OPC UA (OPC Unified Architecture) is the industry’s leading communication standard. It bridges OT and IT silos to enable secure, seamless data exchange between shop-floor devices and business systems. As the backbone of modern industrial automation, OPC UA guarantees reliable data integration and robust transmission security.

Weintek proudly announces that its cMT and cMT X Series HMIs are OPC UA certified!

Certified models include:

• cMT X Advanced HMIs
• cMT X Headless HMIs
• cMT Series HMIs
• cMT Gateways
  
  

See certification details on the official OPC Foundation website.

HMI in the OPC UA Framework

Acting as the OPC UA Server at the field end, the HMI transmits data from on-site PLC and I/O devices to external systems in a tree-structured format. Meanwhile, MES, SCADA, and ERP systems act as OPC UA Clients. They connect to the HMI via the standard protocol to read production data or send command updates.

Why OPC UA Certification Matters?

HMIs aggregate data from diverse field devices and systems, so stability, compatibility and security are essential. Official OPC UA certification guarantees:

1. Easier Device Integration

OPC UA-certified cMT/cMT X Series HMIs and gateways integrate cross-brand PLC, sensor, and device data into a unified platform. This reduces setup complexity, lowers development costs and accelerates digital transformation.

2. Seamless IT/OT Data Flow

Cross-platform support (Windows, Linux) and cloud compatibility (AWS, Azure) stream real-time on-site data into MES, SCADA and ERP systems, bridging operational technology with information technology for a true smart factory.

3. Robust Data Security

OPC UA possesses robust security mechanisms, including Certificate Authority (CA) and asymmetric encryption. Moreover, equipment certified through the OPC Foundation's stringent testing minimizes cyber-attack risks, prevents tampering and confirms compliance with strict interoperability standards.

How to Activate OPC UA Server?

The tutorial demonstrates a Weintek cMT3072XH HMI with a PLC controller on a production line. It shows how easily you can set up the OPC UA Server using the EasyBuilder Pro software.

※OPC UA logos are trademarks owned by OPC Foundation, registered in the US and other countries, and used under license.