| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the controller of an agricultural machine, capable of switching off set output of an outputting device to enhance the safety of the machine, when outputted communication signals from a central controller are stopped for a constant time or longer. SOLUTION: Since a central controller 51 and plural terminal controllers 52, 53 disposed in output devices in the sections of the frame of a working machine in a dispersed state have IC chips 60, 69 and 70 for communication, respectively, the terminal controllers 52, 53 and the central controller 51 can communicate detected signals from a sensor 54, etc., and outputted signals to valve 62 through connected wire communication means. When the terminal controller for outputting communication signals into outer members such as a valve 62 among the terminal controllers 52, 53 does not communicate for a constant time or longer, the terminal controller is judged to be abnormal, and the output is subsequently stopped. The terminal controllers 52, 53 for outwardly outputting the signals are thus switched off to enhance the safety of the working machine.</p> |
