Introduction - If you have any usage issues, please Google them yourself
In the field of industrial control, PLC as a reliable controller is applied widely. But it also has some shortcomings, namely, its data processing ability of computer is weak, cannot offer users good interface, etc. While the computer just can make up the deficiency of PLC, he not only has a strong data processing and management ability, and can offer customers very beautiful and easy-to-use interface. PLC and computer will achieve system, but can timely data collection, storage and handling and use good data, the key is the combination of PLC and computer communication between. Because of the Microsoft MScomm communication control with rich and serial communication is closely related to the properties and events, provided for all kinds of operation, and the serial port in serial when programming is very convenient, but also in DELPHI easy in use.