Addressable switch assembly for wellbore systems and method

A downhole system comprising:

• a gun string configured to be deployed into a wellbore, the gun string including plural gun assemblies;
• and
• a detonator block attached to a given gun assembly of the plural gun assemblies,
• wherein the detonator block includes a switch assembly, and the switch assembly includes,
• a communication unit (CU) configured to receive, from an external controller, a command to selectively activate one of a corresponding gun assembly detonator and a setting tool detonator;
• a first switch electrically connected to the gun assembly detonator;
• a second switch electrically connected to the setting tool detonator;
• and
• a computing core (CC) configured to close either the first switch or the second switch, resulting in the activation of the corresponding gun assembly detonator or the setting tool detonator, based on (i) a measured amplitude of a parameter (V), (ii) a baseline value of the measured amplitude of the parameter (V), (iii) an increased value of the measured amplitude of the parameter (V);
• and (iv) the received command.