What are the common protocols used in SCADA systems?

Common Protocols Used in SCADA Systems

In SCADA systems, there are several common protocols that are used for communication and data exchange. Some of the most widely used protocols include:

• Modbus: Modbus is a popular serial communication protocol used for connecting industrial electronic devices.
• DNP3 (Distributed Network Protocol): DNP3 is commonly used in water and electricity distribution systems for reliable communication.
• IEC 60870: This standard is used in Europe for communication between remote terminal units and control centers.
• OPC (OLE for Process Control): OPC is a widely adopted protocol for connecting different automation devices and systems.
• Profibus: Profibus is used for real-time communication between field devices and control systems in industrial automation.

Understanding these protocols is essential for professionals working with SCADA systems to ensure efficient and secure communication within the system.