Design of CAN bus intelligent module and OPCDA server

The CAN bus intelligent module and OPC data access server program are designed in his paper. This system is able to obtain the real-time data of equipment through the intelligent module, and can be accessed by any OPC client and update data. The module is designed using C8052F023 single-chip microcomputer and SJA1000 CAN communication interface controller, and the OPC server is designed based on WTOPCSvr.dll which is a OPC rapid development kit. The test result of this design shows that it meets the corresponding standard, and is of practical value.