Based on the distributed control system of biological culture, this paper designs its software function in detail by using Visual C++ programming environment. The distributed control system consists of a remote monitoring computer, a local management computer and several local controllers.

This paper uses Visual C++ programming environment to design the functions of its software. Distributed control system. This collection & distributed control system consists of a remote monitoring computer, a local administrator computer and several local controllers.

This paper mainly introduces the design of the main program of the local management computer, briefly designs the remote monitoring computer program, and simulates the control process of the controlled object under the control of the local controller with the dialogue program based on Visual C++.

This paper mainly introduces the design of the main program of the local administrator computer and the brief design of the remote monitoring computer program, and realizes the simulation of the control process of the controlled object under the control of the local controller by using the dialog program based on Visual C++.

The specific design work includes the design of each program software interface, the realization of system communication function and some necessary perfection of system function. Among them, the realization of system communication function is the core content of this paper, including RS232 serial communication between local management computer and local controller (this paper uses virtual serial port between local management computer main program and local controller simulation program) and network communication between local management computer and remote monitoring computer.

The practical work includes the design of various program software interfaces, the realization of system communication functions, and some necessary supplementary work for system functions. The realization of system communication function is the core, which includes RS232 serial communication between local administrator computer and local controller (here, virtual serial port is used for communication between main program of local administrator computer and remote monitoring computer) and network communication between local administrator computer and remote monitoring computer.

Keywords: distributed control system software function, Visual C++, serial communication, network communication

Keywords: software acquisition function; Distributed control system, Visual C++, serial communication, network communication.