Omron Multi-PLC Control System

System Overview

This project developed a multi-PLC linked control system managing 14 oven units and one main control panel.
All units are connected through Omron PLCs (Sysmac Series) using tag-based communication, enabling synchronized operation and centralized monitoring.

PLC Configuration

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Each oven is controlled by an individual PLC, while a master PLC coordinates the entire production sequence.
The system exchanges operational data, alarms, and mode states over the internal network, ensuring seamless synchronization among all units.

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HMI Screens

The HMI interface (Omron NB series) provides an intuitive overview of all oven statuses, including operation mode, door control, and workpiece information.
Operators can monitor up to 14 ovens simultaneously, with real-time cycle and production data displayed for quick diagnostics.

hmi omron multioven v1
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Summary / Conclusion

By integrating 15 PLCs into a single coordinated system, this project significantly improved operational efficiency, process stability, and maintainability.
The architecture supports future expansion, offering a scalable platform for high-volume industrial automation.

**Tools Used**
– PLC&MHI: Omron Sysmac Studio 　 　
– Network: EtherNet/IP
– Language: Ladder / ST

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