ABSTRACT

CHRISTOFORUS YOHANNES. PLC- (Programmable Logic Controller)-Based Control System and Instrumentation Laboratory Design at the Department of Electrical Engineering Hasanuddin University Makassar  (supervised by Rhiza S. Sadjad and Andani Ahmad).

Programmable Logic Controller (PLC) has been widely used as controllers in the industrial world. It is only natural that the graduates of the Electrical Engineering study program, especially those who take the Electrical Power Engineering and Control Engineering as their specialization, are required to equip themselves with adequate knowledge on PLC. The Control System and Instrumentation Laboratory is the most perfect place where the students could develop their competency on this subject.

The Control System and Instrumentation Laboratory, Department of Electrical Engineering, Hasanuddin Makassar has one set of PLC 5 installed for students who take laboratory courses on PLC. To optimize the use of this equipment, the PLC 5’s I/O Ports and control terminals are extended to the laboratory table. This extension will also enable a more comfortable access to the equipment.

This research is primarily emphasized on the investigation of the feasibility of the extension by measuring the effect of the extension on the PLC’s accuracy in collecting the integer data input and in generating output signals.  The investigation has proven that the extension does not make any significant deviation of the measurement. The voltage drop between the port at the panel and the extension port on the laboratory table (the distance is in average ….. meter) is only 3 mV (….. %) and the cable resistance is only 0.3375 Ohm/meter.