该系统由SIEMENS S7 - 200 PLC为核心的短路故障模拟控制器、上位PC机编程-控制平台和一次模拟控制设备三部分构成。
The system is composed of short-circuit simulation equipment based on SIEMENS S7-200 PLC, compiling-controlling flat on PC and high voltage simulation controlling equipment.
ioctl命令应该添加到设备驱动程序中，这样就可以从测试应用程序中控制对中断的模拟了。
A new ioctl command should be added to the device driver to control the interrupt simulation from the test application.
用该方法控制设备工作声音，达到了模拟的目的。
It attained the simulating goal controlling equipment's working voice with above method.
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