G - Physics – 05 – B
Patent
G - Physics
05
B
G05B 23/02 (2006.01) G05B 19/048 (2006.01)
Patent
CA 2686677
A control apparatus has a communication control unit communicably connected to a first communication channel, at least a portion of which constitutes a serial transfer operation. The communication control unit transmits/receives information with respect to an equipment under control via a second communication channel, a portion of which constitutes a parallel transfer operation. The apparatus comprises: a communication channel diagnostic unit for diagnosing an abnormal event such as an open and stuck-at of a parallel transfer portion of the second communication channel under such a condition that a data transfer operation in the second communication channel is interrupted. A signal for instructing an initiation of a diagnosis via the first communication channel is transmitted to the communication channel diagnostic unit.
Bandou Akira
Funaki Satoru
Furuta Yasuyuki
Ishikawa Masakazu
Iwasaki Yu
Hitachi Ltd.
Hitachi Information & Control Solutions Ltd.
Kirby Eades Gale Baker
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