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在中央空调系统的节能改造监控项目中,需要监视和分析整个系统的能耗情况,要对中央空调系统等大型用电设备进行能源合同管理,就必须把电量测量仪中测得的电压、电流、功率及功率因数等数据通过串口通信传送到控制器PLC中,PLC再把能耗数据送至计算机端的监控软件进行分析与监控。结合自己主持实施的工程项目介绍PLC与智能电量测量仪串口通信技术在能源合同管理系统中
In the central air-conditioning system of energy-saving monitoring project, the need to monitor and analyze the energy consumption of the entire system, to central air-conditioning systems and other large-scale electrical equipment for energy contract management, it must be measured in the power meter voltage, current , Power and power factor and other data through the serial communication sent to the controller PLC, PLC then the energy consumption data sent to the computer-side monitoring software for analysis and monitoring. Combined with their own implementation of the project introduced PLC and smart electricity meter serial communication technology in the energy contract management system