Development of Remotely Monitoring and Control System for Siemens 840D sl NC Machine Tool Using Snap 7 Codes

摘要

Based on the understanding of the communication methods and the structure and architecture of databases/data blocks of numeric control (NC) system, an open source communication suite designed specifically for Siemens NC system, Snap 7, is used to realize data acquisition from Siemens 840D sl NC system of which the communication interfaces are industrial Ethernet. Furthermore, monitoring system for display and analyses of the production processing state is developed and its reliability is evaluated.