Introduction - If you have any usage issues, please Google them yourself
This kind of communication component is used for PC and programmable logic controller (PLC), intelligent instrument and so on, through the serial port carries on the data communication. The component adopts the form of dynamic link library file (*.DLL). In the project project of the PC system, the component is referenced, and the corresponding attributes and method functions are invoked, so that the data exchange between PC and PLC can be realized quickly. The stable and efficient internal agreement, without having to write the PLC program with direct access to the PLC memory, communication and fast response; built in multiple independent threads of the dynamic management of connection structure of multi thread and support for external application, for use in industrial automation control system based on PC language