二十一世紀是個競爭的時代，工廠自動化已是時勢所趨。本論文提出以傳統可程式控制器(PLC)架構成網路系統，並利用Visual Basic 6.0 展人機界面應用程式，建構生產線製程及電力監控系統，做為日後工廠自動化監控技術之參考。生產線製程監控系統功能包括多機台生產製程生產量監視、生產流程監控、日資料庫查詢及月資料庫查詢；電力監控系統功能包括電力參數量測、電力參數即時顯示及電力需量控制。本系統完成了PLC 自動讀表通訊程式研發、PLC 網路架構、PLC 與電腦連線、人機界面應用程式開發、資料庫建立及電力需量控制。In this paper, a network system constructed by traditional programmable logical controllers (PLC) is applied to automatic metering and to establish a power monitoring and control system. The Man-Machine Interface (MMI) of the power monitoring and control system is developed using Visual Basic 6.0 software. The function of the proposed system includes power parameters recording, database setup, power demand control, cycling on/off load control, operating status monitoring and real-time/history trend graphic display. The communication program of PLC for automatic metering, PLC network system, connection between PLC and PC, MMI development, database setup and power demand control for establishing this system are all accomplished.
