Study On Ethernet And USB-GPIB Interface Application In Data Acquisition

With the development of information technology, real time data acquisition and processing had already become essential in modern industrial control. In supervisory control and data acquisition system and automatic testing system that were used widely in industrial control, how to acquire and transmit data accurately and fast had already become a key problem of the system. The existing SCADA and automatic testing system all have their disadvantages on the aspects of communication, but the development of Ethernet technology and USB technology have provided new ways to constitute the communication network of SCADA system and automatic test system.This thesis studied on two aspects: Study on communication scheme of the SCADA system based on the Ethernet and the PC software development of USB-GPIB controller which is applied to the automatic testing system. The main content is as follows:(1) The various communication technologies that SCADA system adopts...