Motor controller for application in a motor controller network

Details Motor controller for application in a motor controller network Motor controller for application in a motor controller network

1996-08-08

1998-04-14

Ro, Bentsu

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

Parallel connected motors

318103, 3889075, H02P 154

Patent

active

057396485

ABSTRACT:
A motor controller that incorporates all of the advantages of RS-485, yet allows the user to interface with the controller through RS-232 without a separate RS-232 to RS-485 converter. The controller includes a port for receiving RS-232 compatible signals. The RS-232 signals are converted to RS-485 compatible signals which are, in turn, converted into logic level signals suitable for the motor controller. The RS-485 signals may be shared among a number of controllers, and an RS-485 port is provided for such a purpose. RS-485 ports can be interconnected via a common bus so that a number of motors can be separately controlled from a master controller (usually a personal computer) that is connected to any available RS-232 port.

REFERENCES:
patent: 4289997 (1981-09-01), Jung et al.
patent: 4774441 (1988-09-01), Toyomasu et al.
patent: 5179421 (1993-01-01), Parker et al.
patent: 5534758 (1996-07-01), Yamamoto et al.

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