| 摘要 |
<p>PURPOSE:To realize the parallel synchronous working operations by securing such a constitution where each controller holds the progress to the next sequence based on a specific code put into a desired position of a working command sequence and a sequence device detects the specific code and transmits a permission signal to each controller to permit the progress to the next command sequence. CONSTITUTION:Each of NC devices 24, 26 and 28 can put a specific code into a desired position of a working command sequence. A sequence device 30 contains the registers 36 and 38 which store the specific codes received from devices 24-28 and the decoders 32 and 34 which detect those specific codes respectively. When the decoders 32 and 34 detect the specific codes received from the devices 24-28 at one time, the permission signals are transmitted to the devices 24-28 to permit execution of the next working command sequence. While the devices 24-28 and the specific codes to the device 30 and hold execution of the next working command sequence until the permission signal is received. Then the devices 24-28 carry out the next working command sequence with reception of said permission signal. Thus it is possible to realize the parallel synchronous working operations by means of plural working tools.</p> |
