Research And Development Of SCADA System With OPC

The paper researchs the OPC technology applied in gas transportation SCADA system, in order to probe into the main difficulty and the way to resolving it existing in the presenting SCADA system. Also we can probe into the status and the function of OPC technology in business enterprise information system. So that we can make speed the overreach of the OPC technology and impel the information integration of the industry controls software and the business administration software.The complet block design and the come true scheme of SCADA system afer inported OPC technology was decribed in this paper. Also the function of the slave station, communication network, control center was been developed and carried out in this paper. So the communication problem between the bottom layer and the devece adopting nonstandard protocol was been resolved. At the same time we perfect the network communication function of low class communication protocol. With COM/DCOM technology of the platform of Microsoft, we design and realize the OPC DA Server application program. All of this is very useful to the communication between industry control and enterprise administration.This paper reseaches some existing problem in most of the SCADA system and brings forward resolving scheme. Thereinto, the most reserch findings have been applied in practical application.