Example image of eyePlorer eyePlorer map for 'Programmable logic controller': Assembly line Automation Computer Electromechanics Non-volatile memory Real-time computing Cam timer Relay Changeover Electrician General Motors Bedford, Massachusetts Dick Morley AEG Gould Electronics Schneider Electric North Andover, Massachusetts Ladder logic Instruction list State diagram State logic Very high-level programming language Computer terminal Magnetic core memory Computer network Distributed control system Process control Desktop computer Output Actuator Sensor Switch Electric motor Hydraulics Pneumatics Solenoid User interface EIA-485 Ethernet RS-232 BACnet Communications protocol Modbus DeviceNet Fieldbus Profibus List of automation protocols SCADA P2P Peer-to-peer