Controls

By means of a programmable logic controller, also called a PLC, processes and machines are controlled. The input signals of the controller – the process signals, such as light barriers, sensor signals and operating signals – form the basis for the control task of the PLC. Depending on the automation program running on the PLC, the PLC generates corresponding output signals. To begin, the PLC creates a so-called process image in which the input signals are captured. The program stored in the PLC is then executed. The program can be created in, e.g., KOP, AS, AWL, or FBS. Upon transfer to the PLC, the program is transformed into a machine-readable code.An important requirement on the programmable logic controller is fast signal processing. ... Read more