CANlink is used for vehicle communication, enabling network opening in a variety of fields A program for generating, analyzing, testing, and diagnosing functions. In the vehicle development stage, it can be used for functional confirmation and communication testing of vehicles A communication analysis of a single item and a system that can examine a communication network during the completion phase Procedure. In order to carry out the function and communication test of the vehicle communication module, the Database can be added (*.dbc, *.ldf, *.cdd) is connected to each channel for easy delivery of main content (e.g., information frame, signal value). That is, identification information frame, data length, number According to the content, the signal value can be calculated automatically. In the case of LIN, the Schedule Table in the Database file can be confirmed. Data can be transmitted periodically, including periodic transfer (ms) or event transfer Here.