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《Mechanical & Electrical Engineering Technology》 2010-01
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DDE Multi-Channel Signal Alarm System Based on VBA

AN Jing(Department of Electrial Engineering,Guangdong Songshan Polytechnic College,Shaoguan 512126,China)  
A Gas Limited Company has developed DDE multi-channel signal alarm system,which leads to some improvements over the old system.The new alarm system can find the error in time,so precaution can be taken in advance.Therefore,the equipment can beprotected as well as possible to avoid bigger loss.In the DDE multi-channel signal alarm system,VB reads engineering control system FIX7.0 data through dynamic data exchange,and then VB process is executed.There is real-time control in EXCEL.If the Slope contrast is judged abnormally,DDE will send the data to engineering control system FIX7.0,where alarm will appear on the monitor screen.
【CateGory Index】: TP277
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