Devices for communication with the object (USO). Purpose, operating conditions and USO modules

This article discusses communication devices with an object (OCD), their purpose, it is indicated what discrete and analog signals are and the design of OCD is considered. The operating conditions of the USO, various USO modules have been studied. At first, processor-based ones are considered and three types of them are identified. Then I / O modules of analog and discrete signals and the features of each type are highlighted.