The application of PLC and touch screen in the analysis instrument
Ning Chen · Ship Science and Technology · 2008
The automatic sampling controlled by the combination of PLC and touch screen is introduced.The composition of system and the design of software are illustrated.The design of the on-line analysis instrument of COD are introduced.The instrument chooses the PLC of emerson's EC10 series and the Touch Screen of Eview.Realizes some functions,such as automatic data collection,manual control,alarm of malfunction,recording and transmission of historical data,it also has convenient interface of human-computer interaction.