IEC 61850 MMXU Module

The IEC 61850 MMXU Module represents the Measurement (MMXU) Logical Node in IEC 61850 protocol.

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Overview

It maps the appropriate ION values to their IEC 61850 counterparts. The MMXU Logical Node provides per-phase and total current, voltage and power flows normally used for operational purposes such as power flow supervision and management, measurement displays, state estimation, etc. Only one instance of this module can exist. Because this module is specific to supporting the IEC 61850 protocol, it can be deleted if IEC 61850 is not required.

For more information about IEC 61850, please refer to the IEC 61850 and ION Technology technical note.

NOTE: This module is configured as part of the meter’s implementation of the IEC 61850 protocol. Manual creation and configuration of this module, or modification of an existing module, is an advanced feature that should only be undertaken by personnel with a thorough understanding of ION and IEC 61850 protocols, and the system in which the meter is installed.

NOTE: The registers and settings available in this module depend on the device or node you are configuring, as well as its firmware and template versions. Not all registers or settings are available on all devices or the Virtual Processor, and labels may vary.

Inputs

NOTE: If input registers are changed, the new inputs must have the same units of measure as the original input.

By default, the MMXU Module inputs are the outputs from the Power Meter module.

NOTE: Refer to the Power Meter module for detailed output register descriptions.

TotW

This register is connected to the kW tot output register on the Power Meter module. Units are kW.

TotVAr

This register is connected to the kVAR total output register on the Power Meter module. Units are kVAR.

TotVA

This register is connected to the kVA total output register on the Power Meter module. Units are kVA.

TotPF

This register is connected to the PF sign tot output register on the Power Meter module. The value can range from 0 to 100 and -100 to 0.

Hz

This register is connected to the Line Freq output register on the Power Meter module. Units are Hertz.

PPV.phsAB, PPV.phsBC, PPV.phsCA

These registers are connected to the Vll ab, Vll bc, and Vll ca output registers on the Power Meter module. Units are Volts.

PhV.phsA, PhV.phsB, PhV.phsC

These registers are connected to the Vln a, Vln b, and Vln c output registers on the Power Meter module. Units are Volts.

PhV.neut

This register is connected to the V4 output register on the Power Meter module. Units are Volts.

A.phsA, A.phsB, A.phsC

These registers are connected to the I a, I b and I c output registers on the Power Meter module. Units are Amps.

A.neut

This register is connected to the I4 output register on the Power Meter module. Units are Amps.

A.net

This register is connected to the I5 output register on the Power Meter module. Units are Amps.

W.phsA, W.phsB, W.phsC

These registers are connected to the kW a, kW b and kW c output registers on the Power Meter module. Units are kW.

VAr.phsA, VAr.phsB, VAr.phsC

These registers are connected to the kVAR a, kVAR b and kVAR c output registers on the Power Meter module. Units are kVAR.

VA.phsA, VA.phsB, VA.phsC

These registers are connected to the kVA a, kVA b and kVA c output registers on the Power Meter module. Units are kVA.

PF.phsA, PF.phsB, PF.phsC

These registers are connected to the PF sign a, PF sign b and PF sign c output register on the Power Meter module and are expressed as a numeric values from 0 to 100.

Setup registers

The MMXU Module has no setup registers.

Output registers

These registers are formatted and named according to IEC 61850 protocol standards. These registers have the same units as their corresponding inputs.

TotW.instMag, TotW.mag

These registers contain the instantaneous and deadbanded total real power, taken from the TotW input.

TotVAr.instMag, TotVAr.mag

These registers contain the instantaneous and deadbanded total reactive power, taken from the TotVAr input.

TotVA.instMag, TotVA.mag

These registers contain the instantaneous and deadbanded total apparent power, taken from the TotVA input.

TotPF.instMag, TotPF.mag

These registers contain the instantaneous and deadbanded total power factor, taken from the TotPF input.

Hz.instMag, Hz.mag

These registers contain the instantaneous and deadbanded frequency, taken from the Hz input.

PPV.phsAB.instCVal.mag, PPV.phsAB.cVal.mag, PPV.phsBC.instCVal.mag, PPV.phsBC.cVal.mag, PPV.phsCA.instCVal.mag, PPV.phsCA.cVal.mag

These registers contain the instantaneous and deadbanded RMS line-to-line voltages, taken from the PPV.phsAB, PPV.phsBC and PPV.phsCA inputs.

PhV.phsA.instCVal.mag, PhV.phsA.cVal.mag, PhV.phsB.instCVal.mag, PhV.phsB.cVal.mag, PhV.phsC.instCVal.mag, PhV.phsC.cVal.mag

These registers contain the instantaneous and deadbanded RMS line-to-neutral voltages, taken from the PhV.phsA, PhV.phsB and PhV.phsC inputs.

PhV.neut.instCVal.mag, PhV.neut.cVal.mag

These registers contain the instantaneous and deadbanded RMS neutral voltage, taken from the PhV.neut input.

A.phsA.instCVal.mag, A.phsA.cVal.mag, A.phsB.instCVal.mag, A.phsB.cVal.mag, A.phsC.instCVal.mag, A.phsC.cVal.mag

These registers contain the instantaneous and deadbanded RMS currents, taken from the A.phsA, A.phsB and A.phsC inputs.

A.neut.instCVal.mag, A.neut.cVal.mag

These registers contain the instantaneous and deadbanded RMS neutral current, taken from the A.neut input.

A.net.instCVal.mag, A.net.cVal.mag

These registers contain the instantaneous and deadbanded RMS net current, taken from the A.net input.

W.phsA.instCVal.mag, W.phsA.cVal.mag, W.phsB.instCVal.mag, W.phsB.cVal.mag, W.phsC.instCVal.mag, W.phsC.cVal.mag

These registers contain the instantaneous and deadbanded active power, taken from the W.phsA, W.phsB and W.phsC inputs.

VAr.phsA.instCVal.mag, VAr.phsA.cVal.mag, VAr.phsB.instCVal.mag, VAr.phsB.cVal.mag, VAr.phsC.instCVal.mag, VAr.phsC.cVal.mag

These registers contain the instantaneous and deadbanded reactive power, taken from the VAr.phsA, VAr.phsB and VAr.phsC inputs.

VA.phsA.instCVal.mag, VA.phsA.cVal.mag, VA.phsB.instCVal.mag, VA.phsB.cVal.mag, VA.phsC.instCVal.mag, VA.phsC.cVal.mag

These registers contain the instantaneous and deadbanded RMS apparent power, taken from the VA.phsA, VA.phsB and VA.phsC inputs.

PF.phsA.instCVal.mag, PF.phsA.cVal.mag, PF.phsB.instCVal.mag, PF.phsB.cVal.mag, PF.phsC.instCVal.mag, PF.phsC.cVal.mag

These registers contain the instantaneous and deadbanded power factor, taken from the PF.phsA, PF.phsB and PF.phsC inputs.

Event

Events produced by the module are recorded in the Event register.

Possible events and their associated priority numbers are shown in the following table.

Event priority group	Priority	Description
Reset	5	A module reset has occurred.
Setup Change	10	Input links, setup registers or labels have changed.
Information	25	not available input caused output to go not available.

The Event output register stores the following information for each ION event: time stamp, priority, cause, effect, and any values or conditions associated with the cause and effect.