| 摘要 |
<p>PURPOSE:To enable a slave station side to control a master station in a data communication system between the master station and plural slave stations. CONSTITUTION:A signal line 24 is installed between a master station 10 and a slave station 11 making data communication via a data communication line 23 and the slave station 11 is provided with a signal transmission section 113 outputting a signal notifying a defect of a reception data obtained by a local processing section 111 through a transmission control section 112 or a signal to request rising of power-on of the master station 10 not arisen yet by the slave station 11. On the other hand, the master station 10 is provided with a detection section 103 detecting a signal outputted from the signal transmission section 113 of the slave station, a storage section 104 storing a signal inputted via the slave station 11 and the signal line 24 and a control section 105 to reset the processing of the master station 10 or raising the power based on the result of storage in addition to the local processing unit 111 and a central processing unit 101 communicated through the communication control section 102.</p> |
