Numerical control system logic controller on basis of system on programmable chip and implementing method thereof

Abstract

The invention relates to an implementing method of a numerical control system programmable logic controller (PLC) on the basis of a system on a programmable chip, which comprises the following steps of: constructing an external circuit connected with an FPGA (Field Programmable Gate Array); constructing the system on the programmable chip on the FPGA, wherein the system on the programmable chip is used for operating the numerical control system PLC; clipping, transplanting and compiling a real-time operation system in the system on the programmable chip; and operating the PLC on the real-time operation system to realize control on peripherals. In the invention, due to the adoption of the design of the system on the programmable chip on the basis of the FPGA, the integration level and the reliability of a programmable logic device are improved; and due to the adoption of a technology on the basis of the SOPC (System On Programmable Chip), a soft core processor is internally realized for executing a PLC task, the processing speed of the PLC is improved, and the cost is reduced when the flexibility is ensured.

Description

technical field [0001] The invention relates to a logic control technology of a computer numerical control system, in particular to a logic controller of a numerical control system based on an on-chip programmable system and a realization method thereof. Background technique [0002] The logic controller (PLC) module is an indispensable and important part of the open CNC system, and it completes the control of the CNC machine tool through coordination and cooperation with the CNC system. Among them, the CNC system mainly completes the control work such as information display, management scheduling and trajectory control; the PLC mainly completes the operation control of systems such as spindles, tools, chucks, hydraulic pressure, cooling, and lubrication. The two complement each other, coordinate the digital information and switching information of the CNC machine tool well, and realize the normal operation and work of the system. [0003] In recent years, with the increasi...

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Problems solved by technology

[0005] In the prior art, the logic controller (PLC) of the numerical control system runs on the same processor in the form of software together with functions such as the motion control of the numerical control system, and there are shortcomings such as occupying processor resources and affecting the calculation speed of motion control. The technical problem is to provide a programmable logic controller of a numerical control system based on an on-chip programmable system that can independently process data and perform logic tasks without occupying the processor resources of the numerical control system and its implementation method

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