•  Added support for OPC UA configuration.

•  Added support for copying data from the register view.

•  Added support for configuring time wait per byte after send in the Modbus gateway RTU.

Changes

•  Updated the HMI view.

•  Updated the cards in the back panel view.

•  Updated the characteristics drawing.

•  Updated error messages.

Corrections

•  Fixed an issue where timestamps were incorrect in some locales.

•  Fixed an issue where the GOOSE toolbar button was not enabled.

•  Improved general stability and performance.

Software

• Improved cybersecurity (IEC 62443-4-2 SL1).

• Added a new firmware update system.

• Added User Account Control (UAC) management.

• Added Ethernet security settings with the ability to disable Ethernet ports and unused services.

• Hardened the platform.

• Added partial update support.

• Added a new graph system.

Voltage measurement

• Added configurable voltage input thresholds (squelch limit).

Current measurement

•  Decreased the minimum measured secondary current to 5 mA (squelch limit).

Functions

•  Added line protection module.

•  Added line differential protection.

•  Added process bus.

•  Added low-voltage ride-through [27(t)].

•  Added demand measurement.

•  Added distance protection.

•  Added dynamic S-dependent mode for Underexcitation Protection (Q<; 40; UEX1).

Power factor controller

•  Added PFC "Bank Out of Service" and "Fixed Status" signals to logic signals.

•  Added Delta-Q mode for the power factor controller.

Capacitor characteristics

•  Added capacitance calculation for capacitor banks.

Differential Protection

•  Added 5th harmonic blocking release time.

•  Added 2nd harmonic blocking release time.

Voltage Regulation [90]

•  Added voltage-side selection to the voltage regulator.

•  Added a "No Difference" option for allowed tap difference in the parallel voltage regulator.

•  Modified the AVR function to use tap positions instead of steps.

Synchrocheck [25]

•  Added a "Synchronising in Progress" signal.

Synchroniser

•  Allowed U3 and U4 to be used as synchroniser voltage references.

Objects

•  Added trip circuit supervision functionality.

•  Added accumulated abrasion to object circuit breaker wear.

HMI

•  Added Traditional Chinese translations.

•  Added a fault register view to the carousel.

•  Added a communication system full reset parameter.

•  Added the "-" sign to the HMI keypad.

•  Added the "Consider local/remote switch for pushbuttons" parameter.

•  Added the option to select the required access level for function buttons on the HMI.

•  Added differential characteristics to the HMI.

Mimic

•  Added/updated default mimics for line differential, voltage regulator, and PFC models.

•  Added generating time to the mimic.

•  Added the I2> (I2/I1 relation) value to the mimic.

•  Added Voltage THD to the mimic.

•  Added PFC "Clear Counters" to the HMI.

•  Added POW2 measurements to the mimic.

Communication: IEC 61850

•  Added and improved several IEC 61850 signals.

•  Added arc sensor status and RHC start counter signals.

•  Added motor frequent-start remaining blocking time.

•  Mapped energy measurement values in kilo and mega units.

•  Added PQS and PF for the total demand function to IEC 61850 and the mimic.

•  Added and improved logical node TOLM1PTTR1.

•  Added a logical node for the TCS function.

Communication: DNP3 and IEC 103

•  Added Ind. 6-10 object status mapping to DNP3 and IEC 103.

Communication: Modbus

•  Added OBJ1...10_WDStatus and local/remote switch mapping to Modbus.

Communication: OPC UA

•  Added OPC UA support.

Communication

•  Added TRMS signals to communication.

•  Added a separate mA deadband to protocols and removed the deadband from the tap changer location.

Communication: IEC 101/104

•  Added several missing signals to IEC 101/104.

Communication: Modbus gateway

•  Added support for configuring time wait per byte after send.

Line differential protection

•  Added line differential trip signals to the “Common Trip” function.

Transformer thermal overload protection

•  Added the option to disable trip.

Programmable stages

•  Added AVR tap voltage measurements to programmable stages.

Demand measurement

•  Added demand measurement to F255S/R/V models.

Disturbance recorder

•  Added differential and bias currents, and 2nd and 5th harmonic measurements.

Phase-wise overcurrent

•  Added more test outputs and conditions.

Changes

•  Modified the AVR function to use tap positions instead of steps.

•  Changed the reactive power values to accumulate positive values in all quadrants.

•  Replaced old power stages with PQS stages on F models.

Intermittent earth fault

•  Improved intermittent earth fault operation logic.

Voltage regulation [90]

•  Improved the voltage regulator function.

•  Improved the parallel voltage regulator communication.

Communication: IEC 61850

•  Improved backward compatibility of IEC 61850 Edition 1 CID files when upgrading from older versions (DOType BCR).

•  Increased the GOOSE dataset maximum signal points to 64.

•  Improved AR1RREC1.AutoRecSt status indication.

•  Removed IEC 61850 IP port selection.

•  Interlock-check and synchrocheck are now performed only when requested by the client through the control command check bits.

Disturbance recorder

•  Improved disturbance recorder functionality.

HMI

•  Improved the HMI password selection screen when using the dark theme.

•  Allow carousel pages to be renamed.

•  Renamed push buttons to function buttons.

•  Updated the Kazakh translation.

Overvoltage protection

•  Increased the pickup setting limit to 250%.

Line differential

•  Improved line protection accuracy and communication handling.

•  Changed the line differential minimum pickup value to 10% and lowered the differential calculation threshold to 0.05 × Bias.

Software

•  Hardened the NTP configuration.

Corrections

•  Improved line protection communication.

Miscellaneous

•  Fixed event registers in several functions.

•  Fixed menu and parameter visibility issues and text descriptions.

Software

•  Fixed validator discrepancies.

•  Fixed the event buffer showing old events after roll-over.

•  Fixed serial number display in the device list.

•  Fixed matrix signals incorrectly including unavailable parameters.

•  Fixed the inability to select some objects in IEC 61850 Edition 1.

•  Fixed the communication system full reset parameter when UAC is active.

•  Fixed an empty Modbus map in files created with AQS Generator.

•  Fixed incorrect user levels after password changes.

Programmable stages

•  Renamed PGx to PSx.

Rate-of-change of frequency

•  Fixed ROCOF trip fluctuation during fault ramp.

Synchrocheck [25]

•  Fixed SYN2 and SYN3 settings being shown only on the Info tab.

•  Fixed synchrocheck functionality at maximum settings.

•  Fixed synchroniser measurements showing incorrect signals.

Thermal overload

•  Fixed T> thermal image values.

•  Fixed incorrect setting group indication in the T> fault register.

Transformer module

•  Fixed transformer load conditioning hysteresis.

Arc protection

•  Added arc light-in signals back to logic.

Excitation

•  Fixed excitation measurement side selection.

Fault register

•  Fixed the fault register not showing the latest fault.

Power system stabiliser

•  Fixed GMAG PSS ramp tracking and lead-lag filters.

Power measurements

•  Fixed mimic power measurements displaying "NaN" when only current was injected.

Disturbance recorder

•  Fixed I02 current resolution in disturbance recorder.

•  Resolved a rare issue where reading disturbance recorder files from line differential models could cause a CPU reset.

•  Fixed disturbance recorder values over 99,999.

•  Fixed the disturbance recorder not recording the IL1 channel if UL1 was not selected.

Logic

•  Fixed incorrect output from the EDGE gate.

Energy measurement

• Fixed an issue where inversion of energy values did not affect reactive energies.

Communication

• Fixed analogue output 4 × AO + 1 AI (I) card mA input CH1 and CH2 readings via communication protocol.

Communication: IEC 61850

•  Changed reactive power DmdVarh and SupVarh values to accumulate positive values in all quadrants.

•  Fixed AR1RREC OpCls status in GOOSE.

•  Fixed AR1RREC1 IEC 61850 Edition 2 test mappings.

•  Fixed GOOSE quality bits activating when set to good quality.

•  Fixed Indicator GooseDBPOS.

•  Fixed MBIO data quality in IEC 61850.

•  Fixed missing or incorrect test outputs/conditions for several functions.

•  Improved interoperability by correcting the data attribute arrangement for selected data objects.

•  Corrected Select command handling in IEC 61850 Edition 1 when configured for SBO object control mode.

Communication: IEC 104

•  Fixed fault register mappings.

HMI

•  Fixed missing translations.

•  Fixed running-hours format on the HMI.

Mimic

•  Fixed an issue where defining the number of decimals did not work with measurement bars.

2 × LC 100 MB Ethernet card

•  Fixed an issue where Revision E1 of the card might not start correctly after a cold boot by tuning the option card reset signal.

Modbus

•  Updated the Modbus map.

Differential protection

•  Fixed zero-sequence elimination calculation accuracy for vector groups YNyn6, Yyn6, Dyn7, and Dyn5.

•  Ensured parameters were retained after reboot in Manual Set mode.

Line differential

•  Fixed the "Transformer Vector Group" selection to match nameplate data when "HV Side is located with" was set to Sub Node.

•  Fixed "Object in p.u." CT scaling.

Automatic voltage regulator

•  Fixed the AVR “Measurements” section.

•  Fixed AVR tap voltage calculation and mimic units.

•  Fixed AVR transformer rated-value settings being shown when parallel mode was not used.

•  Fixed the AVR timer running during manual operation.

Non-directional overcurrent protection

• Fixed latest-fault primary current calculation to use the scaled nominal value.

Harmonic overcurrent

• Fixed "Stage operation time" and "Time remaining to trip" units.

Capacitor bank neutral unbalance protection

•  Fixed "Unbalance detected" events.

•  Fixed general event registers and force test output.

Zero-sequence recloser

• Fixed test output conditions.

Objects

• Fixed Object 1 showing condition changes when the mode was disabled.