DEVELOPMENT OF SUPERVISORY CONTROL FOR LUBRICANT BLENDING PROCESS USING PLC

This project is focused on the development of PLC supervisory control system to
control and remotely monitor a batch blending process in lubricant blending plant.
Object Linking and Embedding for Process Control (OPC) is used as a standard
interface between PLC and Lab VIEW's remote monitoring tool. The interface used
Microsoft's Component Object Model (COM) to interact and permit a protocol for
real-time information exchange between LabVIEW and PLC via a RS-232 serial
cable. The aim of this project is to create a reliable remote monitoring system with
user-friendly interface. The supervisory control system can improve plant's operation
efficiency by providing the overvie~ process and control capability from the monitor
inside control room. It also helps to reduce risk inside plant as operator can have
their job done remotely inside cOntrol room. Furthermore, this project offers an
alternative and cheaper supervisory solution for batch processes compared to
distributed control system (DCS).