This line with conveyor belt allows the introduction to pneumatic components to be combined with programming on any automated system (in positive or negative logic). A manual control box delivered with PNEU99 can be connected to the input-output socket in place of the PLC. The manual control box drives the actuators and shows the state of the sensors. It thus facilitates the purely pneumatic study of the components, the problems linked with speed of displacement, cushioning the end of travel, control of rate, needle screw, accuracy of magnetic detectors etc.