iRTU & iGW: General Characteristics

Control architecture based on iRTU & iGW units complies with the basis of scalability and modularity

Product highlights

  • Smart and modular remote telecontrol units suitable for Substation Automation and Telecontrol of MV grids.
  • High scalability and optimal adaptation to any particular need.
  • Availability of multiple communication options including embedded Ethernet switches, built-in 3G/GSM/GPRS or PSTN modems.
  • iRTU & iGW Series products may perform different functions within a facility based on their configuration. They can be used as remote telecontrol units, substation gateways, I/O IEDs, bay controllers, protocol converters, etc.
  • High I/O density. iRTU devices provide I/O capabilities for direct data acquisition which can be expanded by using iRTUe devices
  • All models come with a full range of protocols including IEC60870-5-101/102/103/104, IEC61850 MMS client & server, IEC61850 GOOSE publisher & subscriber, Modbus RTU/TCP, DNP3.0 (serial & TCP), DLMS, IEC62056, Procome and Profibus DP, in order to ensure the communication with new and legacy IEDs and SCADA master stations.

Technical features

iRTU & iGW family: The ideal solution for Substation Automation and Telecontrol of MV Networks

 

A distributed control architecture based on iRTU telecontrol units complies with the basis of scalability and modularity, providing a complete solution open to any technology and communication media. iRTU Series products may perform different functions within a facility based on their configuration: they are able to operate as Remote Terminal Units (RTU), as concentrators of data from other devices (gateways) or as a BCU (Bay Contol Unit), complying at all times with the required power transmission and distribution industry standards.

  • The basic communication configuration for iRTU & iGW units (B0 Series) is as follows:
    • (4) Serial ports (2.5 kVrms isolation) with TX/RX LED indicators:
      • – (1) Full RS232/RS422/RS485 serial port, software configurable
      • – (2) Basic RS232/RS422/RS485 serial ports, software configurable
      • – (1) RS422/RS485 serial port (EXP422 port) software configurable, for connection to iRTUe I/O expansion units.
    • (1) 10/100BaseTX Ethernet port (RJ45 connector)
    • (1) USB port to connect peripheral devices (USB drives, printers, etc.)
    • (1) MGMT port (MiniUSB connector) for local maintenance.
    • (1) MicroSD internal slot for up to 32 Gb data storage.
  • iRTU models are equipped with  internal I/O modules for direct data acquisition. Basic internal I/O boards options:
    • D1: 24 digital inputs
    • C1: 8 digital inputs, 4 relay outputs, and 2 DC current analog inputs.
    • – Other options upon request.
  • iGW models provide the same communication capabilities as the iRTU units, but with no internal I/O modules.
  • The above basic configuration may be expanded by adding different communication options.
    • S Series: Ethernet (10/100BaseTX and FX100 with RSTP and serial ports)
    • M0/M1 Series: built-in 3G/GSM/GPRS modem, Ethernet and serial ports
Features

 

  • Optimal adaptation in size, capability and performance to each particular need.
  • High scalability.
  • Rugged die-cast aluminium.
  • High I/O density. I/O capabilities can be expanded with iRTUe modules connected through EXP422 port
  • Multiple communication ports options including: 3G/GSM/GPRS, Ethernet (10/100BaseTX and 100BaseFX), RS232, RS485 and RS422 ports
  • Wide range of protocols including:
    • IEC60870-5-101 Master/Slave
    • IEC60870-5-104 (ETH and serial PPP) Master/Slave
    • IEC61850 MMS Client/Server
    • IEC61850 GOOSE Publisher/Subscriber
    • DNP3.0 (Serial and TCP) Master/Slave
    • Modbus RTU/TCP/UDP Master/Slave
    • IEC60870-5-102 Master
    • IEC60870-5-103 Master
    • DLMS Master
    • IEC62056-21 Master
    • Profibus DP Master
    • SNMP Agent/Manager
    • Procome Master
  • IEC61131-3 PLC automation: logic and PLC programming.
  • IEC61850-3 EMC compliant.
  • Real time clock with 1.5 ppm time drift.
  • Real time processing with 1 ms accuracy.
  • Time synchronization: SNTP (client and server), IEC60870-5-101, IEC60870-5-102, IEC60870-5-103, IEC60870-5-104, DNP3.0, DLMS, Profibus DP, Procome.
  • Calculations and formulas using LUA language.
  • Configuration is quick, simple, and easily accomplished using the provided iConf configuration tool.
  • Local maintenance (through USB port) and remote maintenance (Telnet and FTP), with the highest levels of security.
  • Omega DIN rail mounting.
  • 2.5 kVrms isolation in the power supply, I/O and serial ports.
  • Extended temperature range: -25ºC to +70ºC.
  • Complies with all electrical, electromagnetic compatibility and environmental standards required by the power industry.
Tecnical Specifications

Communications

  • (4) 2.5 kVrms isolated serial ports with LED indication (TX, RX):
    • (1) RS232/RS422/RS485 (COM1) serial port, software configurable
    • (2) RS422/RS485 (COM2 & COM3) serial ports, software configurable
    • (1) EXP422 port (RS422/485 software configurable), for connection to iRTUe devices, or to other devices.
  • (1) Ethernet 10/100BaseTX port (RJ45)
  • Others:
    • (1) USB port to connect peripheral devices (USB drives, printers, etc.)
    • (1) Management (MGMT) port (MiniUSB connector) for PC connection (local maintenance)
    • (1) MicroSD internal slot for up to 32Gb data storage
  • Communication options:
  • Protocols to Control Center:
    • IEC60870-5-101
    • IEC60870-5-104 (ETH and serial PPP)
    • IEC61850
    • DNP3.0 Level 4 (serial, UDP, TCP and TCP Dual)
    • Modbus RTU/TCP
  • Protocols to IEDs (meters, protection relays, etc.):
    • IEC60870-5-101
    • IEC60870-5-102
    • IEC60870-5-103
    • IEC60870-5-104
    • IEC61850
    • DNP3.0 Level 1 (serial and TCP)
    • Modbus RTU/TCP
    • DLMS
    • Procome

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I/O Configuration

  • iRTU units include internal I/O modules. Basic model (iRTU-B0D1) is equipped with D1 I/O card (24 digital inputs module). Other options upon request.
  • I/O capabilities can be expanded with iRTUe expansion devices. Options:
    • iRTUe-D1D1: 48 DI (Digital Inputs)
    • iRTUe-D1R1: 24 DI (Digital Inputs) + 8 output relays
    • iRTUe-D1A1: 24 DI (Digital Inputs) + 8 AI (Analog Inputs, 20 mA)
    • Other configurations upon request

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Power Supply

  •  Power supply options: 24Vdc, 48Vdc or 125 Vdc (-20%, + 15%). Contact iGrid T&D for other power supply options.
  • 2.5kV dielectric insulation
  • Reversible polarity
  • Consumption (depends on model):
    • Less than 3W for B0 series,
    • 15W for S0 Series

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Applications and Maintenance

iRTU & iGW units allow maintenance and configuration tasks to be performed, both locally and remotely over the IP network. Performance of maintenance tasks may be accomplished by using standard software tools, e.g.:

  • Communication trace display: Telnet manager (HyperTerminal or similar)
  • Data uploading or downloading: FTP manager (Windows File Explorer or similar)
  • iConf tool for configuration and management of iRTU/iGW units

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iRTU/iGW application

The main characteristics of the RTU application, available for iRTU and iGW units, are:

  • Use of standard protocols
  • 1 ms resolution timestamping.
  • Fast logic blocks, commonly used in electrical facilities.
  • Fully user configurable programming of logic and automatic functions by programmable state machine.
  • Remote telemaintenance (Telnet, FTP)
  • Remote configuration upload over an IP network
  • Remote firmware update over an IP network
  • XML based open configuration files that allow integrating any configuration system
  • Operating trace storage
  • SOE (Sequence of events) of 1024 points
  • Time synchronization over SNTP, IEC-60870
  • Continuous self-diagnose system and hardware watchdog
  • Real time clock (RTC): 1.5 ppm precision
  • Operating condition and communication signal indicator LEDs

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Physical Characteristics

  • DIN rail mounting
  • Interconnection between iRTU/iGW unit and iRTUe devices through 6-wire patch cable with RJ12 connectors
  • Physical dimensions: 173x137x78.4 mm
  • Weight depending on model: 900 to 1200gr

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Environmental Conditions

  • Operating Temperature: -20º to +70ºC
  • Humidity: 93% non-condensing at 55ºC

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Regulations

  •  EN55022: Information technology equipment. Radio disturbance characteristics. Limits and methods of measurement
  • EN61850: Communication networks and systems in substations
  • EN60255-5: Electrical Relays. Insulation Coordination for Measuring Relays and Protection Equipment. Requirements and Tests
  • IEC6100-4 , IEC6100-6-4/5: Electromagnetic Compatibility (EMC)
  • IEC60870-2-2: Telecontrol equipment and systems. Operating conditions. Environmental conditions
  • IEC60950-1: Information technology equipment. Safety. General requirements
  • RoHS compliant

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