Robotic manipulator arm has an end portion to which one or more end effector appliances can be operably mounted for performing one or more manipulator arm operations. A control system has access to a plurality of different end effector appliance parameter sets which are respectively associated with the plurality of different end effector appliances. A user interface facilitates identification to the control system of one or more of the different end effector appliances which are installed on the manipulator arm. The control system is responsive to the identification to modify a control algorithm.