Modular RTU


Modular RTU

Modular ELVAC RTUs are devices for remote monitoring, control, measurement and data acquisition in many fields of industrial automation, especially in the power industry.

The modular concept allows any system configuration to be tailored to the application, from small systems to large systems with hundreds to thousands of inputs and outputs consisting of many units that appear as a single system.

Over many years of development in collaboration with our system users, we have equipped our systems with many sophisticated, high value-added features that allow us to solve given types of applications with a single device rather than many intricately interconnected devices with problematic compatibility and different software features. By using these our integrated features, the whole system can be much more efficient in terms of cost, reliability, ease of system design, deployment and maintenance. We also offer systems that are fully compliant with cybersecurity requirements.

For a better understanding and easier real use of our systems, in addition to extensive documentation, we also offer training for users and quality technical support, thanks to which we manage to keep expanding our satisfied users in different countries of the world.

One Modular Platform for a Wide Range of Power Distribution and Renewable Energy Sources Monitoring and Control Solutions
  • Optional size:
    • DIN rail mounting (vertical or horizontal) – 2, 3 slots,
    • panel mounting – 2, 3, 5, 8, 10, 16 slots,
    • 19″ rack mounting – 16 slots.
  • Integrated power supply 10 – 60 V DC in 2 and 3-slot versions.
  • 8, 10 and 16-slot chassis available in redundant power supply versions.
  • Optional supply voltage ranges:
    • 10 – 60 V DC,
    • 80 – 275 V DC,
    • 80 – 260 V AC.
  • Redundant power supply is possible with buses marked “R” for 8, 10 and 16-slot versions.
  • Power supply cards are not used in 2- and 3-slot chassis where the 10 – 60 V DC power supply is integrated directly on the bus.
  • Batteries can be charged and monitored directly in the RTU for easy and timely maintenance.
  • Backup is integrated on the cards for AC power (12 V or 24 V batteries).
  • For DC systems, we offer separate backup cards for 24 V and 48 V.
  • The cards include connectors for lead acid battery, temperature sensor and ON REL – Life contact.
  • Small systems in a 3-slot chassis have an optional battery charger integrated on the bus together with the power supply.
  • Selectable HW interfaces according to the card version:
    • GSM/LTE modem,
    • Ethernet LAN,
    • RS-232/422/485,
    • optical (using SFP modules).
  • Supported communication protocols: IEC 61850, IEC 60870-5-101, IEC 60870-5-103, IEC 60870-5-104, DNP3, HIOCom2, MODBUS TCP/RTU, DLMS, OPC UA, SNMP.
  • Multi-channel communication support (e.g. for backup communication).
  • Communication security according to IEC 62351-3 (TLS).
  • OpenVPN and IPSEC tunnels.
  • Built-in RTC.
  • Integrated web-based configuration interface and HMI support.
  • Programmable to IEC 61131-3 or proprietary GUI.
  • NAT, Firewall, user access control, RADIUS, Syslog, NTP, SSH, SCEP, SQL storage support.
  • Options:
    • 20 x optically isolated inputs on standard cards,
    • 10 x optically isolated inputs on combined cards with 5 x DO.
  • Available for “dry” (internal signal voltage source) or “wet” contacts (for various external signaling voltages).
  • Signal filtering (contact bounce, AC signal).
  • Options:
    • 10 x relay output (load up to 8A),
    • 5 x relay output (load up to 8A) on combination cards with 10 x DI,
    • 20 x optical relay outputs (load up to 800 mA).
  • Dual HW and SW output control – protection against accidental switching.
  • Options for:
    • 3-phase voltage and current measurement,
    • power quality and energy measurement,
    • special fast measurements (up to 40 MS / s),
    • industry standard inputs and outputs – 20 mA or 10 V,
    • temperature sensors – Pt100, Pt1000, Ni120, K-type thermocouples.
  • Features of 3-phase measurement cards:
    • Measurement and calculation of V (L-N, L-L), I, P, Q, S, f, cos φ, THD,
    • calculation of U0 and I0 (optionally directly measured by 4th input),
    • fault locator,
    • Input options for standard VTs, CTs, low power sensors, Rogowski coils or direct measurements,
    • inputs have defined overload with measurement, which is used e.g. in protection applications – see input specifications in the catalogue,
    • integration and differential filtering,
    • line fault records (waveforms) – proprietary or COMTRADE format,
    • fault passage indicationr and protection (ANSI 27/59, 46BC, 47, 50, 50N, 51, 51N, 59, 59N, 67, 67N, 81).

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