Thytronic's iRTUe are remote I/O expansion units utilizing IEC 61850 GOOSE communication to enhance and distribute the acquisition and command functionalities of electrical networks. These Remote Terminal Units (RTU) offer flexible I/O configurations, adapting to various application requirements and making iRTUe an ideal solution for updating and configuring electrical communication infrastructures.

In modern substation automation, iRTUe's advanced I/O modules facilitate critical services like interlocking and load shedding. Such performance, achieved through cutting-edge technologies, surpasses the limitations of old protocols and serial communications, with iRTUe ensuring IEC 61850 GOOSE transmissions in less than 3 milliseconds.

Thanks to dual Ethernet (RJ45, ST, SC) or serial (EXP422) connections and synchronization with IEEE 1588 (PTP), our RTUs ensure time precision and interoperability, enabling smooth communication with other network equipment such as RTUs, gateways, additional iRTUe modules, and third-party IEDs, thus optimizing operation on the substations process bus.

Features of the Remote Terminal Unit (RTU) iRTUe

Our I/O expansion units are characterized by advanced IEC 61850 GOOSE communication, enabling highly efficient publisher/subscriber data exchange. This technology guarantees high-speed data processing time, achieving 1A type performances of class P2/3, essential for critical applications where every millisecond counts. Our units' configuration is particularly flexible, offering two I/O cards per unit that support both digital and analogue inputs, adapting perfectly to the specific needs of each facility.

These devices are also equipped with protected technologies to support advanced automation functionalities like load shedding and interlocking, ensuring safe and reliable operations. Moreover, To ensure optimal connection, the units can be connected via an EXP422 serial port or dual Ethernet ports, either copper orfiber, facilitating communication with other iRTUs, iGWs, or any other third-party master unit. Another fundamental aspect is the time synchronization capability through PTP/IEEE1588 or NTP.

Furthermore, the adoption of GGIO data models or customized SCL files allows unprecedented customization, adapting to various operational scenarios. Lastly, power quality measurements are precisely managed by the specialized iRTUe-Q unit, ensuring the network operates efficiently.

Thytronic's SCADA Remote Terminal Units (RTUs) are often used as station controllers for data acquisition in substations, which require additional devices for gateway functionality and advanced features such as load shedding or microsecond timestamping. Our modular RTUs are powerful controllers with integrated Ethernet switches, cutting-edge functions, and internal I/O, allowing for complete management with a single compact device.

These RTUs can map serial servers into logical IEC 61850 nodes, gather and process data from both old and new IEDs, communicate directly with the control center via any standard protocol (e.g., IEC 60970-5-104, DNP3), and handle all common protocol conversions: from Modbus to IEC 61850, from IEC 101 to IEC 104, from Modbus RTU to Modbus TCP, from Modbus to Ethernet IP (from serial to Ethernet in general), from IEC 103 to DNP3, and manyothers.

A network architecture based on Thytronic RTUs is open and scalable, enabling easy integration of future generations of devices (IEDs, sensors, routers, etc.) and adaptation to any current and future needs, such as changes in network topology or communication media

Features of the iRTU Remote Terminal Unit

Thytronic RTUs are an ideal solution for every environment and power distribution system, thanks to their security, adaptability, and modularity. These devices integrate advanced features, including load shedding to manage network overload, microsecond timestamping for precise synchronization, PRP redundancy to ensure operational continuity, and PLC automation compliant with IEC 61131-3 standard, thus optimizing process control.

To ensure effective and uninterrupted communication with all devices and control centres connected to the electrical network, they support a wide range of protocols, including DNP3.0, IEC 61850, and IEC 60870-5. The integration of an Ethernet switch with two 10/100 BaseTx ports and two FX100 fiber optic ports, along with support for RSTP/PRP/HSR redundancy, further strengthens network resilience. Additionally, the availability of up to four Ethernet ports, four serial ports, and optional internal 4G, 3G, and GPRS modems expands connection possibilities, making Thytronic RTUs powerful and versatile tools for advanced electrical substation automation.

DaiTinEnergy Remote Terminal Unit Systems Compliant with Terna Specification

The bay control unit (BCU) performs control in accordance with control commands from network to control equipment and monitoring the bay power apparatus .electrical substation consists of two parts, main circuits and auxiliary circuits ,that the BCU integrates all of the auxiliary functions in a single unit.

The bay control unit (BCU) performs control in accordance with control commands, from network to control equipment, and monitoring the bay power apparatus .electrical substation consists of two parts, main circuits and auxiliary circuits. The BCU integrates all of the auxiliary functions in a single unit.

The collection and management of data from meters, protection relays, and other Intelligent Electronic Devices (IEDs) in energy infrastructures can be optimized through the use of the DaiTinEnergy iGW gateway. This advanced device supports a wide range of communication protocols, including IEC 60870-5, IEC 61850 (MMS/GOOSE), DNP3, DLMS, Modbus, and Procome, ensuring microsecond timing accuracy, thanks to the use of synchronization systems such as NTP or PTP.
The DaiTinEnergy gateway is not limited to merely collect data, but it is able to process and forward the collected information to one or more control centers or SCADA master stations, using upstream protocols such as IEC 104, IEC 101, TASE2.0/ICCP (IEC 60870-6), IEC 61850-90-2, DNP3, and Modbus RTU/TCP.
The network architecture incorporating the DaiTinEnergy iGW gateway stands out for being open, efficient, and scalable: it can easily accommodate future generations of devices (such as IEDs, sensors, and routers) and dynamically adapt to any changes in the electric distribution network.
Gateway iGW: highlights 

• Complete real-time monitoring of substation equipment

• Full integration of IEC 61850 GOOSE and MMS

• Internal PLC based on IEC 61131-3

• Complete range of protocols

• Generation of alarms and events

• High-precision time synchronization via PTP and NTP, plus internal RTC

• PRP & HSR redBox (redundancy box)

• Configuration and live data access remotely and via web

• Locally expandable data memory with integrated SD card

• Collection, management, conversion, and transfer of DLMS meter data

• Collection of all types of electrical data from various meters simultaneously

The iGWlite gateway from Thytronic offers protocol conversion capabilities in a small, smart, and easy-to-use device. Specifically designed for electrical installations, this communication gateway is secure, compact, and modular.

SCADA systems (Supervisory Control and Data Acquisition) are essential for the automation and local/remote control of power generation plants and substations. DaiTinEnergy's iControl SCADA software can be tailored to any application need, from small substations and power plants to complete medium voltage networks, always operating within the same environment.DaiTinEnergy's SCADA automation systems provide an intelligent HMI interface for real-time monitoring and control, combined with advanced data acquisition, regardless of the communication protocol, RTU to connect to, or the architecture (standalone, client/server, or redundant) in use.

Features of iControl SCADA

European guidelines for the electric power transmission system underscore the importance of monitoring distributed generation, especially that from renewable sources. ARERA assigns DSOs the task of collecting and transmitting data related to production plants to TSOs. The CEI, through annexes O and T, introduces the Central Plant Controller (CCI), a crucial device for the interaction between DSOs and the network, facilitating the monitoring of production plants at the Point of Delivery and contributing to network balancing.

To meet the needs emerging from the CEI-016 regulations, DaiTinEnergy offers a kit for preparing the central plant controller, an advanced solution to equip CCIs with a power flow measurement kit. This kit consists of cutting-edge components such as the multifunction protection relay from the X-MORE series – XMR-P, a module for additional measurements equipped with a splitter and integrated network analyzer, the directional protection function package XSAS#PD00, along with a series of high-precision sensors (Thysensor) for in-field measurement of voltage and current, and a toroid for the measurement of zero sequence current.

This complete solution allows for optimal management and effective monitoring of plants, perfectly aligning with directives for sustainable and efficient energy integration.

DaiTinEnergy iCCI System: the comprehensive answer to new regulatory requirements

The Italian electrical system is undergoing a profound transformation, driven by the growing spread of distributed generation and the need to integrate renewable energy sources safely and effectively. In this context, the Central Plant Controller (CCI) has become an essential element in ensuring the observability and regulation of medium-voltage production plants.

The CEI 0-16 standard, together with ARERA Resolution 385/2025/R/eel, has established the mandatory installation of a CCI for all plants with a total rated power equal to or greater than 100 kW, both new and existing. This device, considered an “equivalent generator” from the point of delivery perspective, must be able to monitor electrical parameters, communicate securely with both the Distribution System Operator (DSO) and the Transmission System Operator (TSO), and intervene in the regulation of power and voltage according to the IEC 61850 standard.

In response to these requirements, DaiTinEnergy has developed the iCCI System — an integrated, robust and compliant solution designed to simplify plant adaptation and ensure full compatibility with the current regulatory framework.

A DaiTinEnergy solution designed for seamless integration

The iCCI System is a device for the centralised control of medium-voltage production plants, installed directly at the point of delivery. It has been designed to ensure continuous monitoring by the DSO and secure data transmission to the TSO, in full compliance with Annexes O and T of the CEI 0-16 standard, and by implementing the IEC 62443-4-1, IEC 62443-4-2, and IEC 62351-100-3 cybersecurity standards.

The iCCI System consists of a wall-mounted cabinet complete with GPS and wiring, and the DaiTinEnergy iCCI device.

The wall-mounted cabinet is designed for robustness and ease of installation, and includes:

• integrated wiring
• GPS with 10-metre antenna and mounting accessories
• AC/DC converter for power supply
• miniature circuit breakers for power disconnection
• terminal blocks for interfacing with field signals
• ±24 Vdc terminals for powering communication and measurement devices

Inside the cabinet, the Central Plant Controller – iCCI forms the digital core of the system, responsible for data management, communication, and security.

The iCCI controller, fully compliant with CEI 0-16, includes:      

• terminal blocks for interfacing with field signals
• the iCCI61850 licence for the IEC 61850 communication protocol
• the iCCICS unified Cyber Security certificate (valid for three years), ensuring secure connections with the DSO

A complete management ecosystem

For those seeking an even more advanced configuration, DaiTinEnergy also offers an optional predisposition kit. This kit includes CEI 0-16-compliant protection relays, high-precision measurement modules, ThySensor sensors, and toroidal current transformers for residual current measurement.

The integration of sensing, measurement, protection, and control simplifies the upgrade of existing plants and ensures optimal management even in the most complex operational contexts.

The iCCI System is compatible with plants of various sizes and configurations, suitable for both full-feed-in and self-consumption installations. It can acquire and transmit the main electrical quantities (active power, reactive power, and voltage at the point of delivery), monitor the status of general and unit devices, and modulate active power upon external command from the DSO.

To ensure the safety of the National Electric System and prevent the spread of disturbances in the Transmission system with severe repercussions on the entire national network, Terna has defined a Defense Plan. The Defense Plan includes all the control actions arranged by Terna itself and carried out through individual systems or devices, aimed at maintaining or returning the electrical system to a normal condition.

Main features that the UPDM device must ensure

The UPDM device developed by DaiTinEnergy

DaiTinEnergy's Offer

The DaiTinEnergy Bay Monitoring Unit (BMU) is responsible for monitoring and recording electrical parameters and protection device behaviour during transient events. DaiTinEnergy’s oscillographic disturbance recordings comply with Annex A.7 of the Terna Grid Code, ensuring full adherence to TSO requirements. 

Like the BCU, the BMU is part of the iBU family and is housed in a 19” rack-mounted chassis with redundant power supplies and modular boards. 

It connects to the station LAN, transmitting recordings in COMTRADE format (IEEE C37.111- 2013) and using IEEE C37.232 naming conventions for seamless storage and transmission to TSO central control systems. 

The DaiTinEnergy BMU is Terna-certified and deployed in both private and Terna-operated substations within SAS and DIGIS frameworks.