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Servo-amplifier for a multiaxis driving control system

  • US 6,535,938 B1
  • Filed: 11/09/1999
  • Issued: 03/18/2003
  • Est. Priority Date: 07/02/1999
  • Status: Expired due to Fees
First Claim
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1. A servo-amplifier for a multiaxis driving control system that drives and controls an axis by transmitting and receiving to and from a RS232C communication medium in charge of communications and other servo-amplifiers, and communication data including an axis number indicating a communication destination, the servo-amplifier comprising:

  • a central processing unit;

    a RS232C communication interface circuit;

    a RS422 (RS485) communication interface circuit; and

    a switch that selectively connects a transmission side of the RS232C communication interface circuit to one of a reception side of the RS422 (RS485) communication interface circuit and the central processing unit, wherein the central processing unit;

    fetches communication data received through the RS232C communication interface circuit, converts the received communication data into communication data for RS422 (RS485) and transmits the converted communication data to another servo-amplifier through the RS422 (RS485) communication interface circuit, controls the switch to connect the transmission side of the RS232C communication interface circuit with the central processing unit and transmits the communication data to the RS232C communication medium, when the axis number included in the communication data received through the RS232C communication interface circuit specifies a station the servo-amplifier belongs to, and controls the switch to connect the transmission side of the RS232C communication interface circuit with the reception side of the RS422 (RS485) communication interface circuit and transmits communication data received from another servo-amplifier to the RS232C communication medium, when the axis number included in the communication data received through the RS232C communication interface circuit specifies a destination other than the station.

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