| abstract |
An implementation method and device for eliminating a PROFIBUS-DP protocol communication chip fault are provided, and the method includes: acquiring the working state of the communication chip (201); when the working state is a data transmitting state, judging whether the duration of the data transmitting state exceeds a preset time threshold, and if so, determining that the communication chip goes wrong (202); and setting the current data transmitting state of the bus transceiver connected with the communication chip to a data receiving state (203). With the present invention, when the communication chip goes wrong and occupies the communication bus, the occupation of the communication bus by the failure chip can be quickly cut off. |