A system for monitoring and visualizing the output of a production process, whose output materials or items are inspected by one or more inspection units, may include a communication module to receive data from the one or more inspection units. The dynamically loaded plugin architecture comprises a parent context and a plugin repository. Thus, it is possible to prevent a bus from being distributed to a predetermined master, and it is possible to improve overall performance of a bus system by solving a problem of unbalanced distribution of performance between the plurality of masters. A DC circuit has positive and negative supply terminals each connected to a tap connection of the tapped winding of an imbalance detection transformer. In this manner, no gaps longer than the distributed coordination function Interframe Space are left idle. The resistance through the tube is decreased as the pressure within the container decreases so as to maintain a substantially constant flow rate throughout dispensing.