| 摘要 |
PROBLEM TO BE SOLVED: To reduce the load of a monitoring CPU 111 on monitoring the state of a rotary encoder RE and improve the stability and safety of an overall electronic control system. SOLUTION: The monitoring CPU 111 is built in the rotary encoder RE. The built-in monitoring CPU 111 performs controls, changing-over from its monitoring items to a monitoring item to be monitored by internal interrupt, while its rotation is halted to transmit monitoring results as to whether an internal circuit is normal to an electronic control unit 207 and change over to a monitoring item to be monitored by external interrupt during its rotation operation, to transmit monitoring results as to whether pulse signals are normal, to the unit 207. COPYRIGHT: (C)2009,JPO&INPIT |
