Allocation of Network Levels and Organization of Data Transmission in the Workshop Information Space of Digital Production

The article is devoted to studying and solution of the problems of creating a unified information space for a digital industrial manufacture. For effective control of a manufacture, it is necessary to have a complete understanding of the state of production, workshops, technological complexes and each unit of equipment. This article presents practical aspects of developing a platform for collecting, storing, transmitting and analyzing information about the operation of technological equipment. The generalized structure of a workshop information space of a digital manufacture is presented; it based on the allocation of four network levels: real-time networks, workshop-level networks, networks of terminal clients and industrial internet of things (IIoT) networks. The sources of information are special software and hardware embedded in technological complexes (CNC systems, robot control systems, PLCs, Motion Control, PAC etc. The general principle of the platform operation is described. The issues of organization of interaction of the monitoring system with other built-in systems and subsystems of manufacture are considered; their interaction is organized on the basis of industrial standards and communication protocols. The tests of the platform operation on the basis of the developed experimental stand containing technological equipment from different manufacturers are demonstrated.