Powered surgical stapling device

A powered surgical stapler (10) comprising: a housing (110); an endoscopic portion (140) extending distally from the housing and defining a first longitudinal axis; a drive motor (200) disposed within the housing; a firing rod (220) disposed in mechanical cooperation with the drive motor; a loading unit (169) configured to releasably couple to the endoscopic portion, the loading unit including an end effector (160) in mechanical cooperation with the firing rod and an identifier (442) configured to identify the loading unit ; an interrogator (440) configured to interact with the identifier to obtain an identification code uniquely associated with the load unit; and a control system (501) that stores operating parameters related to the force applied to the firing rod (220), where a microcontroller (500) of the control system (501) is configured to identify the load unit (169 ) based on the identification code and automatically select the corresponding operating parameters for the control of the force that is applied to the firing rod (220).