| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a control state monitor device which detects the abnormality of a host controller with hardware without depending on software and which can prevent a mechanical damage and secure the safety of an operator. SOLUTION: In the device, the host controller 10 gives a control instruction to a driving device 30 through a transmission line 44 so as to monitor the control state for the control system controlling the driving device 30. When the host controller 10 normally operates, an output means 11 provided for the host controller outputs the operation state signal of a period decided by software given to the host controller 10. The monitor device 20 monitors the operation state signal outputted to a transmission line 42 from the output means 11, and gives monitor information on effect that abnormality occurs to the driving device 30 through a transmission line 46 when the period of the operation state signal differs from that decided in software, and interrupts control to the driving device 30 from the host controller 10.</p> |
