| 摘要 |
PROBLEM TO BE SOLVED: To reduce the possibility of abnormal contact between signals of detection circuits and an internal logic module and to reduce the number of input terminals and the circuit scale between the detection circuits and the internal logic module.SOLUTION: A diagnostic output device includes a selection circuit and an internal logic module. The selection circuit allows one of detection signals sent from respective detection circuits to selectively pass therethrough. At this time, the selection circuit allows, on the basis of an input selection signal, a detection signal sent from a detection circuit connected to an output circuit indicated by the selection signal to pass therethrough. While individually inputting output operation signals to respective output circuits, the internal logic module diagnoses whether an output signal has been outputted in accordance with a corresponding output operation signal or not on the basis of the detection signal which has passed through the selection circuit. |
