WORKSHOP SISTEM MONITORING STABILITAS TEGANGAN DAN ARUS LISTRIK AC PADA INFRASTRUKTUR SERVER BERBASIS INTERNET OF THINGS MENGGUNAKAN PROTOKOL MODBUS

Abstract

The reliability of data center infrastructure inherently depends on the stability of its electrical power supply. The primary issue faced by the partner, a tech and internet company in Mataram City, was the reliance on manual electrical monitoring methods that lacked responsiveness to power anomalies outside operational hours, posing a severe risk of enterprise hardware damage and costly downtime. This community service activity aimed to implement an Internet of Things (IoT)-based AC power stability monitoring system while concurrently enhancing the technical capacity of the partner's IT staff. The execution methods comprised field observation, technology diffusion integrating Thera TEM-25 industrial sensors with a USR-DR302 Modbus Gateway into a PRTG Network Monitor dashboard hands-on technical training, and collaborative Standard Operating Procedure (SOP) development. The results demonstrated an exceptionally high operational reliability, with a system uptime of 99.8268% and 100% data coverage at 60-second sampling intervals. The system successfully and precisely documented short-term voltage sag anomalies as low as an extreme 195.1 V AC. Beyond technical deployment, a tangible transfer of technology was achieved, empowering the partner's IT staff to independently interpret anomaly graphs and execute preventive measures. Furthermore, isolating the system architecture within a local intranet ensured optimal cyber security since critical data remains unexposed to the public internet. This digital transformation has successfully shifted the partner's maintenance paradigm from a conventional-reactive approach to a proactive, Condition-Based Maintenance strategy.