Abstract

Wastewater treatment plants are essential to protect the environment and reduce the negative consequences of polluted water. To produce pure water suitable for human consumption, these treatments go through several precise steps in all their chemical and electrical stages. Chemical compounds and fertilizers can also be extracted to reap essential benefits, such as harnessing them to generate electrical energy and other benefits. To prevent any failure that would disrupt processing and endanger human consumption, it requires processors and monitoring systems as well as programmable logic controllers with high accuracy, robustness, and reaction speed for decision-making. The PLC device, which works with the supervisory control system and data acquisition system (SCADA) to collect information and make accurate choices, is the most important of these devices. Industrial applications and factory automation have evolved significantly as a result of these systems. For these activities to be accurate and correct, these sophisticated processors must be monitored by sensor readers. In this study, programmable logic controllers (PLC) will be used based on reliable communication networks and fast transmission and reception speeds, including various Modbus between the controllers, supervisory control systems, and central data acquisition. Through this design, the processing units can be automated. A communications system based on obtaining and responding to data at a high rate of speed. In addition, the transmission and reception of signals ensure precise synchronization in the event of failure of any component of the communication system, as well as precise error detection protection. The system operates in real-time, which explains why the system achieves acquisition and processing in a short time of approximately 10 milliseconds or the total time for acquisition and processing of all system parameters reaches 140 milliseconds, which indicates the achievement of a highly reliable and accurate communications network based on communications protocols, where the PLC sends its data over long distances and according to the cables used, whether optical fibers or other, to the main center of the SCADA system for processing data according to the proposed scenario.