摘要
仅用ＰＬＣ一个输入点，配以简单的硬件电路和ＰＬＣ程序，实现对８路（或１６路）信号的自动巡检。巡检周期可在８ｓ～８ｍｓ范围内任意调节。
A multipath signal auto test system with PLC is presented in this paper.With it the 8 path or 16 path signal can be tested and registered automaticlly.The circular time of the test can be adjusted programlly from 8ms～8s.The system and the program have been run and can be used in practice.
出处
《电气传动自动化》
1997年第3期49-51,共3页
Electric Drive Automation
