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基于MODBUS RTU的变频调速控制系统设计
消耗积分:10 |
格式:rar |
大小:117 |
2009-06-13
王利祥
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本文介绍了Modbus RTU 通信协议在变频调速系统中的应用，采用基于RS485 接口的
Modbus RTU 通信协议，实现PLC和各变频器之间的串行通讯，通过变频器对交流电进行变频调速。结果表明，该方法极大地减少线路连接的复杂性，提高了系统的抗干扰能力。
关键词: Modbus RTU 协议；RS-485；变频调速；
Abstract:This paper introduces the application of Modbus RTU Protocol in variable frequency speed regulation system.The serial communication between PLC and frequency-converters is realized based on the Modbus RTU protocol of the RS485 interface and makes variable-frequency speed regulation control for AC motor.The experiment results showed that this control mothod greatly reduced the complexity of the circuit conjunction and improved the performance of disturbance rejection of the system.
Key words：Modbus RTU Protocol；RS-485；variable frequency adjusting speed；
Modbus RTU 通信协议，实现PLC和各变频器之间的串行通讯，通过变频器对交流电进行变频调速。结果表明，该方法极大地减少线路连接的复杂性，提高了系统的抗干扰能力。
关键词: Modbus RTU 协议；RS-485；变频调速；
Abstract:This paper introduces the application of Modbus RTU Protocol in variable frequency speed regulation system.The serial communication between PLC and frequency-converters is realized based on the Modbus RTU protocol of the RS485 interface and makes variable-frequency speed regulation control for AC motor.The experiment results showed that this control mothod greatly reduced the complexity of the circuit conjunction and improved the performance of disturbance rejection of the system.
Key words：Modbus RTU Protocol；RS-485；variable frequency adjusting speed；
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