Remote Terminal Units (RTU) for Digitalizing Energy Supply Networks

29 Jan 2023

The WAGO RTU solutions use the modular WAGO I/O System, which has a long-standing record of success, as the platform. Thus, telecontrol protocols (IEC 61850, IEC 60870, DNP3, Modbus®) were added to the scalable-performance controllers. In combination with the option of IEC -61131-3 programming, this allows all tasks – both telecontrol communication tasks and station automation tasks – to be handled flexibly and, above all, easily.

International approvals guarantee continuous operation under the most challenging environmental conditions. The Linux® operating system ensures maximum flexibility along with long-term availability of the automation solution, taking into account the strictest security requirements for critical infrastructure applications (KRITIS).

The system’s flexible communication and programming properties, combined with a comprehensive portfolio of I/O interfaces and programming libraries, result in unparalleled openness for automating solutions across industries – particularly for electrical distribution networks, water resource management, oil and gas and infrastructure projects.

Versatile Communication Interfaces

• Compatible with all important telecontrol protocols: IEC 60870-5, DNP3, IEC 61850, Modbus®
• Several gateway functions possible (client/server)
• IoT (MQTT), OPC UA, fieldbus, industrial ETHERNET, etc.

Uncomplicated use

• High quality modular I/O modules enable individual node designs.
• Intuitive configuration tools and project-specific Web interfaces make commissioning easier and cut life-cycle costs.
• Freely programmable IEC 61131-3 control logic
• Linux MicroServices (docker) directly applicable

Approvals granted for substation automation

• Meets most stringent environmental conditions per IEC 60255
• Certified protocol conformity (GL_DNV, KEMA)
• Long product and service life span
• CPU performance scalable to complex tasks

Absolutely secure and reliable

• Meets highest security standards to guarantee greater system uptime and data integrity (ISO27000).
• Hardened firmware for “critical infrastructure” (auditable) + Remote firmware updates
• Onboard firewall and VPN functionality

Whether electrical power, gas, water or heat: Given the increasing decentralization of energy generation and integrated grids – sector coupling too – data transfer volumes and communication tasks grow steadily. As the telecontrol technology supplier, WAGO has just right solution – secure, economical and ready for the future.

Although the task is basically connecting remotely distanced devices, systems and substations to the SCADA system via telecontrol (RTU), each application case does bring its own unique challenges. WAGO Telecontrol Stations (RTU) adapt to these circumstances with corresponding solution applications and architectures – compact, mobile and compatible.