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S7-1200与欧姆龙智能仪表Modbus通信案例
Modbus 通信是一种应用广泛的通信协议 ,在变频器、智能仪表或是其他的一些智能设备上应用的一种通用通信协议,本文以S7-1200系列PLC作为Modbus主站,以欧姆龙E5EZ的智能温控仪表作为从站为例,使用SCL编程语言编写S7-1200实现对欧姆龙智能温控仪表的当前温度值 ...
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