Automation of sugar boiling process in batch vacuum pans using ABB-Freelance PLC (AC 800F) and conductor NT SCADA

Abstract

In this paper, the design and implementation of the sugar boiling process in batch vacuum pans using the ABB-Freelance PLC and the conductor NT is proposed. With a well-designed automated system, the need for operators' supervision is greatly minimised and hence permits the labour cost to be reduced and optimising the repeatability and efficiency of the process done by the system. Thus, the operator may readily and efficiently take real time action on the flow of the process permitting the latter to have an upper hand on the system as the latter may decide his own desirable set points at critical intervals during the sugar boiling process. Using function block diagrams (FBD) and sequential function chart (SFC) as the main programming languages for the PLC and with the appropriate interfacing of the designed system on the SCADA as per the conductor NT manual, a complete centralised control of the automated system for batch vacuum pans is proposed.