The SC-LON controller is a flexible unit designed around the Neuron 3150 chip which can operate either as a slave in a LON network or as a standalone controller. When operating in a networked environment, the network consists of a number of slave control units (SC-LONs) and one PC-based network master (PC-LON). The PC-LON can control the SC-LONs and retreive status and event data from them.