A method for controlling operation of a solar protection installation (I), the installation (I) comprising at least: - an occultation device , the occultation device comprising at least: -- a top bar , -- a bottom bar , and -- a screen , the screen being arranged between the top and bottom bars , - a motorized drive device (17; 117), the motorized drive device (17; 117) being configured to deploy and fold the screen , the motorized drive device (17; 117) comprising at least: -- a first electromechanical actuator (18; 118), the first electromechanical actuator (18; 118) being configured to move the top bar , -- a second electromechanical actuator (20; 120), the second electromechanical actuator (20; 120) being configured to move the bottom bar , and -- a control unit (30; 130), the control unit (30; 130) being configured to control the first and second electromechanical actuators (18, 20; 118, 120), characterized in that the control unit (30; 130) controls: - the first electromechanical actuator (18; 118) so as to move the top bar and then the second electromechanical actuator (20; 120) so as to move the bottom bar depending on the position and/or movement of the top bar ; or - the second electromechanical actuator (20; 120) so as to move the bottom bar and then the first electromechanical actuator (18; 118) so as to move the top bar depending on the position and/or movement of the bottom bar . - an occultation device , the occultation device comprising at least: -- a top bar , -- a bottom bar , and -- a screen , the screen being arranged between the top and bottom bars , -- a top bar , -- a bottom bar , and -- a screen , the screen being arranged between the top and bottom bars , - a motorized drive device (17; 117), the motorized drive device (17; 117) being configured to deploy and fold the screen , the motorized drive device (17; 117) comprising at least: -- a first electromechanical actuator (18; 118), the first electromechanical actuator (18; 118) being configured to move the top bar , -- a second electromechanical actuator (20; 120), the second electromechanical actuator (20; 120) being configured to move the bottom bar , and -- a control unit (30; 130), the control unit (30; 130) being configured to control the first and second electromechanical actuators (18, 20; 118, 120), -- a first electromechanical actuator (18; 118), the first electromechanical actuator (18; 118) being configured to move the top bar , -- a second electromechanical actuator (20; 120), the second electromechanical actuator (20; 120) being configured to move the bottom bar , and -- a control unit (30; 130), the control unit (30; 130) being configured to control the first and second electromechanical actuators (18, 20; 118, 120), - the first electromechanical actuator (18; 118) so as to move the top bar and then the second electromechanical actuator (20; 120) so as to move the bottom bar depending on the position and/or movement of the top bar ; or - the second electromechanical actuator (20; 120) so as to move the bottom bar and then the first electromechanical actuator (18; 118) so as to move the top bar depending on the position and/or movement of the bottom bar . <EOS>