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The paper discusses the OPC technology and it brings functions and benefits in monitoring system of the small AS/RS. As an example of the monitoring system of an airport catering company, the paper analyzes the way of data access in this monitoring system according to the typical data access method of OPC. The monitoring system adopts Siemens S7-300 PLC Ethernet communication module and OPC communication...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.