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IT-Maintenance, May 11th 2025

“Remote Transmission Units” for Digitizing Power Grids

RTU for Telecontrol Technology

As their platform, WAGO’s RTU solutions use the modular WAGO I/O System, which has a long record of success on the market. For this purpose, special telecontrol protocols (IEC 61850, IEC 60870, DNP3 and Modbus®) have been 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.

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

Your Benefits:

  • Versatile communication interfaces
  • Streamlined usage and low life-cycle costs
  • Approvals for harsh substation conditions
  • Absolutely secure and reliable – fulfills high cybersecurity standards

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.

Straightforward Handling

  • Highly modular I/O modules for custom node designs
  • Intuitive configuration tools and project-specific Web interfaces make commissioning easier and reduce life-cycle costs
  • Freely programmable IEC 61131-3 control logic
  • Linux® MicroServices (Docker®) directly applicable

Approvals for Substation Automation

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

Absolutely secure and reliable

  • Meets the 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

RTU (Remote Terminal Unit)

Robust and highly tolerant are the key characteristics of the WAGO Remote Terminal Unit (RTU) for telecontrol technology. Whatever the temperature fluctuations, vibrations, shocks or electromagnetic interference – retrofit telecontrol technology according to your needs and requirements. The WAGO Remote Terminal Unit (RTU) is ready – for standard applications or extreme uses.

Products
Telecontrol Technology Protocols
Configurators
Certificates and Approvals

Products

750 Series Telecontrol Station (RTU)

Compactness, heat- and cold-resistance and precise customization: These are the benefits the WAGO Telecontrol Station (RTU) for telecontrol technology offers on the product side.

The Benefits for You:

  • Use from 0 to 55 °C (32 to 131 °F) / –20 to 60 °C (−4 to 140 °C) without air-conditioning
  • Compact, space-efficient design
  • Industrial standard per IEC EN 61000-6-2/-3
  • Withstands up to 0.5 g acceleration
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XTR Telecontrol Station (RTU)

The WAGO XTR Telecontrol Station (RTU) – for environments no other telecontrol technology solutions can handle. It boasts extreme temperature resistance, immunity to interference and resistance to vibrations and impulse voltages. It is ready for use in renewable energy plants, distribution substations, the petrochemical industry, and water treatment/waste water facilities.

The Benefits for You:

  • Temperature resistance from −40 to +70 °C (−40 to 158°F)
  • Ready to use per IEC EN 60870-2-1; allows greater availability even in unprotected areas; also compatible with standard telecontrol technology
  • Resistance to impulse voltage up to 5 kV
  • Withstands up to 5 g acceleration
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Flexible Control for Small Applications: PFC100

The compact PFC100 controller has 512 MB of memory – ideal for use in the building and mechanical engineering industries.

  • Programmable via CODESYS per IEC 61131-1
  • Open Linux® platform
  • Comprehensive security functions
More information on the PFC100
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Powerful and Flexible for Medium to Large Applications: PFC300

The PFC300 is designed for demanding applications in machine, process and building environments. Equipped with 2 GB of RAM and a 64-bit processor, it delivers high performance and reliability for large-scale operations.

  • Programmable with CODESYS (IEC 61131-1) on a Linux® operating system
  • Comprehensive security functions
  • Dual-core processing
  • USB-C service port

More about PFC 300
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Compact Controller 100

Thanks to its DIN-rail-mount enclosure design and integrated I/Os, the Compact Controller 100 offers minimal space requirements in the control cabinet. With this compact controller, you can solve individual automation tasks in your environment.

Your Benefits:

  • Compact controller with integrated I/Os
  • DIN-rail-mount enclosure
  • CODESYS engineering environment
  • Optional CAN interface
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WAGO Touch Panels 600

With the powerful WAGO Touch Panels 600, comprehensive control and telecontrol functions are joined by local graphical user guidance – for example, for direct configuration of telecontrol applications via the operator interface.

Your Benefits:

  • RTU and touch panel integrated
  • Powerful quad-core processor allows implementation of comprehensive control and gateway functions
  • “IoT” connectivity and “Docker®-ready”
  • Integrated engineering and cybersecurity concept
  • “Standard” variant or “Advanced” variant with capacitive touch available
  • UL- and DNC-approved for demanding environmental conditions
  • Ambient temperature (operation): −20 … +55 °C (−4 ... +131 °F)

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Edge Controller

The WAGO Edge Controller is designed for advanced RTU protocol gateways, data concentration, IoT connectivity and data pre-processing at the edge.

Key Benefits:

  • Powerful ARM Cortex-A9 quad-core processor for comprehensive control and gateway functions
  • IoT connectivity and Docker®-ready for specialized edge applications
  • Integrated engineering and cybersecurity for enhanced protection
  • DRM license model for function extension (RTU, BACnet®, EtherCAT® and more)
  • Extended temperature range: −20 … +60 °C (−4 … 140 °F)
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PFC Controllers

The PFC performance class contains devices that can be programmed and configured with CODESYS V2.3. That makes them an excellent choice for future-proof migration solutions.

The second-generation PFC Controllers have received an upgrade.

The Linux® operating system makes it possible to implement comprehensive cybersecurity measures or use your own Linux® MicroServices or IoT connections with the PFC.

Controller Overview

Overview of Compact Controller 100

Touch Panels 600 and Edge Controllers

With their quad-core processors, the Edge Controllers and the Touch Panels 600 are currently the most powerful controllers in WAGO’s portfolio.

Both Edge Controllers and Touch Panels 600 share a common telecontrol technology and are largely compatible with WAGO's controllers.

Edge Controller
Touch Panel Product List

Touch Panels 600 and Edge Controllers Overview

Digital Rights Management

Digital Rights Management (DRM) enables licensing of specific remote functionalities on controllers from the PFC family as needed. These licenses can be used either individually or in combination.

License TypeML
IEC 60870Server

License Number


Server


Redundancy Groups


Connections

2759-290/211-1000


2x for -104 and 4x for -101


3 for -104


4 for -104

2759-291/211-1000


2x for -104 and 4x for -101


10 for -104


4 for -104

Client

License Number


Connections (-101, -104)


Connections (-103)

2759-293/211-1000


10


20

2759-296/211-1000


10


40

DNP3Server

License Number


Server


Connections

2759-2290/211-1000


2


4

2759-2291/211-1000


4


4

Client

License Number


Connections

2759-2293/211-1000


4

2759-2296/211-1000


4

IEC 61850Server

License Number


Server


Connections


Logical Devices


per LD DataSets


per LD Reports CB


per LD GOOSE CB

2759-2240/211-1000


1


5


20


20, each with 50 entries


20


20

2759-2241/211-1000


1


5


40


20, each with 50 entries


20


20

Client

License Number


Client


Connections


Read requests per connection


GOOSE Subscriptions

2759-2243/211-1000


1


20


21


10 GCB

2759-2246/211-1000


1


30


32


10 GCB

Total number of telecontrol objects25005000

Telecontrol Technology Protocols

Different configurations of the communication protocols are available depending on the engineering environment. Protocols can also be combined with each other (within the system limits) – for instance, in order to implement various gateway functions:

Telecontrol Protocol ConfigurationCODESYS V2.3CODESYS V3.5

IEC 60870

Slave (Server, Telecontrol Substation)-101, -104-101, -104
Master (Client)-101, -103, -104-101, -103, -104

IEC 61850

Serverxx
Clientxx
GOOSEPublisher and SubscriberPublisher and Subscriber
DNP 3Slave (Outstation)TCP and serialTCP and serial
MasterTCP and serial
1 of 3

IEC 60870

  • IEC 60870-5-101, -104 Slave
  • IEC 60870 -5-101, -103, -104 Master
  • 2 slave instances (IEC104) or 4 slave instances (IEC101) possible
  • 1 … 4 Multi-Master client connections (independent connections after Edition 1) or Multi-Link (redundancy after Edition 2) per slave
  • IP address filter (white list)
  • 1 … 16 ASDU addresses configurable
  • Scalable telegram length: 64 … 253 bytes
  • Freely configurable platform with up to 2000 or 5000 objects per station (depending on hardware and license)
  • Direct execution of commands (Direct Operate) or selection and execution (Select before Operate)
  • Command lock for single and double commands and aging management
  • Support for count value modes A … D
  • Optional command responses for single and double commands
  • 8 … 256 kByte of historical data (remanent data storage on SD card possible)
  • IEC 103 Master: Receives error messages and saves them in COMTRADE format
  • IEC 101/104 Slave: File transfer (TK 120 – 126)
  • Time synchronization via NTP or TK 103
  • Import/export function of data point lists in CSV format
  • Optional TLS encryption for IEC 104 Slave (TLS 1.2)
  • DNV certification (IEC 60870-5-104 Slave)

IEC 61850

  • IEC 61850 MMS Server and Client
  • IEC 61850 and IEC 61400-25 Server, Edition 1 and Edition 2
  • 1 server with up to 20 logical devices (LD)
  • 1 client with up to 20 server connections
  • Freely configurable platform with up to 2000 or 5000 objects per station (depending on hardware and license)
  • Buffered and unbuffered reporting
  • GOOSE publisher and subscriber
  • Server: Max. 20 data sets with max. 50 objects for each LD
  • Server: Max. 20 RCB for each LD
  • Client: Max. 32 requests per connection
  • Client: Max. 32 data sets with 100 entries each
  • Free extension of the data model with own LN, CDC, DO and DA
  • Supported input formats: ICD, SCD, SSD and CID files
  • Supported export formats: ICD and CID files
  • Optional TLS encryption for server (TLS 1.2)

DNP 3

  • DNP3 outstation (server)
  • DNP3 master (client)
  • 1 … 4 master connections, freely configurable for serial and ETHERNET
  • Freely configurable platform with up to 2000 or 5000 objects per station (depending on hardware and license)
  • IP address filter (white list) for ETHERNET connections
  • Event buffer (<= 100000 events) in RAM or remanent storage on SD memory card
  • Automatic or manual start index assignment for objects
  • Scalable hysteresis of the master’s analog inputs (object group 34)
  • Direct execution of commands (Direct Operate) or selection and execution (Select before Operate)
  • 8/16-bit configurable object qualifier
  • Unsolicited messages (modes A … E) with optional class-specific transmission parameters
  • Outstation: File transfer for serial and ETHERNET (object group 70)
  • Time synchronization via NTP or DNP3 (object group 50)
  • Import/export function of data point lists in CSV format
  • Import/export function of configuration and data point lists in “DNP3 Device Profile” format
  • Optional TLS encryption for outstation (TLS 1.2)

Configurators and Programming

The telecontrol configurators are integrated directly into the CODESYS V2.3 engineering environment.

After conveniently configuring the desired telecontrol application, the corresponding code is automatically generated for the controller.

Now it is possible to program gateway functions or additional logic per IEC 61131-3, such as a supply controller with a TÜV-certified library.

The integrated Web visualization is ready for diagnostics and/or configurations.

Implementing simple RTU applications is also very convenient with the new stand-alone telecontrol configurator. This means communication objects can be quickly and easily created and mapped to the existing I/O datapoints – without any complex engineering tools.

CODESYS V2.3: Configuring Telecontrol Stations (RTU) and Programming Applications

CODESYS V2.3 is an engineering tool based on IEC 61131-3 for creating control configurations, control logic and visualizations. The configurations for telecontrol technology are already integrated.

Key Benefits:

  • An engineering tool for ETHERNET Controllers and PFC200/PFC300
  • Integration of IEC 60870-5 (client/server), DNP3 (master, outstation), IEC 61850 (Client/Server/GOOSE)
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CODESYS: WAGO Telecontrol Configurator: Easy Telecontrol Station (RTU) Configuration

The WAGO Telecontrol Configurator is stand-alone software that streamlines the configuration and operation of your telecontrol station (RTU). The telecontrol configurator cannot further process the data in the decentralized telecontrol station (RTU) with this software.

Key Benefits:

  • Easy commissioning of an RTU coupler
  • Send data from the WAGO I/O System’s digital and analog measurement modules to a DNP3 or IEC 60870-5-101-/-104 control system (monitoring direction)
  • Both analog and digital data transfer from the control system to the I/O module (command direction)
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Certificates and Approvals

Valid approvals and certifications are required for the safe, secure operation of telecontrol technology globally – especially where the functionality of supply and distribution grids is concerned.

That’s why we have certificates for the three most important telecontrol protocols, IEC 61850, IEC 60870 and DNP 3, and renew them regularly so you can confidently use WAGO telecontrol technology. The certified telecontrol protocols add an extra level of security whenever third-party components are connected to or incorporated into the WAGO telecontrol system.

RTU Applications

Solutions

Whether electrical power, gas, water or heat: Due to the increasing decentralization of energy generation and integrated grids, as well as sector coupling, data transfer volumes and communication challenges are growing. As a telecontrol technology supplier, WAGO has just the solution – secure, economical and primed for the future.

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Reliable Telecontrol Technology

The world’s fossil fuel supply is finite, and global warming is already well underway. Failure is not an option for the energy transition. Telecontrol technology will play a special role in the implementation, since the electricity, gas, water and heat infrastructures in particular involve spread-out service areas and remote stations.

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