DTUEconomist⁴¹³⁰³⁺² 基本例句 计数据传输装置,数据转换装置 In order to know all the equipments' real-time running and alarm information in distance, we can realize PLC's remote control by adding GPRS intelligent wireless data transfer unit DTU. 为了能远程实时了解设备运行与报警信息，可以让 PLC加装 GPRS智能无线数传设备 DTU，实现 PLC的远程监控。1718china.org.cn