| 摘要 |
PROBLEM TO BE SOLVED: To simultaneously perform plural synchronous operation controls when plural pieces of one group (one representative device and the other devices that follow the device and operate) exist at the same time. SOLUTION: A position data bus in a position data control bus 20 that is a common bus to a CPU unit 4 and a positioning unit 7 is subjected to time division control so that position data of each device 11 can be written. And, devices 11 which follow one representative device 11 and operate can read position data of the one representative device 11 and even if plural groups exist, the respective devices 11 which follow and operate have only to read the position data of the one representative device 11 of their self-group, perform correction according to the position data and output a corrected speed command to a driving device 10.
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