Control method and control device of servo driver

A servo driver and control method technology, applied in electrical program control, program control in sequence/logic controllers, etc., can solve problems such as inconsistency and inability to ensure the integrity of synchronous data, and achieve the effect of ensuring integrity

Active Publication Date: 2016-02-03
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, since the data update cycle of the Ethernet protocol stack is inconsistent with the data update cycle of the DSP, it is impossible to guarantee the integrity of the synchronization data in practical applications.

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  • Control method and control device of servo driver
  • Control method and control device of servo driver
  • Control method and control device of servo driver

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Embodiment Construction

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0056] The control method of the servo driver of the present application is applied in an FPGA, where one end of the FPGA is a DSP end and the other end is an Ethernet protocol stack end, and a DPRAM is arranged in the FPGA. Therefore, the FPGA in this application can implement data transmission between the DSP end and the Ethernet protocol stack end based on DPRAM.

[0057] Since this application is consistent with the execution process of the DSP end or the Ethernet protocol stack...

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Abstract

The application provides a control method and a control device of a servo driver. The method comprises that when a first terminal executes a write data operation aiming at an input register, whether the first terminal completes the write operation aiming at the input register is continuously determined; if the first terminal completes the write operation aiming at the input register, data in the input register is correspondingly transferred and stored into an intermediate register; and when the first terminal completes the write operation aiming at the input register, a second terminal is allowed to execute a read operation aiming at an output register. During a data updating course, the control method and the control device of the servo driver provided by the application carry out the read operation at first and then carry out the write operation, or carry out the write operation at first and then carry out the read operation rather than alternatively carry out the read and write operations. Hence, the problem about data non-synchronization of the two terminals caused by that one terminal executes an updating operation and the other terminal also executes the data updating operation simultaneously can be avoided.

Description

technical field [0001] The present application relates to the technical field of motor control, in particular to a control method and device for a servo driver. Background technique [0002] With the development of Ethernet technology in recent years, the Ethernet bus communication protocol has been applied to servo drives. see figure 1 For the current servo driver, the servo driver in the figure adopts the hardware architecture of FPGA+DSP. Among them, DSP is DigitalSignalProcessor, that is, digital signal processor, which is used to run the driver control program. FPGA is Field-ProgrammableGateArray, that is, field programmable gate array; it is used to implement Ethernet communication protocol; and, FPGA includes DPRAM and Ethernet protocol stack; DPRAM is Double-portRAM, which means dual-port RAM. [0003] In order to realize the specific function of the servo drive, data exchange is required between the Ethernet protocol stack and the DSP. The data interaction proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/04
CPCG05B19/04
Inventor 陈英华韩东桂雄斌陈友樟
Owner GREE ELECTRIC APPLIANCES INC
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