第1个回答 2009-06-10
Based on the Distributed Control System biological training background of the subject, using Visual C + + programming environment, its software programmed to carry out a detailed design. The distributed control system by a remote monitoring computer, a computer and a number of local management of local controller. In this paper, the focus of management on the local computer to the main program design, remote monitoring summary designed computer program, using Visual C + + based on the dialog box procedure in the plant under the control of the local controller to control the simulation process. The design of specific procedures, including the software interface design, system communication functions as well as system functions to achieve the necessary perfection. Among them, the realization of communication systems is the core content of this article, including the local management of the local controller between the computer and the RS232 serial communication (using virtual serial port of computer main program in the local management and local controller between the simulation program ), as well as local management of computers and remote monitoring of network communication between computers.