| 摘要 |
PURPOSE:To load/unload easily to/from a successively connected system by supplying a control signal to an electronic switch part formed in a specified device to open or close the electronic switch part. CONSTITUTION:When an I/O control device IB is to be separated from the system, a control command Cb is inputted from a setting part 3 to connect a switching part 4 to a contact (b) and start a signal generating part 5. A generated control signal P is inputted to a tri-state TB through the contact (b) of the switching part 4 to turn on the TB. Therefore, signals S from I/O control devices IC-IZ are sent to the terminal A2 of an I/O control device IA through the TB. Namely, the device IB and its peripheral device B are removed from the system. Thus, the peripheral device can be easily disconnected (or connected). |
