declaring and using variables

Hello,

my application is realized with lookout 6.1
Profibus communication with card Applicom

Question:
you can show me how to build a new tag and use it as a state on the synoptic and to indicate alarm status (how they are declared the alarm tag?)

Can you send me the development manual, the online help is not sufficiently clear.

Thank you for kind cooperation

Best Regards

Aldo