave them all connected....but if I use only one HMI at a time, won't the profinet network that has more than one HMI go in error?

I would like to avoid seeing the flashing red led on the front of the cpu

thank you

Roby

Hi Prof. Frink

thank you

Roby