| 摘要 |
PURPOSE:To avoid a case where a non-connection state is caused between 1st and 2nd computers in terms of software by neglecting a device connection switching request given from an operator and inhibiting a switching action when a mini-switch is manually operated within a switch device. CONSTITUTION:A mini-switch 7 is kept at the automatic side together with an automatic/manual switch signal 18 showing an automatic operation mode, a 1st computer 8 kept at the connection side, and a 2nd computer 9 kept at the non-connection side respectively. When a push-button 1 is pushed, a connection switch request signal 2 is applied to both computers 8 and 9 via an AND gate 19. A device 11 and a 2nd controller 13 are connected to the computer 9 after the computer 8 is set in the non-connection state. In a manual operation mode of the switch 7, the signal 2 is prevented by the gate 19 with push of the button 1. Thus the switch of connection is inhibited among the device 11 and 1st and 2nd controllers 12 and 13. |
