PLC控制系统中外围电路的现场维护经验

Maintenance Experiences of Peripheral Circuits of PLC Control System

从电源、接地、抗干扰处理、输出模块的选用、I/O口的保护、外部电路安全设计6个方面入手,探讨了PLC控制系统在外围电路设计以及现场维护中应注意的事项。

The notices of design of peripheral circuits of PLC control system and maintenance such as power supply, grounding, anti-interference, selective of output module, protection of I/O port, and safety design of peripheral circuits are discussed.