| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent the occurrence of an abnormal operation without monitoring a special reset signal by a main control unit side, even if the reset signal is applied only in a sub control unit side. <P>SOLUTION: The sub control unit is provided with a first time control unit which controls a first time length from when the reset of the sub control unit is released to when the communication between the sub control unit and the main control unit becomes available. The main control unit is provided with a communication error detection unit which generates a third reset signal and gives it to the sub control unit when a communication error which does not detect the response from a communication partner within the time shorter than the first time in the communication between the main control unit and the sub control unit. The main control unit is provided with a second time control unit which controls the length of time from release of output of the third reset signal to start of communication processing to the second time that is longer than the first time. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
