Design and Implementation of General RTU Based on Embedded Internet

Cooperation of different industry supervisor systems seamlessly and transparently through Internet is a main trend in industry control systems. Low communication speed, inconsistent protocol and closed system are the primary reasons hindering the development of traditional RTU. Analyzing embedded Internet technology and IEC 60870-5-104 protocol, we propose a general RTU design framework-Webit-GRTU. Application example validates that the design is an effective way for traditional RTU to upgrade.