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|1. (WO2018078747) TRANSFER DEVICE AND FRAME TRANSFER METHOD|
|Applicants:||MITSUBISHI ELECTRIC CORPORATION
|Title:||TRANSFER DEVICE AND FRAME TRANSFER METHOD|
The present invention is provided with: an FCS code calculation unit (21) for calculating a first code that is the FCS code of a received frame; an FCS check unit (22) for comparing a second code that is the FCS code stored in the received frame with the first code and outputting a first comparison result that indicates that the two compared codes match or do not match; an inverted FCS check unit (23) for comparing a third code that is the second code each bit of which is inverted with the first code and outputting a second comparison result that indicates that the two compared codes match or do not match; an error determination unit (24) for determining the state of an error in the received frame on the basis of the first comparison result and the second comparison result; and an FCS update unit (42) which, when the second comparison result is a mismatch, updates the second code with a fourth code that is the first code each bit of which is inverted when transferring the received frame to a device at a subsequent stage.