| 摘要 |
<p>PURPOSE:To disconnect a power source of a data processor even in case an abnormality is generated in a control program and it has become a stall state, by sending out a power OFF signal, and disconnecting the power source of the data processor, when a timer for monitoring the stall state of the control program has detected an overflow. CONSTITUTION:When an abnormality is generated in a control program and it has become a stall, a reset signal comes not to be inputted to a monitoring timer 20, therefore, the timer 20 generates a monitoring timer over-flow signal. Its signal is informed to a panel control part 16 through a signal line 104. When a power source OFF switch of a panel 19 is depressed under such a state, a panel control part 16 sends out a power OFF signal to a power source control part 13 through signal line 103. The control part 13 disconnects a power source of a data processor 2 through an interface 102.</p> |
