What is OPC UA
Introducing OPC Classic
Before the OPC Classic
Communicating and sharing data between devices with different platforms is very difficult. It requires a unique program creation.
After the OPC Classic waw launched
Interconnection is possible with a unified standard without the need to create a proprietary program. Enables concentration on what one wishes to do.
OPC (OPC Classic) is a process communication standard developed by Honeywell, Siemens, and Microsoft in 1996 to transmit and receive data between different manufacturers and devices. It is based on Microsoft's COM/DCOM technology and is designed to work in a Windows system. The specification was originally conceived for interoperability in processor control in plants and factories.
Emergence of OPC UA
Growing market demand (2000s~)
- Advanced application functionality
- Overall optimization
- Multiplexing capabilities
- Usage scenarios expansion (from the automation field to other industry categories)
- Increased security requirements for constantly advancing threats
- Dilemma of only working in Windows environment
Demand for OPC UA
Because of two critical incident occurrences and the IoT shift.In 2010, a cyber attack by "Stuxnet" occurred on Iran's nuclear facilities.
Overview: Targeting PLCs manufactured by Siemens AG
Damage: 8,400 centrifuges were hijacked, rendering them all inoperable
Overview: Malware caused a major power outage.
Damage: Tens of thousands of residents experienced a blackout lasting about an hour and 15 minutes in the northern part of Kiev, the capital of Ukraine.