ARIS C303 bay controller has a modular project-based design and is intended for monitoring and controlling equipment of one or several feeders. It offers direct input of signals from measuring CTs and VTs, input of digital signals, normalized analog signals,
digital output signals and control commands. It is used as an element of SAS.

Main functions

  • Measurement and calculation of over 80 secondary electrical parameters in a three-phase four-wire network
  • Reception of up to four IEC 61850-9-2 LE 80 streams or 256 reports per period
  • Input of digital signals24 V DC or 220 V DC /V AC
  • Processing of two-bit signals
  • Output of digital signals and control commands 24 V DC or 220 V DC/V AC
  • Input of uniform analog current and voltage signals
  • Running of custom algorithms and online interlocking algorithms
  • Data and commands interchange via digital data transfer protocols with contiguous devices (relay protection, SIPS, fault localization, fault recording systems, etc.)
  • Calculation of power quality parameters according to EN 50160:2010
  • Operational metering of electricity
  • Assignment of time stamps with an accuracy of 1 ms
  • Archiving of information on digital and analog signals
  • Keeping and presentation of event logs
  • Capability to operate as an NTP server
  • Displaying ofmimic diagrams on controller`s screen
  • Displaying of parameters of electrical network and of power quality on controller`s screen
  • Recording of oscillograms in COMTRADE format
  • Calculation of switch commutation life in accordance with the requirements of IEC 62271-100:2001, IEC 60694:1996

Basic performance data

  • Up to 1000 tags processed per 1 second
  • Processing of up to 100 algorithms
  • Built-in real-time clock and GPS/GLONASS receiver (optional)
  • Time synchronization via NTP, PPS, PTP
  • Support of PRP redundancy protocol
  • Not equipped with any fans ormoving parts
  • QNX 6.5 real-time operating system
  • Transmission of independent data sets to 10 destinations via IEC 61850-8-1 (MMS), IEC 60870-5-101/104 protocols

Number of available expansion slots in controllers

14/12 (in versions with 2 power supply units) slots for boards installation

Additional capabilities

  • Alarm signaling and self-diagnostics
  • 5,7" LCD screen
  • 12-button keypad
  • Control prohibition/authorization key
  • Capability to operate as an NTP server
  • Built-in web-interface

Power quality

  • generation of ready-to-use daily PQI reports according to EN 50160:2010
  • measuring of PQI according to IEC 61000-4-30:2008 Class S
  • Calculation of harmonics and interharmonics according to IEC 61000-4-7-2009 (IEC 61000-4-7)

I/O Modules

  • direct input of metering circuits 1/5 A, 100 V 3CT/3VT (4CT/4VT), accuracy class — 0.2
  • Direct input of metering circuits 150 A, 100 V 3CT/3VT (4CT/4VT), accuracy class — 1
  • Input of digital measurement data according to IEC 61850-9-2 (SV), accuracy class — 0.001
  • Digital input 8 24 V DC channels or 15 220 VDC/VAC channels
  • 8 digital output channels or 4 remote control targets 24 V DC or 220 V DC /V AC
  • Input of signals from detectors with a uniform analog current output (-20...+ 20 mA range) or voltage (-10...+10 V range)

Communication modules

  • 2x100-BaseTx/Fx for process bus
  • 2x100-BaseTx/Fx for station bus
  • 4xEthernet 10/100/1000 Base-Tx/Fx
  • 4xRS-232 or 8 x RS-485

Data transmission/reception protocols

  • IEC 61850-8-1 (MMS and GOOSE)
  • IEC 61850-9-2 LE (SV)
  • IEC 60870-5-101
  • IEC 60870-5-104
  • IEC 60870-5-103
  • Modbus (RTU/ASCII/TCP)
  • SPA
  • https, FTP/sFPT
  • SNMP
  • Proprietary protocols of manufacturers

Power supply

  • 120–370 V DC and 85–265 V AC
  • 18–36 VDC


  • Frame size 3U (Euromechanics)
  • 483х134х242 mm (WхHхD)

Operating temperature range


Displaying of online connection diagrams

Однолинейная схема на LCD-экране контроллера ARIS 4212

Single-line diagram displayed on
the LCD of ARIS C30x controller

ARIS C30x series controllers are equipped with LCD screens, and allow to create and display on it animated single-line mimic diagrams of connections. With the help of these diagrams it is possible to visualize the current status of switching devices, status of interlocking signals, position of keys, effect local or remote control of connection in real time, as well as send other signals via this connection. Single line mimic diagrams are presented on the ARIS C30x controller`s screen and can be accessed for user editing via a menu
in the web interface

Custom algorithms based on FBD

Пример реализации алгоритма в контроллере ARIS 4212

Example of algorithm implementation in ARIS C30x controller

ARIS C30x has built-in tools for programming the logic of operation. These tools can be used to create logic
and computational diagrams of any complexity, including diagrams of online interlocking of controls, logic
processing of parameters, auxiliary calculations using a custom algorithm.

For this purpose the software of ARIS C30x includes an runtime system for applications developed with help
of the functional block diagrams language (FBD). FBD allows a user to elaborate sophisticated procedures
consisting of various functional library units (arithmetic, trigonometric, logic control, PID controls, etc.). FBD
complies with the IEC 61131-3 standard issued by the International Electrotechnical Commission in 1992 that
defines the programming languages of logic controllers (PLC).

FBD integrates a structural programming methodology that allows a user to describe an automated process
in the most simple and understandable way. User functions allow to describe procedures and function
algorithms that are not implemented in the standard version.

Custom algorithms based on FBD are loaded into the ARIS C30x controller as an executable file, moreover,
changing the logic of algorithm inside the controller is not possible, one can only define bindings of
controller`s internal input and output signals. In addition to binding and processing of controller`s physical
signals it is possible to process quality attributes according to these signals.


Development environment for custom algorithms

Пример создания алгоритма в Soft Constructor

Example of elaboration of an algorithm in Soft

The scope of delivery includes an advanced FBD application development environment — Soft Constructor software. The interface of a system user includes a windowed mode, a graphic editor, libraries of standard algorithms. The availability of a debugger allows one to simulate an algorithm`s execution, browse statuses of variables, view progress of execution.


Fault recording

Пример осциллограммы в ARIS 4212

Example of an oscillography record
in ARIS C30x

ARIS C30x allows to save oscillography records for both analog direct input signals from CT/VT, and digital signals, implementing the functions of an emergency events recorder. The oscillography records are saved in the COMTRADE format and can be transmitted to upper levels of the system.

Система Orphus