Abstract
Recently, many industrial instruments faced the problem of protocol compatibility with the external monitoring and control system. This is due to different environments, field bus devices and protocols. Therefore, it needs to deal with the problem on how to communicate with each other between different protocols. For this purpose, this study is implemented in the main control board and sub-communication board to support the industrial communication protocol conversion. The sub-communication board is designed to ensure the communication connection of CAN bus and Ethernet. The ATmega 2560 microcontroller is used as the processor of the main control board and 4 RS485 serial slots for sub-board are placed too. One of those is used to communicate CAN bus and Ethernet. The sub-communication board is consisted of the ATmega 128 microcontroller, CAN Transceiver and Ethernet connecter. The performance test results have successfully showed the transmission and conversion.
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