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介绍了称重系统实时显示重量和多任务数据通信的可编程控制，以及PLC与上位机通信的实现方法。用该方法研制的程序已经用于宝钢炼钢厂合金称重系统，生产运行证明其达到了设计的要求。
Introduced the real-time display weighing system and multi-tasking data communication programmable control, as well as PLC and PC communication method. The procedure developed by this method has been applied to the alloy weighing system of Baosteel Steel Works, and the production operation proves that it meets the design requirements.