Method for controlling port by PLC in numerically-controlled machine tool system

Abstract

The invention discloses a method for controlling a port by a PLC in a numerically-controlled machine tool system, which comprises the following steps: (1) obtaining current port information comprising port address information from a timer by the PLC; (2) processing the port by a PLC command through the PLC according to the obtained port information; and (3) returning the obtained port informationto a drive R0; obtaining the information of the current port by the circular scanning of the timer, then carrying out the corresponding control processing by the PLC according to the obtained port information to control the output of the port and the detection of an input port effectively. The invention has simple and convenient processing procedure, stable and reliable working performance and extensive application range and is more economical.

Description

technical field [0001] The invention relates to the field of numerically controlled machine tool systems, in particular to a method for controlling a port by a PLC in a numerically controlled machine tool system in the technical field of port control of the numerically controlled machine tool system. Background technique [0002] Manufacturing is the basic industry of the national economy. The level of manufacturing is an important indicator of a country's industrial development. The level of CNC machine tools is related to the level of the country's manufacturing industry. [0003] In the existing technology, we will use the CNC system to carry out corresponding cutting or welding, etc. When using the machine tool for high-pressure water jet cutting machine operations, or other cutting and engraving, sometimes it is necessary to open the output of certain ports, such as water cutting In the water valve, high pressure, sand valve, etc., at the same time, it is necessary to c...

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Problems solved by technology

[0003] In the existing technology, we will use the CNC system to carry out corresponding cutting or welding, etc. When using the machine tool for high-pressure water jet cutting machine operations, or other cutting and engraving, sometimes it is necessary to open the output of certain ports, such as water cutting In the water valve, high pressure, sand valve, etc., at the same time, it is necessary to close the output of some ports at certain times, and at the same time, it is necessary to detect some inputs and perform corresponding processing on the detection results, such as some alarms; due to the same Cutting machine, but the input and output of the port required by different manufacturers are not the same. If the input or output of the port is different, it needs to be redeveloped, which will cost a lot of manpower and financial resources. This method is obviously uneconomical.

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