Approach to Build a Universal Communication Protocol for Equipment of Different Manufacturers

摘要

The article considers the solution of the actual problem connected with the integration of heterogeneous equipment (PLCs, drives, etc.) with a single CNC system. It formulates basic requirements for the connection mechanism of third-party equipment. It proposes the implementation of its own universal communication protocol with various devices, as well as the creation of a software component - of an external device controller which translates commands of the universal protocol into the commands of the protocol of the external device. The basic principles are considered, and the state machine of the communication protocol is built, the format of data exchange packets is determined. Thus, it is possible to connect devices of different manufacturers working on their own protocols to the CNC system. Two variants of interaction with third-party devices are discussed. The first is the implementation of a universal protocol by a programmable logic controller (PLC) or drive, and the second based on intermediate software module that interacts with third-party devices.