o pump communication via a local or a remote link. [0017]FIG. 6 is a schematic drawing showing communication between a pump and a computer system, such as a personal computer, over a local or a remote link. [0018]FIG. 7 is a schematic drawing showing a drug pump in a closed loop system for automated testing of the pump functions. [0019]FIGS. 8A and 8B together show a more detailed block diagram of