Example image of eyePlorer eyePlorer map for 'Building automation': Distributed control system Computer networking Bus Output Programmable logic controller User interface ARCNET BACnet EIA-485 Ethernet Optical fiber RS-232 Wireless network American Society of Heating, Refrigerating and Air-Conditioning Engineers LonTalk Analogue electronics Binary file Digital Current loop Humidity Pressure Resistance thermometer Sensor Temperature Thermistor Volt Relay Switch Actuator Electric current Pneumatics Transducer Variable-frequency drive Set point Photodetector Digital electronics PID controller Setpoint (control system) Lighting control console Duct (HVAC) Damper (flow) Heat exchanger Variable air volume Blower Fan (mechanical) Auxiliary power unit Transformer Water heating Absorption refrigerator Chiller