An electronic device is provided. The electronic device includes: a first board that time-divides each of a plurality of parallel data and generates a plurality of packets corresponding to each time period based on levels of each of the plurality of parallel data included in each time period in order to convert the plurality of parallel data into serial data; and a second board that determines levels of each of the plurality of parallel data in each time period to convert the serial data into the plurality of parallel data when the serial data are received from the first board, in which the first board may convert the data into a first signal or a second signal based on the levels of the data included in each time period in order to generate the packets.

An electronic device is provided. The electronic device includes: a first board that time-divides each of a plurality of parallel data and generates a plurality of packets corresponding to each time period based on levels of each of the plurality of parallel data included in each time period in order to convert the plurality of parallel data into serial data; and a second board that determines levels of each of the plurality of parallel data in each time period to convert the serial data into the plurality of parallel data when the serial data are received from the first board, in which the first board may convert the data into a first signal or a second signal based on the levels of the data included in each time period in order to generate the packets.

An industrial network apparatus includes: a control data communicator configured to transmit control data in a priority transmission period that occurs periodically; and a message data communicator configured to determine whether or not to start transmission of message data in a non-priority transmission period depending on a required transmission time of message data and remaining time of the non-priority transmission period that is different from the priority transmission period, and to transmit the message data when determining to start transmission of the message data.