Demand Side Management (DSM), which regulates consumer energy usage to lower peak demand and boost system reliability, is a crucial component of contemporary power systems. This study suggests a novel method for programming. The proposed control device for DSM implementation employs programmable logic controllers (PLCs). The proposed system includes a central control unit that communicates with multiple smart meters installed in households and commercial buildings via PLCs. The control unit collects real-time data on energy consumption and uses it to manage the demand in a coordinated and efficient manner. The design and implementation of the proposed DSM system using PLCs. Also, this study discusses about the hardware and software components used in the proposed system, including the PLCs, communication protocol, and user interface. Further, this study describes the control algorithms that are used to manage the demand and its implementation using ladder logic programming. Finally, this study shows the findings from simulations and experimental tests performed to assess the efficiency and dependability of the suggested DSM system. Customers can also monitor their energy use with the system’s user interface, and they can change their usage habits in reaction to demand signals. The proposed system provides accurate and timely control of energy consumption and allows consumers to adjust their energy usage in response to changing demand signals. The system is also easy to implement and can be easily scaled to meet the needs of large power distribution networks. The suggested DSM, in general PLCs have the potential to increase the effectiveness and dependability of any system while benefiting both utilities and consumers.