Modular reconfigurable motion controller architecture based on SERCOS

Abstract

The invention provides a modular reconfigurable motion controller architecture based on an SERCOS. The architecture comprises a PLC, a motion controller and an SERCOS communication unit. The motion controller and the SERCOS communication unit are electrically connected with the PLC. The architecture also comprises SERCOS master stations and more than one SERCOS slave station. The SERCOS master stations and the more than one SERCOS slave station are in closed loop communication connection through a fiber or copper twisted pair. Each SERCOS slave station is provided with a servo driver for driving a servo motor. The motion controller performs instruction transmission and information feedback with the servo drivers by adopting SERCOS message communication. The modular reconfigurable motion controller architecture based on an SERCOS bus protocol embodied by the invention has full reconfigurable characteristics and high flexibility, and is particularly suitable for servo synchronous control at different positions such as distributed numerical control, combined type numerical control, high performance printing equipment and the like.

Description

technical field [0001] The invention relates to a motion controller architecture in an all-software open numerical control, in particular to a SERCOS-based modular reconfigurable motion controller architecture. Background technique [0002] Open NC is a major progress in NC technology at present. It breaks the situation that the NC system in the world was mainly monopolized by a few large multinational companies in the past. It is a major opportunity for a country like my country, which is originally relatively backward in NC technology. Its main feature is to replace the expensive numerical control device (abbreviated as NC) with cheap general-purpose PC software and hardware, and replace many functions that were originally implemented by hardware with software, thereby breaking the hardware bottleneck that has long restricted the development of my country's numerical control technology. , and has many advantages that traditional numerical control does not have. The realiza...

AI Technical Summary

Problems solved by technology

However, its scalability is limited by the size of FPGA hardware modules, hardware instruction interface circuits (such as high-speed optocouplers, differential I / O chips, etc.) and the number of signal lines.

[0011] In summary, the reconfigurability and flexibility of the above existing technologies are subject to different restrictions

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