Controllers are digital electronic systems that in the simplest case work with four components (inputs, outputs, operating systems and interfaces). These four components can be used to control machines or systems, as the name implies. Programmable memory allows user-oriented control statements to be stored and executed via the inputs and outputs.
Gateways are the central point of contact for all control units. You can transmit and evaluate all information and data, so all ECUs can communicate and work with each other. They are used primarily in the automotive sector, where they control and coordinate all control units in the vehicle. This enables error-free and secure communication between all controllers.
Relays are electromechanical switches and are used to turn circuits on, off and on. They offer the ability to control a circuit with high voltages and currents with a small circuit. This allows a relay to be used very well, for example, as a protection relay on machinery and equipment, to switch off immediately if the operating values are incorrect. In addition, they are very well suited to control time-delayed circuits of any kind.
An HMI-system serves as an interface between the operator and the process. Using an HMI-system, production processes can be coordinated and controlled. It reproduces production information in a simple representation so that the operator can react based on this information. This enables companies to compensate for the ever-increasing demands and increasingly complex processes on machines and plants.