The scene in the industrial environment, we often through the interface PLC and computer communications will link up the realization of human-computer interaction. Thus remote control. No duty to achieve the functions in this context, human-computer interface has also done a very good offer a lot of agreement , We can be as long as the procedures for the preparation of the upper. But there is a human-computer interface less data storage interface is not very friendly but also weaknesses.
For example: in the process control, since the industry is very scattered at the scene, I / 0 points large variety of instruments working environment is very poor, using data acquisition card and LabVIEW development platform to complete the data acquisition and control is clearly undesirable. Taking into account the process control parameters in the process of change is not quickly and precisely PLC data acquisition card can be overcome in the process of inadequate control, and has higher performance than, thus the adoption of a PLC for the next crew to work with LabVIEW software Computer-controlled machine for the development platform, or through the RS232 Serial RS485 communication with the PLC, the realization of the industrial site monitoring and field data analysis.
IPC in this regard can be achieved very good supplementary. Both in complex industrial environment on good control, but also provide friendly and convenient for handling the operation. Realization of convenience. Coupled with the companies cooperating with the United States NI LABVIEW achieve specific functions. Stability and reliability will be greatly enhanced.
LabVIEW is the virtual instrument engineering laboratory table (LabVIEW Virtual Instruments Engineering Workbench), short for National Instruments is the development of the virtual instrument software development platform, its powerful flexibility, and can be widely used in automatic measurement systems, industrial process automation, Simulation Laboratory, and other fields.
LabVIEW use graphical programming language, simple and straightforward, great development time-saving procedures, LabVIEW can provide rich library function and function modules can be programmed to complete a variety of complex tasks.
Mitsubishi PLC realizes the computer and PLC through communication module FX2N carries on the communication, thus realizes the remote control and the management. this article uses the LabVIEW achievement to develop the platform, unifies the hypothesized instrument technology and the PLC technology together, displays the respective superiority, completes PC machine and the PLC serial port correspondence, the development superior machine control system, realizes the good man-machine contact surface and the reliable systems control. Mitsubishi PLC through the communications module FX2N PLC for the computer and communications so as to achieve remote control and management. By using virtual instrumentation (LabVIEW) to achieve PC serial communication with the PLC.
