摘要
本文介绍了常规PLC与安全PLC的很多不同点,然后通过安全PLC的CPU、I/O模块举例说明了它们不同的具体内容。
The paper introduced basic differences between normal PLC and safety PLC, and took examples to explain different points on CPU, I/O modules detailly.
出处
《仪器仪表标准化与计量》
2007年第4期6-9,共4页
Instrument Standardization & Metrology
