使用协议宏实现PLC与变频器之间的通信  

The accomplishment of communication between PLC and frequency converter using macroscopic function of protocol

作　　者：唐中燕[1] 

机构地区：[1]华北电力大学,071003

出　　处：《机床电器》2009年第4期57-59,共3页Machine Tool Electric Apparatus

摘　　要：协议宏功能是欧姆龙PLC的一种串行通信方式,可以应用于PLC与各种具有RS232C或RS422/485串口设备的通信。本文简要介绍了协议宏通信的原理,给出了PLC与两台3G3M系列变频器间进行协议宏通信的方法与编程方式。Macroscopic function of protocol is a kind of serial communication mode of OMRON PLC. macroscopic function of protocol can be used in the communication between PLC and the equipments that have RS232C or RS422/485 serial port. Principles of macroscopic function of protocol communication were introduced briefly in this paper. Macroscopic function of protocol communication mode and programmer between a PLC and two frequency converters are given.

关 键 词：PLC 协议宏功能 串行通信 变频器 

分 类 号：TM571.61[电气工程—电器]