ABB EL3020 Discrete Volume Control Module

ABB EL3020 Discrete Volume Control Module

EL3020 helps to develop personal computers into simple workstations or work terminals to realize centralized display and centralized alarm functions; on the other hand, it can also develop personal computers into PLC programming terminals, which can be accessed to PLC network through the programmer interface to carry out programming, debugging and monitoring, and ultimately to achieve the technical characteristics of PLC measurement and control equipment with a simple structure, reliable operation, easy maintenance, and easy secondary development. Characteristics.

EL3020 is one of the most typical and basic programming methods, which adopts the graphic language, following the terminology and graphic symbols of relay contacts, coils, series-parallel connections, etc., and adding some symbols that are not found in relay contact control. Ladder diagrams are graphic, intuitive, and very accessible to those familiar with relay representations without the need to learn deeper computer knowledge. It is one of the most widely used programming methods for sequential logic control, discrete volume control, timing/counting control, and other operations.