Hands-On Industrial Internet of Things

PLCs

PLCs originated in 1968, when General Motors United provided the desired features for a new generation of controllers to be used in their production facilities. Currently, a PLC is based on a multiprocessor system, with network integrated abilities that are able to perform very complex functions. It is based on almost the same technologies as a usual computer, but adapted to the control of industrial processes. A PLC consists of several main components—a processor, I/O, a power supply, a remote I/O, a fieldbus, PID, a servo, and an encoder. It also contains other components that are available for specific uses as independent modules. The cabinet or rack contains and encloses all of the modules, ensuring the first deep integration from ...