Low Power Consumption Autonomous Controller (FCN-RTU)

FCN-RTU: Low Power Consumption Autonomous Controller

The low power consumption model of the field control node (FCN) autonomous controller meets the demanding requirements at inhospitable remote locations which lack power.

Exclusive features for FCN-RTU

  • Modular type PLC/RTU
  • Low power consumption (1.6W to 2.9W)
  • Wider operation temperature (-40 to 70°C*)
  • Wide voltage range power supply (10 to 30 V DC)
  • One Ethernet, three RS-232, and one RS-422/RS-485
  • Multiple built-in I/O on CPU module
  • Improved file system stability in case of power failure

*Depending on I/O modules


For steady operations, high reliability is an essential requirement in the systems that controls and acquires data from various devices and processes and which interlink with other controllers in the control domain. The STARDOM autonomous controllers FCN-RTU have rugged and highly reliable software and hardware.

Durable Hardware

FCN-RTU has a highly durable design. In addition to features such as fan-less cooling, there are no IC chips on the backplane, preventing mechanical failures. Furthermore, the use of error check and correct (ECC) memory* prevents software failures.

Secure control even in hazardous applications

FCN-RTU has received ATEX type n certification, FM approval and CSA certification and provides safe and secure control even in hazardous applications. Optional corrosion-proof coatings are also available.

Advanced Self Diagnosis

Rich diagnostic functions make it possible to keep track of CPU temperature, SRAM memory status, and I/O module status. In addition to the diagnostic functions that are performed by the CPU, the analog input modules have embedded self diagnostic functions that can detect disconnected wires and short-circuits by continuously monitoring the loop status. 


STARDOM capability of establishing connections to a various network types results in big cost reduction for the customers. Networkability of STARDOM autonomous controllers FCN-RTU designed for the hazardous area shows absolute advantage in the various applications requiring remote monitoring and operation.

More communication choices on CPU

Remote applications require the various types of modems for seamless connection with control and information networks using narrow bandwidth network infrastructure including public telephone lines, GSM/GPRS, satellite, and radio. To meet these requirements, the following network interfaces are prepared.

  • One 100 BASE-TX Ethernet port with power saving mode.
  • Three RS-232 serial ports (one port up to 115.2 kbps)
  • One RS-422/485 serial port up to 115.2 kbps

Field Network Supported

Network Protocol
Upper-level systems Ethernet VDS (TCP/IP), FAST/TOOLS (TCP/IP, DNP3, Modbus TCP), HIS (Vnet/IP via gateway)
Other vendor SCADA systems (OPC, DNP3, Modbus TCP)
Serial (RS-232, RS-422/485) FAST/TOOLS (Modbus RTU/ASCII), Other vendor SCADA systems (Modbus RTU/ASCII, DNP3)
Other devices Ethernet FA-M3 (driver available), MELSEC (driver available), others (Modbus TCP)
Serial (RS-232, RS-422/485) FA-M3 (driver available), MELSEC (driver available), others (Modbus RTU/ASCII)
Fieldbus FOUNDATION™ fieldbus FOUNDATION fieldbus devices
HART HART devices
CANopen CANopen devices
ISA100 ISA100 wireless devices


FCN-RTU controller applications are written in programming languages compliant with the IEC 61131-3 international standard, so users do not need to learn manufacturer-specific programming languages and can start engineering immediately.

IEC 61131-3 Compliant Programming Languages

Concise applications can be developed by choosing the most suitable programming language for each application or the preference of the user from five IEC 61131-3 compliant languages including Function Block Diagram, Ladder Diagram, and Sequential Function Chart. Loop control and sequence control can be coded within the same environment, further improving engineering efficiency.

Reuse of Programs

Engineering efficiency is improved by reusing the programmed and verified applications by using the following methods.

- Encapsulation

IEC 61131-3 compliant program allows your know-how to be encapsulated into reusable POU (Program Organization Units.) These POUs can be protected against user modification.

- Network Template

Network Template, which is a code frame programmed by FBD, LD, ST or IL, makes reuse of program easier. Network Template is inserted into any applications and modified corresponding to applications.

Efficient Debugging

- Software Wiring to Aid Debugging

Virtual wiring to input/output modules can be defined in the software, and so loop checks and testing of ladder sequences can be performed without actual inputs to the FCN-RTU from a calibrator or test switches.

- Simulator Functions for Efficient Development

The simulator functions simulate the control applications of the FCN-RTU on a PC. Since this function does not require FCN-RTU hardware, control applications can be developed simultaneously by two or more engineers. Alternatively, applications can be developed and debugged separately from applications running on FCN-RTU. 


Quick troubleshooting is the key to increasing the availability of the systems. From trouble shooting to the replacement of modules, STARDOM helps people on site perform simple maintenance procedures.

Troubleshooting on site

Expert engineers in the central control room can remotely check the CPU status on Web pages on the FCN-RTU.

Online Download

Online Download

Your application can be modified without interfering your process. By using online download functions on Logic Designer, application running on dual redundant CPUs is automatically synchronized and variables on the applications can be inherited.

Quick start after replacing I/O

replacing I/O

Thanks to hot swappable I/O module features, I/O definitions are automatically downloaded to I/O modules without use of PC tools. While replacing I/O modules, rewiring cables are not required.




A TCP/IP based network enables a seamless connection with control and information networks using COTS network components, and also allow the easy adaption of controllers for use with narrow bandwidth network infrastructure including public telephone lines, GSM/GPRS, satellite, and radio.

Yokogawa System Integration

STARDOM controllers act as Yokogawa DCS controllers via gateway. From a single window on the Yokogawa DCS HMI, operators enjoy seamless and transparent access to all the utilities on these different systems, with complete consolidation of all alarms.

system requirement

Image Zoom

Network Reference

STARDOM capability of establishing connections to a various network types results in big cost reduction for the customers. Networkability of STARDOM autonomous controllers designed for the hazardous area shows absolute advantage in the various applications requiring remote monitoring and operation.

Suitable Network Architecture for COTS Network Infrastructure

STARDOM autonomous controllers are suitable for the geographically distributed area since software architecture is highly independent and control network easily adapts to the COTS network infrastructure.

Network Installation Records for Various Networks

Customers have already installed STARDOM autonomous controllers to a wide range of applications under various network infrastructures. 


Network Type Application Name
Wireless GPRS/GSM

Power meter reading (Power)
Heat and CO2 custody transfer system (Power)
Water pipeline leak management system (Water)
Automatic custody transfer system for cryogenic gas by truck delivery (Chemical)
Water dispensing bays control (Mining)
Environmental monitoring (Others)
VSAT (Satellite) Pipeline operation (Oil & Gas)
Wellhead monitoring (Oil & Gas)
Radio Link Gas development management system (Oil & Gas)
Oil platform - offshore CO2 metering (Oil & Gas)
Tram data (signals, points, location, etc) logging (Others)
Power metering and distribution control (Power)
Control system in the wells cellulose production line (Paper)
Wired ADSL+VPN Oil collecting station (Oil & Gas)
Co-generation utility monitoring (Oil & Gas)
Cryogenic gas control and custody transfer (LNG)
Water pipeline leak management system (Water)
Water treatment plant monitoring and controlling pumps (Water)
PSTN Cryogenic gas control and custody transfer (LNG)
Water gate valve control (Water)
Water pipeline leak management system (Water)
ISDN Co-generation utility monitoring (Oil & Gas)
Leased Line Gas district cooling - chilled water monitoring (Oil & Gas)
  • La Primer Terminal de Regasificación Offshore del Mundo confía en el ICSS  de Yokogawa (CENTUM CS 3000, ProSafe-RS)
  • Programación del operador de LNG, descarga, almacenamiento de tanques, y vaporización son todas los procedimientos basados en operaciones.
  • The STARDOM network-based control system and FA-M3 range-free controllers play an important role in smoothing out the supply of this power to the grid
  • STARDOM and FA-M3 ensure smooth supply of power to grid by wind farm equipped with large-capacity NAS batteries

A medida que aumenta la demanda mundial de alimentos, los fertilizantes juegan un papel esencial en la mejora de la productividad agrícola. El Nitrógeno OCI (en adelante OCI) es un productor líder de fertilizantes minerales y el mayor productor mundial de melanina, los cuales se utilizan para hacer adhesivos y resinas para una amplia gama de aplicaciones, tales como paneles de muebles, pisos laminados, revestimientos, pinturas y plásticos.

  • Reducción de costos de cableado mediante el uso de una infraestructura de red GPRS de productos básicos
  • Reducción adicional en el costo del sistema haciendo uso completo de los componentes existentes
  • Reducción del costo del software mediante el uso de toda la tecnología basada en web
  • Contrato de servicio a largo plazo - no hay necesidad de preocuparse por una suspensión de los servicios de mantenimiento
  • Solución Integrada SCADA con STARDOM y FAST/TOOLS  para el oleoducto multiproductos de Indian Oil Corporation.
  • El STARDOM facilita la visualización completa de los datos necesarios para las operaciones de tuberías seguras y confiables.

The STARDOM™ network-based control system is composed of highly independent components that are based on the latest network technologies.

  • El sistema confiable de monitoreo y control de la primera planta de desalinización a través de una membrana de 16" con agua de mar por ósmosis inversa (SWRO).
  • Mediciones precisas de los parámetros SWRO con medidores de conductividad Yokogawa, medidores de pH y medidores de flujo magnéticos los cuales contribuyen a una vida útil más larga de la membrana SWRO y reducen el Costo Total de Adquisición.



The municipal water system of Oviedo, Florida provides high quality water to more than 30,000 area residents from its West Mitchell Hammock and A.M. Jones water treatment facilities. The West Mitchell Hammock facility is designed to provide an average daily flow of 10 million gallons per day (MGD), with an ultimate design flow of 16 MGD. 

Especificaciones Generales
Información Técnica

Información del Producto


    Yokogawa se complace en presentar un tutorial sobre la configuración de la dirección IP de la red en un controlador Stardom Hibrido RTU/PLC/PAC. El video guía al usuario a través de la preparación de la unidad Stardom para el uso inicial de la red a medida que llega de la fábrica o en el caso de que la dirección IP sea desconocida y que deba redescubrirse o alterarse.


    Yokogawa presents a demonstration of how the combination of Stardom FCN-RTU and FAST/TOOLS SCADA can be combined to provide a powerful control and data collection system where in the event of a network disconnection or computer outage - Stardom internally buffers data that would otherwise be lost and on reconnection or restoration of the SCADA Server FAST/TOOLS is able to back-fill missing data in its trend.

    Información del Producto

    El sistema de control de red de Yokogawa, serie STARDOM, está diseñado para cumplir con todos los requisitos de la industria.


    Yokogawa is pleased to present a quick tutorial on the Control Program Editor - Logic Designer for Stardom RTU/PLC/PAC Controller. This video covers the basics of the Logic Designer editor interface without getting into detail on controls programming.


    Yokogawa is pleased to present a tutorial on downloading control projects from Logic Designer to the Stardom RTU/PLC/PAC controller.



    Yokogawa presents a tutorial on configuring the Modbus Server communications capability of the Stardom RTU. A review of a preconfigured example (Example 11 under the Samples folder of Application Portfolio DVD) program featuring Modbus Client and Server capabilities is followed by a demonstration of how to create a configuration from a blank project - including which libraries need to be added to the Logic Designer programming environment. Note that Modbus capabilities for Stardom are an option that need to be licensed as part of CPU properties. Modbus library support can be purchased separately (FCN and FCJ model) and it is also included as part of the Infowell option. Modbus support comes standard on FCN-RTU (models SA0, SA1 and S10, S11).


¿En busca de información adicional sobre Yokogawa Iberia, tecnología y soluciones?