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发明授权
CN105807722B 具备内部寄存器自复位功能的数值控制系统 有权

具备内部寄存器自复位功能的数值控制系统
摘要：
本发明提供一种具备基于监视串行通信信号的内部寄存器自复位功能的数值控制系统，在由数值控制装置和多个I/O单元构成的数值控制系统中，在该I/O单元内部设置有串行通信信号监视电路，监视串行通信信号(数据和空闲信号)。当检测到预定时间以上的串行通信信号为高电平或低电平的状态时，被视为串行通信信号断线，生成复位脉冲信号而使I/O单元的内部寄存器复位。因此，在使数值控制装置的电源断开/接通时，不需要使I/O单元的电源断开/接通。
摘要（英）：

In a numerical control system including a numerical controller and a plurality of I/O units, a serial communication signal monitoring circuit is included inside the I/O unit to monitor a serial communication signal (data and an idle signal). When a state is detected in which a serial communication signal is high or low for a predetermined time or longer, the numerical control system acknowledges the state as disconnection of the serial communication signal, and generates a reset pulse signal to reset an internal register of the I/O unit. With this configuration, when the power supply of the numerical controller is turned off/on, it is unnecessary to turn off/on the power supply of the I/O unit.

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