Smart Energy Management for Display Manufacturing
Introduction
A leading panel display manufacturer producing TFT-LCDs, LCDs, and touch panels needed a reliable way to monitor the current consumption of HEPA inverters used in its cleanroom production environment. To ensure stable inverter operation while supporting energy management initiatives, the company required real-time visibility into inverter performance and power usage.
This case study demonstrates how ICP DAS USA’s Energy Management Solution enables remote, real-time monitoring of inverter current data, helping manufacturers improve energy efficiency, enhance operational visibility, and support preventive maintenance.
Simplified Energy Data Collection and Monitoring
To monitor energy consumption across the production line, the customer deployed the PM-3114-100 Single-Phase Smart Power Meter to collect AC current data from HEPA inverters. The data is transmitted to the PMC-5231 Power Meter Concentrator via the RS-485 interface using the Modbus RTU protocol. The concentrator then sends the information to the control center over Ethernet using Modbus TCP, enabling centralized monitoring, power consumption analysis, and efficient energy management.
The solution architecture is shown below:
Solution Overview
ICP DAS USA’s PM-3000 Series Smart Power Meters provide highly accurate energy monitoring (better than 0.5% accuracy at PF=1) for both low-voltage and medium/high-voltage applications. By delivering reliable, real-time energy consumption data, they help manufacturers monitor equipment performance, improve energy efficiency, and support preventive maintenance programs.
The PM-3114-100 Single-Phase Smart Power Meter supports current measurements from 0.05A to 60A and voltage inputs from 10 to 300 VAC, making it suitable for global installations. Built-in relay outputs enable direct integration with alarms, warning lights, and other notification devices, while Modbus RTU support simplifies system integration.
Centralized Energy Management with the PMC-5231
The PMC-5231 IIoT Power Meter Concentrator serves as the hub of the energy management solution, combining:
The concentrator can connect up to 24 ICP DAS USA Modbus power meters and up to 8 Modbus I/O modules through RS-485 or Ethernet. It gathers and records power data from connected equipment and easily shares that information with SCADA systems, IoT platforms, or analytics software for deeper energy insights.
User-Friendly Monitoring and Alerts
With its built-in web server, the PMC-5231 allows users to view power data, configure settings, and create monitoring dashboards directly through a standard web browser, with no programming required.
The device also supports edge computing and automated notifications. If abnormal inverter current levels are detected, the PMC-5231 can immediately send alerts via email or LINE, ensuring maintenance personnel can respond quickly, even when centralized monitoring software is unavailable.
Key Benefits
Completing the Energy Management Strategy with IoTstar
As manufacturers face increasing pressure to reduce energy consumption, lower carbon emissions, and meet sustainability goals, accurate energy data has become essential. Regulations such as the EU’s carbon reduction initiatives and Carbon Border Adjustment Mechanism (CBAM) are driving organizations to improve visibility into their energy usage and carbon footprint.
ICP DAS USA’s Energy Management Solution helps businesses collect, analyze, and manage energy consumption data across facilities. Smart power meters can monitor energy usage from critical assets such as HVAC systems, chillers, lighting, production machinery, and EV charging stations, providing the insights needed to identify efficiency opportunities.
Cloud-Based Monitoring and Analytics
The PMC-5231 Power Meter Concentrator automatically transfers energy data to the IoTstar IIoT Cloud Management Platform, ensuring continuous visibility into power consumption. Built-in data recovery mechanisms help maintain data integrity and minimize the risk of information loss.
With IoTstar, users can:
Together, the PM-3000 Series Smart Power Meters, PMC-5231 Concentrators, and IoTstar Platform provide a complete energy management solution that helps manufacturers improve operational efficiency, reduce energy costs, strengthen preventive maintenance programs, and support long-term sustainability goals.
Conclusion
As ESG and sustainability goals become increasingly important, manufacturers need better visibility into energy usage and equipment performance.
With ICP DAS USA’s Energy Management Solution, the customer can monitor HEPA inverter current in real time, reduce energy consumption and carbon emissions, and implement preventive maintenance to minimize downtime and maintenance costs.
Supporting multiple communication protocols and seamless integration with management platforms, ICP DAS USA’s solution helps manufacturers improve efficiency, strengthen sustainability efforts, and advance their ESG objectives.
