Thanks for your reply.

I give the variable "1"when the switch is pressed Off ( in the first IF-THEN).
In the second IF-THEN, I call the variable X when the switch is pressed On. --> The error comes with NIL..

Of course I can start before the first IF-THEN with x = 0.
But When x become 1 in the ...

Standard is a variable a global variable. But when I call a variable in a "If then" Statement the variable is NIL. Outside the actual "If then" statement I declare the variable x.
How to use a variable in the whole program and not only in the "If then"statement?.

example to determine the variable ...

Thanks all,
It works..I can control my Visonic alarm panel to Arm,Home and disarm.

How can I switch the x10 switches connected to my Visonic alarm system?.
Thx

I'm Using ClearOS which is based on Centos 7.
I'm also trying to install Domoticz on my server according this page but after the
cmake -DCMAKE_BUILD_TYPE=Release CMakeLists.txt
I got this output and not able to finish the install.

Below the output with errors and Make is not possible. I update ...