Experimental Study of Instrumentation and Control Devices for Fluid Pressure ON/OFF with Programmable Logic Controller (PLC)

Abstract

Implement a fluid pressure instrumentation and control system based on a Programmable Logic Controller (PLC) by integrating pressure sensors, actuators, and programmable logic controllers. Developing a PLC-based fluid pressure control system, Analyzing the system's performance in controlling pressure and maximizing flow with precision, [3] Identifying factors that influence the accuracy and efficiency of fluid pressure control using PLC. This research was conducted at the Materials and Methodology Testing Laboratory, Department of Engineering, Manado State Polytechnic. The design method used involves designing and experimenting with control instrumentation equipment. This system will be tested gradually to ensure its accuracy in controlling fluid pressure. Programming will be done using CX-Programmer software to set the control logic on the Programmable Logic Controller (PLC), enabling the system to operate automatically and efficiently. The results show that by applying the Integral Implementation method, the PLC-based fluid pressure control system provides precise, fast, and reliable control by integrating pressure sensors, actuators, and structured programming logic. This system is capable of operating automatically and in real-time, including pressure protection features to prevent damage caused by excessive pressure. PLC has proven to be superior to conventional methods due to its high response speed, minimal human error, and flexibility in control. System performance is significantly influenced by sensor accuracy, process speed, actuator responsiveness, control logic design, as well as environmental conditions and routine maintenance.