| 摘要 |
<p>A coordinative operation system for a CNC (computerized numeric controller) used for a transfer line or the like. Each CNC (10, 20) comprises a CNC control section (11, 21), a switch circuit (12, 22) for switching input/output signals, a RAM (13, 23) connected to the switch circuit (12, 22) and used for storing the input/output signals, and a PMC (programmable machine controller) (16, 26) connected to the RAM (13, 23), and a serial tranfer control circuit (15, 25) which are connected to the RAMs (13, 23) and transfer the input/output signals with other CNCs. The PMC (16) is designed so that it can receive the input/output signals of other CNC (20) by the serial transfer control circuit (15) or can transmit them. The CNCs (10, 20) can input/output their input/output signals through the circuits (15, 25), respectively. Accordingly, the signal transfer speed is high and a high speed coordinative operation is possible. The PMC (16) can receive directly the input/output signals of the other CNC (20) through the circuit (15, 25) and complicated control is possible.</p> |
