Research on Wireless OPC DA Server for Modbus

Based on the study of the drawback of traditional wired automatic control system and current wireless remote monitoring system for Modbus, and the utilization of a Uniform Wireless OPC DA Server, a new solution to construct a wireless OPC DA server for Modbus was given out. It used mobile communication networks and OPC technology. Also, Modbus request command strategy was discussed detailed. It reduced the data bytes transferred through mobile communication network when refreshing OPC DA objects, thus, lowered the running cost and eased the mobile network's burden. Dynamic programming was introduced to work out the command strategy; recursion was used to implement the strategy. By using the solution, a low-running-cost wireless Modbus monitoring application can be built conveniently using an OPC-supported visual configuration software tools.

[1]  Wang Jingjie,et al.  Application of ModBus Protocol in Wireless Monitor System , 2005 .

[2]  Zhang Yu,et al.  Remote monitoring application based on Modbus and China unicom 3G , 2010, 2010 IEEE International Conference on Intelligent Computing and Intelligent Systems.

[3]  Xiaoping Zhou,et al.  Design and implementation of a uniform wireless OPC DA Server , 2011, 2011 International Conference on Mechatronic Science, Electric Engineering and Computer (MEC).

[4]  Konstantinos Koumpis,et al.  Wireless Industrial Control and Monitoring beyond Cable Replacement , .

[5]  F. H. Ramírez Leyva,et al.  Wireless system for electrical networks testing based on MODBUS protocol , 2004, 14th International Conference on Electronics, Communications and Computers, 2004. CONIELECOMP 2004..

[6]  Zhu Yu-tang.  Constant pressure with variable frequency water supply control system based on GSM wireless network , 2008 .