In modern industrial environments, secure and efficient data transmission across geographically distributed infrastructures is essential. This case study demonstrates how a multinational technology company improved its cross-border communication using ICP DAS’s UA Series IIoT communication server.
Introduction
The company, headquartered in Singapore, previously relied on a PC-based system with an OPC DA server to monitor PLC data from its Taiwan data center. Since OPC DA does not support encryption, the system was exposed to security risks. To address this, a VPN solution was implemented, which increased overall system complexity and costs.
Solution Architecture
The solution is based on the UA-5231 IIoT communication server, enabling secure communication between operational and enterprise systems.
- PLC data via Modbus TCP
- Encrypted using OPC UA protocol
- Transferred to SCADA system at headquarters
Key Advantages
- Stable and energy-efficient operation
- No VPN required
- Easy transition from OPC DA
Advanced Features
- OPC UA, MQTT, SNMP, RESTful API support
- Data logging to SD card or SQL database
- Data recovery during network failure
- Secure HTTPS and SSL/TLS communication
- Cloud integration and MQTT messaging
- IFTTT alerts and automation
Conclusion
OPC UA enables secure, scalable, and efficient communication between OT and IT systems. By eliminating VPN dependency, organizations reduce costs while improving cybersecurity and performance.
Related Products
UA-5231 – IIoT Communication Server
UA-2241M – IIoT Communication Server
UA-2641M – IIoT Communication Server
MIC-7500-S9A1E – OPC UA I/O Module
