| 摘要 |
<p>A read-only sequence control system comprises a control unit having an EPROM and a plurality of relays responsive to data outputs of the EPROM for controlling a machine. The system has a first sensor for detecting an entrance of work in the machine and a second sensor for detecting discharge of the entered work. When the second sensor does not detect the work at an end of working cycle, the control unit operates to stop the machine.</p> |
