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Remote Terminal Unit based Monitoring and Control


Communicate securely to SCADA systems, the smartRTU addresses requirements for 100 % reliable remote surveillance and control of distributed assets, even in extreme climates. With powerful functions like diagnostics, alarm and event-storage and time trend data buffering, it meets the challenges of managing massively distributed assets such as data security, interfacing issues, data continuity and reliable communications.

Mitsubishi Electric‘s meets these demands with the smartRTU. It supports protocols such as DNP3 and IEC 60870. The smart- RTU combines the reliability and robustness of our standard PLC technology with a smart communication gateway, the ME-RTU gateway. Depending on the size and complexity of the application, select the required smartRTU power, pairing the ME-RTU with either an FX-, L-, or Q-Series PLC.

Your benefits

Mitsubishi Electric‘s smartRTU combines the needs of a large number of industries into a single device that is simpler than conventional RTUs, yet provides powerful capabilities that can be easily deployed and administered, even by staff with low skill levels. The smartRTU is scalable from a handful of sites to many hundreds with remote configuration management.

The Mitsubishi Electric smartRTU

  • Minimizes your engineering costs through central engineering
  • Deployable in brownfield applications due to multiple fieldbus support
  • Copes with demands of small up to large sites
  • Very low power consumption
  • Stores and forwards your data by an embedded historian that allows timestamped event logging and data sampling for extended periods of time
  • Communicates your data-packets via hacker proof SSL-encrypted VPN tunnels

Product range

FunctionSpecificationSupplementary Information
I/O capacityFX3; 14-384 maxControllable I/Os
L CPU; 24-4096 max.
Q CPU; 32-8192 max.
Power ConsumptionFX; 12 W16 digital I/O version (8xDI, 8xDO)
L; 17 W24 digital I/O version (16xDI, 8xDO)
Q; 14 W32 digital I/O version (16xDI, 16xDO)
Analog I/OsInput:0-5V; 0-10V; -10V-10V; TC/RTD; 0/4-20mA
Output:0-5V; 0-10V; -10V-10V; 0/4-20mA
Digital I/OsInput:Voltage: 24VDC
Output:Transistor: sink or source (5 ~ 24 VDC), Relay (up to 240 VAC)
Additional I/OsTurbine meter counters (Input):
Pulse output (Gate / Servo Positioning Modules):
• Signal levels = 5, 12, 24VDC, differential line driver inputs
• Frequencies: 50Hz – 200kHz ranges available
• 10 ~ 100,000 pulse/sec outputs
Communication channelsCellular network (GPRS, EDGE ) – Quad-Band 850 / 900 / 1800 / 1900 MHz)• Via built-in cellular transmitter/receiver
• SMA antenna connector
• User-provided SIM Card with data contract / APN from local cellular network provider
Ethernet (10/100 Mbps)RJ45 connector to, for example, corporate WAN (IEEE 802.3), xDSL (ITU G.992.x) or
PLC (Power Line Communication) WAN (IEEE 1901) *1
SerialVia USB port plus USB / serial converter to an external Radio, PSTN or satellite modem
Communication protocols (host-side)DNP3 (IEEE 1815)Yes (Level 2 Slave)
IEC 60870-5-101Yes (Slave)
IEC 60870-5-104Yes (Slave)
Communication protocols (field-side)IEC 60870-5-104Yes (Master)
IEC 61850 *2Yes (Client + Publisher/Subscriber for GOOSE)
Time synchronisationSNTP / NTP (or from DNP3 / IEC 60870-5 protocol)Selectable from suitable (S)NTP server (GPS, GLONASS, Radio clock sourced) or via the DNP3 or IEC 60870 protocols
Store and forwardYes• RTU samples and stores data locally when communication channel to SCADA host is interrupted and transmits this stored data when the channel is restored
• User configurable store and forward buffer size
Fieldbus supportBus TechnologysmartRTU – FXsmartRTU – LsmartRTU – Q
SlaveX X
Modbus/TCPMaster  X
Slave  X
Modbus/RTUMasterX X
SlaveX X
DeviceNETMaster  X
SlaveX X
CC-Link IE FieldMaster XX
Slave XX

*1 External router required

*2 IEC 61850 available in an upcoming Version

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