G29-Wheel Button +- Page in progress. Getting the state of the buttons + and −. Description The unit is designed to receive the status of the + and − buttons from the Logitech G29 controller. Ports Output plus - state (data type Bool) buttons + scalar minus - state (data type Bool) of the button − scalar Parameters Calculation step - calculation step in seconds, with which the value of the current steering state will be obtained `-1 (By default).