Logikcontrollers

Logikcontrollers are a class of digital control devices designed to implement logical decision making in automated systems. They combine input processing, state storage, and output control into a single hardware-software platform. The term is used by some vendors and researchers to emphasize logic-based control distinct from general-purpose computing.

Hardware and software typically include a processing core, input modules to sense sensors, output modules to drive actuators, nonvolatile memory to preserve state, and communication interfaces for networking. Programming models often rely on rule-based logic, finite state machines, or standard PLC languages such as ladder logic, function block diagrams, and structured text. Many logikcontrollers support real-time operation, determinism, and safety interlocks, with time-triggered or event-driven execution semantics.

Common applications include industrial automation, process control, building management, and robotics, where predictable, transparent control decisions are important. They may operate independently or as part of a larger control system, exchanging data with SCADA, MES, or other controllers.

Relationship to PLCs: Logikcontrollers share many concepts with programmable logic controllers, though some implementations distinguish themselves by focusing on formal logic processing or specialized rule engines. Standards such as IEC 61131-3 influence programming styles in many implementations, but not all logikcontrollers conform to this standard.

See also: Programmable logic controller; Finite state machine; Real-time control; Embedded system.