A process chamber with a computer system that controls the process chamber
is connected to one or more sensors, which are used to monitor the
process in the process chamber. The sensors are connected to the computer
system in a client/server relationship, in a way that allows the sensors
to be hot swappable plug and play sensors. The computer system exchanges
various messages with the sensors, synchronizes with the sensors, and
integrates and utilizes data sent from the sensors.