GEK-113609A

GE

Grid Solutions

EPM 6100 Electronic

Submeter

Instruction Manual

Software Revision: 1.1

Manual P/N: 1601-0034-A2

Manual Order Code: GEK-113609A

*1601-0034-A2*

LISTED

ii

Copyright © 2016 GE Multilin Inc. All rights reserved.

EPM 6100 Electronic Submeter Instruction Manual for product revision 1.1.

The contents of this manual are the property of GE Multilin Inc. This documentation is furnished on license and may not be reproduced in whole or in part without the permission of GE Multilin. The manual is for informational use only and is subject to change without notice.

Part number: 1601-0034-A2 (January 2016)

For further assistance

For product support, contact the information and call center as follows:

GE Grid Solutions

650 Markland Street

Markham, Ontario

Canada L6C 0M1

Worldwide telephone: +1 905 927 7070

Europe/Middle East/Africa telephone: +34 94 485 88 54

North America toll-free: 1 800 547 8629

Fax: +1 905 927 5098

Worldwide e-mail: [email protected]

Europe e-mail: [email protected]

Website: http://www.gegridsolutions.com/multilin

Warranty

For products shipped as of 1 October 2013, GE warrants most of its GE manufactured products for 10 years. For warranty details including any limitations and disclaimers, see our Terms and Conditions at https://www.gegridsolutions.com/multilin/warranty.htm

For products shipped before 1 October 2013, the standard 24-month warranty applies.

Note

GENERAL SAFETY PRECAUTIONS

• Failure to observe and follow the instructions provided in the equipment manual(s) could cause irreversible damage to the equipment and could lead to property damage, personal injury and/or death.

• Before attempting to use the equipment, it is important that all danger and caution indicators are reviewed.

• If the equipment is used in a manner not specified by the manufacturer or functions abnormally, proceed with caution. Otherwise, the protection provided by the equipment may be impaired and can result in Impaired operation and injury.

• Caution: Hazardous voltages can cause shock, burns or death.

• Installation/service personnel must be familiar with general device test practices, electrical awareness and safety precautions must be followed.

• Before performing visual inspections, tests, or periodic maintenance on this device or associated circuits, isolate or disconnect all hazardous live circuits and sources of electric power.

• Failure to shut equipment off prior to removing the power connections could expose you to dangerous voltages causing injury or death.

• All recommended equipment that should be grounded and must have a reliable and un-compromised grounding path for safety purposes, protection against electromagnetic interference and proper device operation.

• Equipment grounds should be bonded together and connected to the facility’s main ground system for primary power.

• Keep all ground leads as short as possible.

• At all times, equipment ground terminal must be grounded during device operation and service.

• In addition to the safety precautions mentioned all electrical connections made must respect the applicable local jurisdiction electrical code.

• Before working on CTs, they must be short-circuited.

iii

iv

FCC

This device complies with FCC Rules Part 15 and Industry Canada RSS-210 (Rev. 7).

Operation is subject to the following two conditions:

1. This device may not cause harmful interference.

2. This device must accept any interference, including interference that may cause undesired operation of the device.

L’appareil conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisé aux deux conditions suivantes:

1. L'appareil ne doit pas produire de brouillage.

2. L'utilisateur de l'appareil doit accepter tout brouillage radiolectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

The antenna provided must not be replaced with a different type. Attaching a different antenna will void the FCC approval, and the FCC ID can no longer be considered.

This product cannot be disposed of as unsorted municipal waste in the European

Union. For proper recycling return this product to your supplier or a designated collection point. For more information go to www.recyclethis.info.

Note

Note

Note

Note

Note

Safety words and definitions

The following symbols used in this document indicate the following conditions

Indicates a hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

Indicates practices not related to personal injury.

NOTE

Indicates general information and practices, including operational information, that are not related to personal injury.

v

vi

Table of Contents

1: THREE-PHASE POWER

MEASUREMENT

THREE PHASE SYSTEM CONFIGURATIONS ........................................................................... 1-1

WYE CONNECTION .......................................................................................................................... 1-1

DELTA CONNECTION ...................................................................................................................... 1-3

BLONDEL’S THEOREM AND THREE PHASE MEASUREMENT ......................................... 1-4

POWER, ENERGY AND DEMAND ............................................................................................... 1-6

REACTIVE ENERGY AND POWER FACTOR ............................................................................. 1-9

HARMONIC DISTORTION .............................................................................................................. 1-11

POWER QUALITY .............................................................................................................................. 1-13

2: OVERVIEW AND

SPECIFICATIONS

3: MECHANICAL

INSTALLATION

HARDWARE OVERVIEW ................................................................................................................. 2-1

O

RDER

C

ODES

..................................................................................................................... 2-2

M

EASURED

V

ALUES

............................................................................................................ 2-2

U

TILITY

P

EAK

D

EMAND

....................................................................................................... 2-3

SPECIFICATIONS ............................................................................................................................... 2-3

OVERVIEW ........................................................................................................................................... 3-1

INSTALL THE BASE ........................................................................................................................... 3-1

M

OUNTING

D

IAGRAMS

....................................................................................................... 3-3

S

ECURE THE

C

OVER

............................................................................................................ 3-5

4: ELECTRICAL

INSTALLATION

5: COMMUNICATION

INSTALLATION

6: ETHERNET

CONFIGURATION

CONSIDERATIONS WHEN INSTALLING METERS ................................................................. 4-1

ELECTRICAL CONNECTIONS ........................................................................................................ 4-3

GROUND CONNECTIONS .............................................................................................................. 4-4

VOLTAGE FUSES ............................................................................................................................... 4-4

ELECTRICAL CONNECTION DIAGRAMS .................................................................................. 4-4

EPM 6100 COMMUNICATION ..................................................................................................... 5-1

I

R

DA P

ORT

(C

OM

1) ........................................................................................................... 5-1

RS485 C

OMMUNICATION

C

OM

2 (485 O

PTION

) .......................................................... 5-2

KYZ O

UTPUT

....................................................................................................................... 5-3

E

THERNET

C

ONNECTION

.................................................................................................... 5-4

METER COMMUNICATION AND PROGRAMMING OVERVIEW ....................................... 5-6

H

OW TO

C

ONNECT

............................................................................................................. 5-6

EPM 6100 D

EVICE

P

ROFILE

S

ETTINGS

.......................................................................... 5-8

INTRODUCTION ................................................................................................................................ 6-1

FACTORY DEFAULT SETTINGS .................................................................................................... 6-2

M

ODBUS

/TCP

TO

RTU B

RIDGE

S

ETUP

........................................................................... 6-2

CONFIGURE NETWORK MODULE ............................................................................................. 6-4

C

ONFIGURATION

R

EQUIREMENTS

..................................................................................... 6-4

C

ONFIGURING THE

E

THERNET

A

DAPTER

.......................................................................... 6-4

D

ETAILED

C

ONFIGURATION

P

ARAMETERS

........................................................................ 6-6

E

XAMPLE OF

M

ODIFYING

P

ARAMETERS IN

G

ROUPS

1, 6,

AND

7 ................................ 6-8

NETWORK MODULE HARDWARE INITIALIZATION ............................................................. 6-11

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL TOC–1

7: USING THE SUBMETER

INTRODUCTION ................................................................................................................................ 7-1

S

UBMETER

F

ACE

E

LEMENTS

............................................................................................... 7-1

S

UBMETER

F

ACE

B

UTTONS

................................................................................................ 7-2

USING THE FRONT PANEL ............................................................................................................ 7-2

U

NDERSTANDING

S

TARTUP AND

D

EFAULT

D

ISPLAYS

.................................................... 7-3

U

SING THE

M

AIN

M

ENU

.................................................................................................... 7-3

U

SING

R

ESET

M

ODE

........................................................................................................... 7-4

E

NTERING A

P

ASSWORD

..................................................................................................... 7-4

U

SING

C

ONFIGURATION

M

ODE

......................................................................................... 7-5

U

SING

O

PERATING

M

ODE

.................................................................................................. 7-10

% OF LOAD BAR ............................................................................................................................... 7-11

WATT-HOUR ACCURACY TESTING (VERIFICATION) ........................................................... 7-12

A: NAVIGATION MAPS

FOR THE EPM 6100

METER

INTRODUCTION ................................................................................................................................ A-1

NAVIGATION MAPS (SHEETS 1 TO 4) ........................................................................................ A-1

M

AIN

M

ENU

S

CREENS

(S

HEET

1) ..................................................................................... A-2

O

PERATING

M

ODE

S

CREENS

(S

HEET

2) ........................................................................... A-3

R

ESET

M

ODE

S

CREENS

(S

HEET

3) .................................................................................... A-4

C

ONFIGURATION

M

ODE

S

CREENS

(S

HEET

4) .................................................................. A-5

B: MODBUS MAPPING

FOR EPM 6100 METER

INTRODUCTION ................................................................................................................................ B-1

MODBUS REGISTER MAP SECTIONS ........................................................................................ B-1

DATA FORMATS ................................................................................................................................ B-2

FLOATING POINT VALUES ............................................................................................................ B-2

MODBUS REGISTER MAP .............................................................................................................. B-3

INTRODUCTION ................................................................................................................................ C-1

DNP MAPPING (DNP-1 TO DNP-2) ............................................................................................ C-1

C: DNP MAPPING FOR

EPM 6100 METER

D: DNP 3.0 PROTOCOL

ASSIGNMENTS FOR EPM

6100 METER

DNP IMPLEMENTATION ................................................................................................................. D-1

DATA LINK LAYER ............................................................................................................................. D-2

TRANSPORT LAYER .......................................................................................................................... D-2

APPLICATION LAYER ....................................................................................................................... D-3

O

BJECT AND

V

ARIATION

..................................................................................................... D-4

E: MANUAL REVISION

HISTORY

RELEASE NOTES ................................................................................................................................ E-1

TOC–2 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

GE

Grid Solutions

EPM 6100 Electronic Submeter

Chapter 1: Three-Phase Power

Measurement

Three-Phase Power Measurement

This introduction to three-phase power and power measurement is intended to provide only a brief overview of the subject. The professional meter engineer or meter technician should refer to more advanced documents such as the EEI Handbook for

Electricity Metering and the application standards for more in-depth and technical coverage of the subject.

1.1

Three Phase System Configurations

Three-phase power is most commonly used in situations where large amounts of power will be used because it is a more effective way to transmit the power and because it provides a smoother delivery of power to the end load. There are two commonly used connections for three-phase power, a wye connection or a delta connection. Each connection has several different manifestations in actual use.

When attempting to determine the type of connection in use, it is a good practice to follow the circuit back to the transformer that is serving the circuit. It is often not possible to conclusively determine the correct circuit connection simply by counting the wires in the service or checking voltages. Checking the transformer connection will provide conclusive evidence of the circuit connection and the relationships between the phase voltages and ground.

1.2

Wye Connection

The wye connection is so called because when you look at the phase relationships and the winding relationships between the phases it looks like a Y. Figure 1.1 depicts the winding relationships for a wye-connected service. In a wye service the neutral (or center point of the wye) is typically grounded. This leads to common voltages of 208/

120 and 480/277 (where the first number represents the phase-to-phase voltage and the second number represents the phase-to-ground voltage).

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 1–1

WYE CONNECTION

1–2

CHAPTER 1: THREE-PHASE POWER MEASUREMENT

V

C

Phase 3

N

Phase 2

Phase 1

V

B

V

A

Figure 1-1: Three-phase Wye Winding

The three voltages are separated by 120 o the currents are also separated by 120 o

electrically. Under balanced load conditions

. However, unbalanced loads and other conditions can cause the currents to depart from the ideal 120 o

separation. Threephase voltages and currents are usually represented with a phasor diagram. A phasor diagram for the typical connected voltages and currents is shown in Figure 1.2.

V

C

I

C

N

I

A

V

B

I

B

V

A

Figure 1-2: Phasor Diagram Showing Three-phase Voltages and Currents

The phasor diagram shows the 120 o

angular separation between the phase voltages.

The phase-to-phase voltage in a balanced three-phase wye system is 1.732 times the phase-to-neutral voltage. The center point of the wye is tied together and is typically grounded. Table 1.1 shows the common voltages used in the United States for wyeconnected systems.

Table 1.1: Common Phase Voltages on Wye Services

Phase to Ground Voltage

120 volts

277 volts

2,400 volts

7,200 volts

Phase to Phase Voltage

208 volts

480 volts

4,160 volts

12,470 volts

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 1: THREE-PHASE POWER MEASUREMENT DELTA CONNECTION

Table 1.1: Common Phase Voltages on Wye Services

Phase to Ground Voltage

7,620 volts

Phase to Phase Voltage

13,200 volts

Usually a wye-connected service will have four wires: three wires for the phases and one for the neutral. The three-phase wires connect to the three phases (as shown in

Figure 1.1). The neutral wire is typically tied to the ground or center point of the wye.

In many industrial applications the facility will be fed with a four-wire wye service but only three wires will be run to individual loads. The load is then often referred to as a delta-connected load but the service to the facility is still a wye service; it contains four wires if you trace the circuit back to its source (usually a transformer). In this type of connection the phase to ground voltage will be the phase-to-ground voltage indicated in Table 1, even though a neutral or ground wire is not physically present at the load. The transformer is the best place to determine the circuit connection type because this is a location where the voltage reference to ground can be conclusively identified.

1.3

Delta Connection

Delta-connected services may be fed with either three wires or four wires. In a threephase delta service the load windings are connected from phase-to-phase rather than from phase-to-ground. Figure 1.3 shows the physical load connections for a delta service.

V

C

Phase 2

Phase 3

V

B

Phase 1

V

A

Figure 1-3: Three-phase Delta Winding Relationship

In this example of a delta service, three wires will transmit the power to the load. In a true delta service, the phase-to-ground voltage will usually not be balanced because the ground is not at the center of the delta.

Figure 1.4 shows the phasor relationships between voltage and current on a threephase delta circuit.

In many delta services, one corner of the delta is grounded. This means the phase to ground voltage will be zero for one phase and will be full phase-to-phase voltage for the other two phases. This is done for protective purposes.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 1–3

BLONDEL’S THEOREM AND THREE PHASE MEASUREMENT CHAPTER 1: THREE-PHASE POWER MEASUREMENT

V

BC

I

C

V

CA

I

A

I

B

V

AB

Figure 1-4: Phasor Diagram, Three-Phase Voltages and Currents, Delta-Connected

Another common delta connection is the four-wire, grounded delta used for lighting loads. In this connection the center point of one winding is grounded. On a 120/240 volt, four-wire, grounded delta service the phase-to-ground voltage would be 120 volts on two phases and 208 volts on the third phase. Figure 1.5 shows the phasor diagram for the voltages in a three-phase, four-wire delta system.

V

C

V

CA

V

BC

N V

A

V

AB

V

B

Figure 1-5: Phasor Diagram Showing Three-phase Four-Wire Delta-Connected System

1.4

Blondel’s Theorem and Three Phase Measurement

In 1893 an engineer and mathematician named Andre E. Blondel set forth the first scientific basis for polyphase metering. His theorem states:

If energy is supplied to any system of conductors through N wires, the total power in the system is given by the algebraic sum of the readings of N wattmeters so arranged that each of the N wires contains one current coil, the corresponding potential coil being connected between that wire and some common point. If this common point is on one of the N wires, the measurement may be made by the use of N-1 Wattmeters.

1–4 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 1: THREE-PHASE POWER MEASUREMENT BLONDEL’S THEOREM AND THREE PHASE MEASUREMENT

The theorem may be stated more simply, in modern language:

In a system of N conductors, N-1 meter elements will measure the power or energy taken provided that all the potential coils have a common tie to the conductor in which there is no current coil.

Three-phase power measurement is accomplished by measuring the three individual phases and adding them together to obtain the total three phase value. In older analog meters, this measurement was accomplished using up to three separate elements. Each element combined the single-phase voltage and current to produce a torque on the meter disk. All three elements were arranged around the disk so that the disk was subjected to the combined torque of the three elements. As a result the disk would turn at a higher speed and register power supplied by each of the three wires.

According to Blondel's Theorem, it was possible to reduce the number of elements under certain conditions. For example, a three-phase, three-wire delta system could be correctly measured with two elements (two potential coils and two current coils) if the potential coils were connected between the three phases with one phase in common.

In a three-phase, four-wire wye system it is necessary to use three elements. Three voltage coils are connected between the three phases and the common neutral conductor. A current coil is required in each of the three phases.

In modern digital meters, Blondel's Theorem is still applied to obtain proper metering. The difference in modern meters is that the digital meter measures each phase voltage and current and calculates the single-phase power for each phase. The meter then sums the three phase powers to a single three-phase reading.

Some digital meters measure the individual phase power values one phase at a time.

This means the meter samples the voltage and current on one phase and calculates a power value. Then it samples the second phase and calculates the power for the second phase. Finally, it samples the third phase and calculates that phase power.

After sampling all three phases, the meter adds the three readings to create the equivalent three-phase power value. Using mathematical averaging techniques, this method can derive a quite accurate measurement of three-phase power.

More advanced meters actually sample all three phases of voltage and current simultaneously and calculate the individual phase and three-phase power values. The advantage of simultaneous sampling is the reduction of error introduced due to the difference in time when the samples were taken.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 1–5

POWER, ENERGY AND DEMAND CHAPTER 1: THREE-PHASE POWER MEASUREMENT

C

B

Phase B

Phase C

Node "n"

Phase A

A

N

Figure 1-6: Three-Phase Wye Load Illustrating Kirchoff’s Law and Blondel’s Theorem

Blondel's Theorem is a derivation that results from Kirchoff's Law. Kirchoff's Law states that the sum of the currents into a node is zero. Another way of stating the same thing is that the current into a node (connection point) must equal the current out of the node. The law can be applied to measuring three-phase loads. Figure 1.6 shows a typical connection of a three-phase load applied to a three-phase, four-wire service.

Kirchoff's Law holds that the sum of currents A, B, C and N must equal zero or that the sum of currents into Node "n" must equal zero.

If we measure the currents in wires A, B and C, we then know the current in wire N by

Kirchoff's Law and it is not necessary to measure it. This fact leads us to the conclusion of Blondel's Theorem- that we only need to measure the power in three of the four wires if they are connected by a common node. In the circuit of Figure 1.6 we must measure the power flow in three wires. This will require three voltage coils and three current coils (a three-element meter). Similar figures and conclusions could be reached for other circuit configurations involving Delta-connected loads.

1.5

Power, Energy and Demand

It is quite common to exchange power, energy and demand without differentiating between the three. Because this practice can lead to confusion, the differences between these three measurements will be discussed.

Power is an instantaneous reading. The power reading provided by a meter is the present flow of watts. Power is measured immediately just like current. In many digital meters, the power value is actually measured and calculated over a one second interval because it takes some amount of time to calculate the RMS values of voltage and current. But this time interval is kept small to preserve the instantaneous nature of power.

Energy is always based on some time increment; it is the integration of power over a defined time increment. Energy is an important value because almost all electric bills are based, in part, on the amount of energy used.

1–6 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 1: THREE-PHASE POWER MEASUREMENT POWER, ENERGY AND DEMAND

Typically, electrical energy is measured in units of kilowatt-hours (kWh). A kilowatthour represents a constant load of one thousand watts (one kilowatt) for one hour.

Stated another way, if the power delivered (instantaneous watts) is measured as 1,000 watts and the load was served for a one hour time interval then the load would have absorbed one kilowatt-hour of energy. A different load may have a constant power requirement of 4,000 watts. If the load were served for one hour it would absorb four kWh. If the load were served for 15 minutes it would absorb ¼ of that total or one kWh.

Figure 1.7 shows a graph of power and the resulting energy that would be transmitted as a result of the illustrated power values. For this illustration, it is assumed that the power level is held constant for each minute when a measurement is taken. Each bar in the graph will represent the power load for the one-minute increment of time. In real life the power value moves almost constantly.

The data from Figure 1.7 is reproduced in Table 1.2 to illustrate the calculation of energy. Since the time increment of the measurement is one minute and since we specified that the load is constant over that minute, we can convert the power reading to an equivalent consumed energy reading by multiplying the power reading times 1/60 (converting the time base from minutes to hours).

60

50

40

30

80

70

20

10

0

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Time (minutes)

Figure 1-7: Power Use over Time

Table 1.2: Power and Energy Relationship over Time

Time Interval

(minute)

1

4

5

2

3

6

Power (kW)

30

50

40

55

60

60

Energy (kWh)

0.50

0.83

0.67

0.92

1.00

1.00

Accumulated Energy

(kWh)

0.50

1.33

2.00

2.92

3.92

4.92

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 1–7

POWER, ENERGY AND DEMAND CHAPTER 1: THREE-PHASE POWER MEASUREMENT

Table 1.2: Power and Energy Relationship over Time

Time Interval

(minute)

7

10

11

8

9

12

13

14

15

Power (kW)

70

70

60

70

80

50

50

70

80

Energy (kWh)

1.17

1.17

1.00

1.17

1.33

0.83

0.83

1.17

1.33

Accumulated Energy

(kWh)

6.09

7.26

8.26

9.43

10.76

12.42

12.42

13.59

14.92

As in Table 1.2, the accumulated energy for the power load profile of Figure 1.7 is

14.92 kWh.

Demand is also a time-based value. The demand is the average rate of energy use over time. The actual label for demand is kilowatt-hours/hour but this is normally reduced to kilowatts. This makes it easy to confuse demand with power, but demand is not an instantaneous value. To calculate demand it is necessary to accumulate the energy readings (as illustrated in Figure 1.7) and adjust the energy reading to an hourly value that constitutes the demand.

In the example, the accumulated energy is 14.92 kWh. But this measurement was made over a 15-minute interval. To convert the reading to a demand value, it must be normalized to a 60-minute interval. If the pattern were repeated for an additional three 15-minute intervals the total energy would be four times the measured value or

59.68 kWh. The same process is applied to calculate the 15-minute demand value.

The demand value associated with the example load is 59.68 kWh/hr or 59.68 kWd.

Note that the peak instantaneous value of power is 80 kW, significantly more than the demand value.

Figure 1.8 shows another example of energy and demand. In this case, each bar represents the energy consumed in a 15-minute interval. The energy use in each interval typically falls between 50 and 70 kWh. However, during two intervals the energy rises sharply and peaks at 100 kWh in interval number 7. This peak of usage will result in setting a high demand reading. For each interval shown the demand value would be four times the indicated energy reading. So interval 1 would have an associated demand of 240 kWh/hr. Interval 7 will have a demand value of 400 kWh/ hr. In the data shown, this is the peak demand value and would be the number that would set the demand charge on the utility bill.

1–8 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 1: THREE-PHASE POWER MEASUREMENT REACTIVE ENERGY AND POWER FACTOR

100

80

60

40

20

0

1 2 3 4 5 6

Intervals (15 mins.)

7 8

Figure 1-8: Energy Use and Demand

As can be seen from this example, it is important to recognize the relationships between power, energy and demand in order to control loads effectively or to monitor use correctly.

1.6

Reactive Energy and Power Factor

The real power and energy measurements discussed in the previous section relate to the quantities that are most used in electrical systems. But it is often not sufficient to only measure real power and energy. Reactive power is a critical component of the total power picture because almost all real-life applications have an impact on reactive power. Reactive power and power factor concepts relate to both load and generation applications. However, this discussion will be limited to analysis of reactive power and power factor as they relate to loads. To simplify the discussion, generation will not be considered.

Real power (and energy) is the component of power that is the combination of the voltage and the value of corresponding current that is directly in phase with the voltage. However, in actual practice the total current is almost never in phase with the voltage. Since the current is not in phase with the voltage, it is necessary to consider both the inphase component and the component that is at quadrature (angularly rotated 90o or perpendicular) to the voltage. Figure 1.9 shows a single-phase voltage and current and breaks the current into its in-phase and quadrature components.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 1–9

REACTIVE ENERGY AND POWER FACTOR CHAPTER 1: THREE-PHASE POWER MEASUREMENT

I

R

V

0

I

X

I

Figure 1-9: Voltage and Complex Current

The voltage (V) and the total current (I) can be combined to calculate the apparent power or VA. The voltage and the in-phase current (IR) are combined to produce the real power or watts. The voltage and the quadrature current (IX) are combined to calculate the reactive power.

The quadrature current may be lagging the voltage (as shown in Figure 1.9) or it may lead the voltage. When the quadrature current lags the voltage the load is requiring both real power (watts) and reactive power (VARs). When the quadrature current leads the voltage the load is requiring real power (watts) but is delivering reactive power

(VARs) back into the system; that is VARs are flowing in the opposite direction of the real power flow.

Reactive power (VARs) is required in all power systems. Any equipment that uses magnetization to operate requires VARs. Usually the magnitude of VARs is relatively low compared to the real power quantities. Utilities have an interest in maintaining

VAR requirements at the customer to a low value in order to maximize the return on plant invested to deliver energy. When lines are carrying VARs, they cannot carry as many watts. So keeping the VAR content low allows a line to carry its full capacity of watts. In order to encourage customers to keep VAR requirements low, some utilities impose a penalty if the VAR content of the load rises above a specified value.

A common method of measuring reactive power requirements is power factor. Power factor can be defined in two different ways. The more common method of calculating power factor is the ratio of the real power to the apparent power. This relationship is expressed in the following formula:

Total PF = real power / apparent power = watts/VA

This formula calculates a power factor quantity known as Total Power Factor. It is called Total PF because it is based on the ratios of the power delivered. The delivered power quantities will include the impacts of any existing harmonic content. If the voltage or current includes high levels of harmonic distortion the power values will be affected. By calculating power factor from the power values, the power factor will include the impact of harmonic distortion. In many cases this is the preferred method of calculation because the entire impact of the actual voltage and current are included.

1–10 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 1: THREE-PHASE POWER MEASUREMENT HARMONIC DISTORTION

A second type of power factor is Displacement Power Factor. Displacement PF is based on the angular relationship between the voltage and current. Displacement power factor does not consider the magnitudes of voltage, current or power. It is solely based on the phase angle differences. As a result, it does not include the impact of harmonic distortion. Displacement power factor is calculated using the following equation:

Displacement PF = cos

θ where q is the angle between the voltage and the current (see Fig. 1.9).

In applications where the voltage and current are not distorted, the Total Power

Factor will equal the Displacement Power Factor. But if harmonic distortion is present, the two power factors will not be equal.

1.7

Harmonic Distortion

Harmonic distortion is primarily the result of high concentrations of non-linear loads.

Devices such as computer power supplies, variable speed drives and fluorescent light ballasts make current demands that do not match the sinusoidal waveform of AC electricity. As a result, the current waveform feeding these loads is periodic but not sinusoidal. Figure 1.10 shows a normal, sinusoidal current waveform. This example has no distortion.

1000

500

0

– 500

Time

– 1000

Figure 1-10: Nondistorted Current Waveform

Figure 1.11 shows a current waveform with a slight amount of harmonic distortion.

The waveform is still periodic and is fluctuating at the normal 60 Hz frequency.

However, the waveform is not a smooth sinusoidal form as seen in Figure 1.10.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 1–11

HARMONIC DISTORTION CHAPTER 1: THREE-PHASE POWER MEASUREMENT

1500

1000

500

0

–500 a

2a t

–1000

–1500

Figure 1-11: Distorted Current Waveform

The distortion observed in Figure 1.11 can be modeled as the sum of several sinusoidal waveforms of frequencies that are multiples of the fundamental 60 Hz frequency. This modeling is performed by mathematically disassembling the distorted waveform into a collection of higher frequency waveforms.

These higher frequency waveforms are referred to as harmonics. Figure 1.12 shows the content of the harmonic frequencies that make up the distortion portion of the waveform in Figure 1.11.

1–12

1000

500

0

– 500

Time

3rd harmonic

5th harmonic

7th harmonic

Total fundamental

Figure 1-12: Waveforms of the Harmonics

The waveforms shown in Figure 1.12 are not smoothed but do provide an indication of the impact of combining multiple harmonic frequencies together.

When harmonics are present it is important to remember that these quantities are operating at higher frequencies. Therefore, they do not always respond in the same manner as 60 Hz values.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 1: THREE-PHASE POWER MEASUREMENT POWER QUALITY

Inductive and capacitive impedance are present in all power systems. We are accustomed to thinking about these impedances as they perform at 60 Hz. However, these impedances are subject to frequency variation.

XL = jwL and

XC = 1/jwC

At 60 Hz, w = 377; but at 300 Hz (5th harmonic) w = 1,885. As frequency changes impedance changes and system impedance characteristics that are normal at 60 Hz may behave entirely differently in the presence of higher order harmonic waveforms.

Traditionally, the most common harmonics have been the low order, odd frequencies, such as the 3rd, 5th, 7th, and 9th. However newer, non-linear loads are introducing significant quantities of higher order harmonics.

Since much voltage monitoring and almost all current monitoring is performed using instrument transformers, the higher order harmonics are often not visible. Instrument transformers are designed to pass 60 Hz quantities with high accuracy. These devices, when designed for accuracy at low frequency, do not pass high frequencies with high accuracy; at frequencies above about 1200 Hz they pass almost no information. So when instrument transformers are used, they effectively filter out higher frequency harmonic distortion making it impossible to see.

However, when monitors can be connected directly to the measured circuit (such as direct connection to a 480 volt bus) the user may often see higher order harmonic distortion. An important rule in any harmonics study is to evaluate the type of equipment and connections before drawing a conclusion. Not being able to see harmonic distortion is not the same as not having harmonic distortion.

It is common in advanced meters to perform a function commonly referred to as waveform capture. Waveform capture is the ability of a meter to capture a present picture of the voltage or current waveform for viewing and harmonic analysis.

Typically a waveform capture will be one or two cycles in duration and can be viewed as the actual waveform, as a spectral view of the harmonic content, or a tabular view showing the magnitude and phase shift of each harmonic value. Data collected with waveform capture is typically not saved to memory. Waveform capture is a real-time data collection event.

Waveform capture should not be confused with waveform recording that is used to record multiple cycles of all voltage and current waveforms in response to a transient condition.

1.8

Power Quality

Power quality can mean several different things. The terms “power quality” and

“power quality problem” have been applied to all types of conditions. A simple definition of “power quality problem” is any voltage, current or frequency deviation that results in mis-operation or failure of customer equipment or systems. The causes of power quality problems vary widely and may originate in the customer equipment, in an adjacent customer facility or with the utility.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 1–13

POWER QUALITY CHAPTER 1: THREE-PHASE POWER MEASUREMENT

In his book Power Quality Primer, Barry Kennedy provided information on different types of power quality problems. Some of that information is summarized in Table 1.3.

Cause

Impulse transient

Table 1.3: Typical Power Quality Problems and Sources

Oscillatory transient with decay

Sag/swell

Disturbance Type

Transient voltage disturbance, sub-cycle duration

Transient voltage, sub-cycle duration

Source

Lightning

Electrostatic discharge

Load switching

Capacitor switching

Line/cable switching

Capacitor switching

Load switching

Remote system faults

Interruptions

RMS voltage, multiple cycle duration

RMS voltage, multiple seconds or longer duration

Under voltage/over voltage

Voltage flicker

Harmonic distortion

RMS voltage, steady state, multiple seconds or longer duration

RMS voltage, steady state, repetitive condition

Steady state current or voltage, long-term duration

System protection

Circuit breakers

Fuses

Maintenance

Motor starting

Load variations

Load dropping

Intermittent loads

Motor starting

Arc furnaces

Non-linear loads

System resonance

It is often assumed that power quality problems originate with the utility. While it is true that power quality problems can originate with the utility system, many problems originate with customer equipment. Customer-caused problems may manifest themselves inside the customer location or they may be transported by the utility system to another adjacent customer. Often, equipment that is sensitive to power quality problems may in fact also be the cause of the problem.

If a power quality problem is suspected, it is generally wise to consult a power quality professional for assistance in defining the cause and possible solutions to the problem.

1–14 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

GE

Grid Solutions

EPM 6100 Electronic Submeter

Chapter 2: Overview and

Specifications

Overview and Specifications

2.1

Hardware Overview

The EPM 6100 multifunction meter is designed to measure revenue grade electrical energy usage and communicate that information via various communication media. The unit supports RS485, RJ-45 Ethernet or IEEE 802.11 Wi-Fi Ethernet connections. This allows the unit to be placed anywhere within a complex and still communicate quickly and easily back to central software. The unit also has a front IrDA port that can be read and configured with an IrDA-equipped device, such as a laptop PC.

The unit is designed with advanced measurement capabilities, allowing it to achieve high performance accuracy. The EPM 6100 Meter is specified as a 0.2% class energy meter for billing applications. To verify the submeter’s performance and calibration, power providers use field test standards to ensure that the unit’s energy measurements are correct. The

EPM 6100 Meter is a traceable revenue meter and contains a utility grade test pulse to verify rated accuracy. UL 61010-1 does not address performance criteria for revenue generating watt-hour meters for use in metering of utilities and/or communicating directly with utilities, or use within a substation. Use in revenue metering, communicating with utilities, and use in substations was verified according to the ANSI and IEC standards listed in the Compliance Section (2.3).

EPM 6100 Meter Features detailed in this manual are:

• 0.2% Class Revenue Certifiable Energy and Demand Submeter

• Meets ANSI C12.20 (0.2%) and IEC 62053-22 (Accuracy Class 0.2%)

• Multifunction Measurement including Voltage, Current, Power, Frequency, Energy, etc.

• Power Quality Measurements (%THD and Alarm Limits)

• 3 Line 0.56” Bright Red LED Display

• Percentage of Load Bar for Analog Meter Perception

• Modbus RTU (Over serial) and Modbus TCP (Over Ethernet)

• Serial RS485 Communication

• Ethernet and Wireless Ethernet (Wi-Fi)

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 2–1

HARDWARE OVERVIEW CHAPTER 2: OVERVIEW AND SPECIFICATIONS

• Easy to Use Faceplate Programming

• IrDA Port for laptop PC Remote Read

• Direct Interface with Most Building Management Systems

The unit uses standard 5 or 1 Amp CTs (either split or donut). It surface mounts to any wall and is easily programmed in minutes. The unit is designed specifically for easy installation and advanced communication.

2.1.1

Order Codes

Table 2.1: EPM 6100 Order Codes

Base Unit

System

Frequency

Current Input

THD

Power Supply

PL6100 – * – * – * – HI – *

PL6100 | | |

Communications Option

5

6 |

|

5A

1A |

|

|

|

0

THD

HI

|

EPM 6100

|

50 Hz AC frequency system

|

60 Hz AC frequency system

|

5 Amps

|

1 Amp

|

Default software with energy counters

|

THD and limit alarms

|

90 to 400 V AC / 100 to 370 V DC

S

Serial RS485

W

Wireless or LAN-based Ethernet

2.1.2

Measured Values

The EPM 6100 meter provides the following Measured Values all in Real Time and some additionally as Avg, Max and Min values.

Table 2.2: EPM 6100 Meter Measured Values

Measured Values

Voltage L-N

Voltage L-L

Current per Phase

Current Neutral

Watts

VAR

VA

PF

+Watt-Hours

-Watt-Hours

Watt-Hours Net

+VAR-Hours X

X

X

X

X

X

X

Real Time

X

X

X

X

X

Avg

X

X

X

X

X

X

X

X

X

Max

X

X

X

Min

X

X

X

X

X

X

X

2–2 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 2: OVERVIEW AND SPECIFICATIONS SPECIFICATIONS

Measured Values

-VAR-Hours

VAR-Hours Net

VA-Hours

Frequency

%THD**

Voltage Angles

Current Angles

% of Load Bar

Table 2.2: EPM 6100 Meter Measured Values

Real Time

X

X

X

X

X

X

X

X

Avg Max

X

X

Min

X

X

** The EPM 6100 meter measures harmonics up to the 7th order for Current and up to the

3rd order for Voltage.

2.1.3

Utility Peak Demand

The EPM 6100 meter provides user-configured Block (Fixed) Window or Rolling Window

Demand. This feature allows you to set up a Customized Demand Profile. Block Window

Demand is demand used over a user-configured demand period (usually 5, 15 or 30 minutes). Rolling Window Demand is a fixed window demand that moves for a userspecified subinterval period.

For example, you can configure a 15-minute Demand using 3 subintervals and providing a new demand reading every 5 minutes, based on the last 15 minutes.

Utility Demand Features can be used to calculate kW, kVAR, kVA and PF readings. All other parameters offer Max and Min capability over the user-selectable averaging period.

Voltage provides an Instantaneous Max and Min reading which displays the highest surge and lowest sag seen by the meter

2.2

Specifications

POWER SUPPLY

Range: ............................................... Universal, (90 to 400) VAC @50/60Hz or (100 to 370) VDC

Power Consumption: .................. 16 VA Maximum

VOLTAGE INPUTS (MEASUREMENT CATEGORY III)

Range: ............................................... Universal, Autoranging up to 416 VAC L-N, 721 VAC L-L

Supported hookups: ................... 3 Element Wye, 2.5 Element Wye

2 Element Delta, 4 Wire Delta

Input Impedance: ........................ 1M Ohm/Phase

Burden: ............................................. 0.36VA/Phase Max at 600V, 0.0144VA/Phase at 120V

Pickup Voltage: ............................. 10 VAC

Connection: .................................... Screw terminal - #6 -32 screws(Figure 4.1)

Input Wire Gauge: ....................... AWG#16 - 26

Transient Withstand: .................. Meets IEEE C37.90.1 (Surge Withstand Capability)

Reading: ........................................... Programmable Full Scale to any PT Ratio

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 2–3

SPECIFICATIONS CHAPTER 2: OVERVIEW AND SPECIFICATIONS

CURRENT INPUTS

Class 10: ............................................5Amp (Nominal), 10 Amp Maximum

Class 2: ..............................................1Amp (Nominal), 2 Amp Secondary

Burden: ..............................................0.005VA Per Phase Max at 11 Amps

Pickup Current: ..............................0.1% of Nominal

Connections: ...................................Screw terminal - #6-32 screws (Figure 4.1)

Fault Withstand: ............................100A/10sec. at 23°C

Reading: ............................................Programmable Full Scale to any CT Ratio

ISOLATION

All Inputs and Outputs are galvanically isolated and tested to 2500 VAC

ENVIRONMENTAL RATING

Storage: .............................................-20 to +60°C

Operating: ........................................-20 to +60°C

Humidity: ..........................................to 95% RH Non-condensing

Faceplate Rating: .........................NEMA1 (Indoor Use)

MEASUREMENT METHODS

Voltage, Current: ...........................True RMS

Power: ................................................Sampling at 400+ samples per cycle on all channels measured readings simultaneously

Harmonic %THD: ..........................% of Total Harmonic Distortion

A/D Conversion: ............................6 Simultaneous 24 bit Analog to Digital Converters

UPDATE RATE

Watts, VAR and VA: ......................Every six cycles. For example: 100 milliseconds (Ten times per second)

@ 60 Hz

All other parameters: ..................Every 60 cycles or 1 second

COMMUNICATION FORMAT

RS485

IrDA Port through Face Plate

Protocols: ..........................................Modbus RTU, Modbus ASCII, DNP 3.0, Modbus TCP (Ethernet)

Com Port Baud Rate: ..................9600 to 57,600 b/s

Com Port Address: .......................001-247

Data Format: ..................................8 Bit, No Parity

WIRELESS ETHERNET (OPTIONAL)

802.11b Wireless or 10/100BaseT Ethernet...........WiFi or RJ45 Connection

Wireless Security ...........................64 or 128 bit WEP; WPA; or WPA2

Modbus TCP Protocol

MECHANICAL PARAMETERS

Dimensions: .....................................H7.9 x W7.6 x D3.2 inches, (H200.7 x W193.0 x D81.3 mm)

Weight: ..............................................4 pounds (1.81 Kg)

KYZ/RS485 PORT SPECIFICATIONS

RS485 Transceiver; meets or exceeds EIA/TIA-485 Standard:

Type: ....................................................Two-wire, half duplex

Min. Input Impedance: ................96kΩ

Max. Output Current: ...................±60mA

2–4 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 2: OVERVIEW AND SPECIFICATIONS SPECIFICATIONS

WH PULSE

KYZ output contacts (and infrared LED light pulses through face plate; see Section 7.4 for

Kh values):

Pulse Width:..................................... 40ms

Full Scale Frequency: .................. ~6Hz

Contact type:................................... Solid State – SPDT (NO – C – NC)

Relay type:........................................ Solid state

Peak switching voltage:............. DC ±350V

Continuous load current:........... 120mA

Peak load current: ........................ 350mA for 10ms

On resistance, max.: .................... 35Ω

Leakage current: ........................... 1µ[email protected]

Isolation:............................................ AC 3750V

Reset State:...................................... (NC - C) Closed; (NO - C) Open

Infrared LED:

Peak Spectral Wavelength:...... 940nm

Reset State:...................................... Off

Figure 2-1: Internal Schematic

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 2–5

SPECIFICATIONS CHAPTER 2: OVERVIEW AND SPECIFICATIONS

Figure 2-2: Output Timing

2–6 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 2: OVERVIEW AND SPECIFICATIONS SPECIFICATIONS

COMPLIANCE

Test

Electrostatic Discharge

RF immunity

Fast Transient Disturbance

Surge Immunity

Conducted RF Immunity

Radiated & Conducted Emissions

Power magnetic frequency

Voltage Dip & interruption

Reference Standard

EN/IEC61000-4-2

EN/IEC61000-4-3

EN/IEC61000-4-4

EN/IEC61000-4-5

EN/IEC61000-4-6

EN/IEC61000-6-4/CISPR 11

EN/IEC61000-4-8

EN/IEC61000-4-11

Level/Class

Level 3

10V/m

Level 3

Level 3

Level 3

Class A

Level 4

0, 40, 70, 80% dips, 250/300 cycle interrupts

APPROVALS

CE compliance

North America

ISO

Applicable Council Directive

Low voltage directive

EMC Directive

R&TTE Directive cULus Listed

Manufactured under a registered quality program

According to:

EN/IEC61010-1

EN61000-6-2

EN61000-6-4

EN300 328

UL61010-1 (PICQ)

C22.2.No 61010-1 (PICQ7)

File e200431

ISO9001

METER ACCURACY BY MEASURED PARAMETERS

Parameter

Voltage L-N [V]

Accuracy

0.1% of reading

2

Voltage L-L [V]

Current Phase [A]

0.1% of reading

0.1% of reading

1

Current Neutral (calculated) [A] 2.0% of Full Scale

1

Active Power Total [W] 0.2% of reading

1,2

Active Energy Total [Wh]

Reactive Power Total [VAR]

0.2% of reading

1,2

0.2% of reading

1,2

Reactive Energy Total [VARh]

Apparent Power Total [VA]

0.2% of reading

1,2

0.2% of reading

1,2

Accuracy Input Range

(69 to 480)V

(120 to 600)V

(0.15 to 5)A

(0.15 to 5)A @ (45 to 65)Hz

(0.15 to 5)A @ (69 to 480)V @ +/- (0.5 to 1) lag/lead PF

(0.15 to 5)A @ (69 to 480)V @ +/- (0.5 to 1) lag/lead PF

(0.15 to 5)A @ (69 to 480)V @ +/- (0 to 0.8) lag/lead PF

(0.15 to 5)A @ (69 to 480)V @ +/- (0 to 0.8) lag/lead PF

(0.15 to 5)A @ (69 to 480)V @ +/- (0.5 to 1) lag/lead PF

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 2–7

SPECIFICATIONS CHAPTER 2: OVERVIEW AND SPECIFICATIONS

Parameter

Apparent Energy Total [VAh]

Power Factor

Frequency

Total Harmonic Distortion (%)

Load Bar

Accuracy

0.2% of reading

1,2

0.2% of reading

1,2

+/- 0.01Hz

5.0%

1

+/- 1 segment

Accuracy Input Range

(0.15 to 5)A @ (69 to 480)V @ +/- (0.5 to 1) lag/lead PF

(0.15 to 5)A @ (69 to 480)V @ +/- (0.5 to 1) lag/lead PF

(45 to 65)Hz

(0.5 to 10)A or (69 to 480)V, measurement range (1 to 99.99)%

(0.005 to 6)A

1

For 2.5 element programmed units, degrade accuracy by an additional 0.5% of

reading:

• For 1A (Class 2) Nominal, degrade accuracy by an additional 0.5% of reading.

• For 1A (Class 2) Nominal, the input current range for Accuracy specification is 20% of the values listed in the table.

2

For unbalanced voltage inputs where at least one crosses the 150V auto-scale

threshold (for example, 120V/120V/208V system), degrade accuracy by additional

0.4%.

2–8 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

GE

Grid Solutions

EPM 6100 Electronic Submeter

Chapter 3: Mechanical Installation

Mechanical Installation

3.1

Overview

• The EPM 6100 meter can be installed on any wall. The various models use the same installation. See Chapter 4 for wiring diagrams.

• Mount the meter in a dry location, which is free from dirt and corrosive substances.

Recommended Tools for EPM 6100 Installation:

• #2 Phillips screwdriver

• Wire cutters

3.2

Install the Base

1.

Determine where you want to install the submeter.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 3–1

INSTALL THE BASE CHAPTER 3: MECHANICAL INSTALLATION

2.

Then, with the submeter power off, open the top of the submeter. Use the Front Cover

Support to keep the cover open as you perform the installation..

Front cover support

Note

Note

3–2

Figure 3-1: EPM 6100 Meter Opened

Remove the antenna before opening the unit.

Only use the front cover support if you are able to open the front cover to the extent that you can fit the front cover support into its base. DO NOT rest the front cover support on the inside of the meter, even for a short time - by doing so, you may damage components on the board assembly.

3.

Find the 4 Installation Slots and insert screws through each slot into the wall or panel.

4.

Fasten securely.

DO NOT overtighten.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 3: MECHANICAL INSTALLATION

3.2.1

Mounting Diagrams

INSTALL THE BASE

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

Figure 3-2: Mounting Dimensions

3–3

INSTALL THE BASE CHAPTER 3: MECHANICAL INSTALLATION

12"

30. cm

Figure 3-3: Open Cover Dimensions

3–4 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 3: MECHANICAL INSTALLATION INSTALL THE BASE

3.2.2

Secure the Cover

1.

Close the cover, making sure that power and communications wires exit the submeter through the openings at the base.

Note

Figure 3-4: EPM 6100 Meter Closed

To avoid damaging components on the board assembly, make sure the front cover support is in the upright position before closing the front cover.

2.

Using the 3 enclosed screws, secure the cover to the base in three places.

Do not overtighten (you may damage the cover).

The unit can be sealed after the front cover is closed. To seal the unit, thread the seal tag through the housing located between the bottom access holes.

3.

Reattach the antenna, if appropriate.

Recommended Tools for EPM 6100 Meter Installation: #2 Phillips screwdriver and wire cutters.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 3–5

INSTALL THE BASE CHAPTER 3: MECHANICAL INSTALLATION

3–6 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

GE

Grid Solutions

EPM 6100 Electronic Submeter

Chapter 4: Electrical Installation

Electrical Installation

4.1

Considerations When Installing Meters

POTENTIAL ELECTRICAL EXPOSURE - The EPM 6100 must be installed in an electrical

enclosure where any access to live electrical wiring is restricted only to authorized service personnel.

• Installation of the EPM 6100 meter must be performed by only qualified personnel who follow standard safety precautions during all procedures. Those personnel should have appropriate training and experience with high voltage devices.

Appropriate safety gloves, safety glasses and protective clothing are recommended.

• During normal operation of the EPM 6100 meter, dangerous voltages flow through many parts of the meter, including: Terminals and any connected CTs (Current

Transformers) and PTs (Potential Transformers), all I/O Modules (Inputs and

Outputs) and their circuits. All Primary and Secondary circuits can, at times, produce lethal voltages and currents. Avoid contact with any current-carrying surfaces.

• Before performing ANY work on the meter, make sure the meter is powered down and all connected circuits are de-energized.

• Do not use the meter or any I/O Output Device for primary protection or in an energy-limiting capacity. The meter can only be used as secondary protection.

• Do not use the meter for applications where failure of the meter may cause harm or death. Do not use the meter for any application where there may be a risk of fire.

• All meter terminals should be inaccessible after installation.

• Do not apply more than the maximum voltage the meter or any attached device can withstand. Refer to meter and/or device labels and to the Specifications for all devices before applying voltages. Do not HIPOT/Dielectric test any Outputs, Inputs or Communications terminals.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 4–1

CONSIDERATIONS WHEN INSTALLING METERS

Note

Note

CHAPTER 4: ELECTRICAL INSTALLATION

• GE requires the use of Fuses for voltage leads and power supply and Shorting Blocks to prevent hazardous voltage conditions or damage to CTs, if the meter needs to be removed from service. CT grounding is optional, but recommended.

The current inputs are only to be connected to external current transformers provided by the installer. The CT's shall be Listed or Approved and rated for the current of the meter used.

If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

There is no required preventive maintenance or inspection necessary for safety.

However, any repair or maintenance should be performed by the factory.

DISCONNECT DEVICE: A switch or circuit-breaker shall be included in the end-use equipment or building installation. The switch shall be in close proximity to the equipment and within easy reach of the operator. The switch shall be marked as the

disconnecting device for the equipment.

4–2 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 4: ELECTRICAL INSTALLATION ELECTRICAL CONNECTIONS

4.2

Electrical Connections

All wiring for the EPM 6100 meter is done through the front of the unit (lifting the cover with the power to the unit OFF) so that the unit can be surface mounted. Connecting cables exit the unit via two openings in the base plate. The enclosure is intended for use with flexible conduit and non-metallic fittings.

Note

DO NOT OVERTORQUE

SCREWS

Do not over-torque screws.

Figure 4-1: Submeter Connections

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 4–3

GROUND CONNECTIONS CHAPTER 4: ELECTRICAL INSTALLATION

4.3

Ground Connections

The meter’s Ground Terminal (PE) should be connected directly to the installation’s protective earth ground.

4.4

Voltage Fuses

GE recommends the use of fuses on each of the sense voltages and on the control power, even though the wiring diagrams in this chapter do not show them.

• Use a 0.1 Amp fuse on each voltage input.

• Use a 3 Amp fuse on the power supply.

4.5

Electrical Connection Diagrams

Choose the diagram that best suits your application. Make sure the CT polarity is correct.

1.

Three Phase, Four-Wire System Wye with Direct Voltage, 3 Element

1a. Dual Phase Hookup

1b. Single Phase Hookup

2.

Three Phase, Four-Wire System Wye with Direct Voltage, 2.5 Element

3.

Three-Phase, Four-Wire Wye with PTs, 3 Element

4.

Three-Phase, Four-Wire Wye with PTs, 2.5 Element

5.

Three-Phase, Three-Wire Delta with Direct Voltage (No PTs, 2 CTs)

6.

Three-Phase, Three-Wire Delta with Direct Voltage (No PTs, 3 CTs)

7.

Three-Phase, Three-Wire Delta with 2 PTs, 2 CTs

8.

Three-Phase, Three-Wire Delta with 2 PTs, 3 CTs

9.

Current Only Measurement (Three Phase)

10. Current Only Measurement (Dual Phase)

11. Current Only Measurement (Single Phase)

4–4 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 4: ELECTRICAL INSTALLATION

1. Service: WYE, 4-Wire with No PTs, 3 CTs

N C

LINE

B

A

ELECTRICAL CONNECTION DIAGRAMS

Electronic Circuits

CT

Shorting

Block

Earth Ground

Ia+ IaIb+ IbIc+ Ic-

CN2

CN1

Va Vb Vc Vref L1 L2 PE

FUSES

3 x 0.1A

Power

Supply

Connection

N C B

LOAD

A

Select: “3 EL WYE” (3 Element Wye) in Meter Programming setup.

C

A

B

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 4–5

ELECTRICAL CONNECTION DIAGRAMS

1a. Dual Phase Hookup

N C

LINE

B

A

CHAPTER 4: ELECTRICAL INSTALLATION

Electronic Circuits

CT

Shorting

Block

Earth Ground

Ia+ IaIb+ IbIc+ Ic-

CN2

CN1

Va Vb Vc Vref L1 L2 PE

FUSES

2x 0.1A

Power

Supply

Connection

N C B

LOAD

A

4–6 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 4: ELECTRICAL INSTALLATION

1b. Single Phase Hookup

N C

LINE

B

A

ELECTRICAL CONNECTION DIAGRAMS

Electronic Circuits

CT

Shorting

Block

Earth Ground

Ia+ IaIb+ IbIc+ Ic-

CN2

CN1

Va Vb Vc Vref L1 L2 PE

FUSE

0.1A

Power

Supply

Connection

N C B

LOAD

A

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 4–7

ELECTRICAL CONNECTION DIAGRAMS

2. Service: 2.5 Element WYE, 4-Wire with No PTs, 3 CTs

CHAPTER 4: ELECTRICAL INSTALLATION

N C

LINE

B

A

Electronic Circuits

CT

Shorting

Block

Earth Ground

Ia+ IaIb+ IbIc+ Ic-

CN2

CN1

Va Vb Vc Vref L1 L2 PE

FUSES

2 x 0.1A

Power

Supply

Connection

N C B

LOAD

A

Select: “2.5 EL WYE” (2.5 Element Wye) in Meter Programming setup.

C

A

B

4–8 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 4: ELECTRICAL INSTALLATION

3. Service: WYE, 4-Wire with 3 PTs, 3 CTs

N C

LINE

B

A

ELECTRICAL CONNECTION DIAGRAMS

Electronic Circuits

CT

Shorting

Block

Earth Ground

Ia+ IaIb+ IbIc+ Ic-

CN2

CN1

Va Vb Vc Vref L1 L2 PE

FUSES

3 x 0.1A

Power

Supply

Connection

Earth Ground

N C B

LOAD

A

Select: “3 EL WYE” (3 Element Wye) in Meter Programming setup.

C

A

B

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 4–9

ELECTRICAL CONNECTION DIAGRAMS

4. Service: 2.5 Element WYE, 4-Wire with 2 PTs, 3 CTs

CHAPTER 4: ELECTRICAL INSTALLATION

N C

LINE

B

A

Electronic Circuits

CT

Shorting

Block

Earth Ground

Ia+ IaIb+ IbIc+ Ic-

CN2

CN1

Va Vb Vc Vref L1 L2 PE

FUSES

2 x 0.1A

Power

Supply

Connection

Earth Ground

N C B

LOAD

A

Select: “2.5 EL WYE” (2.5 Element Wye) in Meter Programming setup.

C

A

B

4–10 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 4: ELECTRICAL INSTALLATION

5. Service: Delta, 3-Wire with No PTs, 2 CTs

C

LINE

B

A

ELECTRICAL CONNECTION DIAGRAMS

Electronic Circuits

CT

Shorting

Block

Earth Ground

Ia+ IaIb+ IbIc+ Ic-

CN2

CN1

Va Vb Vc Vref L1 L2 PE

FUSES

3 x 0.1A

C B

LOAD

A

Select: “2 Ct dEL” (2 CT Delta) in Meter Programming setup.

Power

Supply

Connection

C

C

B A B

Not Connected to Meter

A

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 4–11

ELECTRICAL CONNECTION DIAGRAMS

6. Service: Delta, 3-Wire with No PTs, 3 CTs

C

LINE

B

A

CHAPTER 4: ELECTRICAL INSTALLATION

Electronic Circuits

CT

Shorting

Block

Earth Ground

Ia+ IaIb+ IbIc+ Ic-

CN2

CN1

Va Vb Vc Vref L1 L2 PE

FUSES

3 x 0.1A

C B

LOAD

A

Select: “2 Ct dEL” (2 CT Delta) in Meter Programming setup.

Power

Supply

Connection

C

C

B A B

Not Connected to Meter

A

4–12 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 4: ELECTRICAL INSTALLATION

7. Service: Delta, 3-Wire with 2 PTs, 2 CTs

C

LINE

B

A

ELECTRICAL CONNECTION DIAGRAMS

Electronic Circuits

CT

Shorting

Block

Earth Ground

Ia+ IaIb+ IbIc+ Ic-

CN2

CN1

Va Vb Vc Vref L1 L2 PE

FUSES

2 x 0.1A

Earth Ground

C B

LOAD

A

Select: “2 Ct dEL” (2 CT Delta) in Meter Programming setup.

Power

Supply

Connection

C

C

B A B

Not Connected to Meter

A

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 4–13

ELECTRICAL CONNECTION DIAGRAMS

8. Service: Delta, 3-Wire with 2 PTs, 3 CTs

LINE

C B

A

CHAPTER 4: ELECTRICAL INSTALLATION

Electronic Circuits

CT

Shorting

Block

Earth Ground

Ia+ IaIb+ IbIc+ Ic-

CN2

CN1

Va Vb Vc Vref L1 L2 PE

FUSES

2 x 0.1A

Earth Ground

C B

LOAD

A

Select: “2 Ct dEL” (2 CT Delta) in Meter Programming setup.

Power

Supply

Connection

C C

B A B

Not Connected to Meter

A

4–14 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 4: ELECTRICAL INSTALLATION

9. Service: Current Only Measurement (Three Phase)

ELECTRICAL CONNECTION DIAGRAMS

N C

LINE

B

A

Electronic Circuits

CT

Shorting

Block

Earth Ground

Ia+ IaIb+ IbIc+ Ic-

CN2

CN1

Va Vb Vc Vref L1 L2 PE

Note

FUSE

0.1A

20VAC

Minimum

Power

Supply

Connection

NOTE

N C B

LOAD

A

Select: “3 EL WYE” (3 Element Wye) in Meter Programming setup.

Even if the meter is used for only Amp readings, the unit requires a Volts AN reference.

Please make sure that the Voltage input is attached to the meter. AC Control Power can be used to provide the reference signal.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 4–15

ELECTRICAL CONNECTION DIAGRAMS

10. Service: Current Only Measurement (Dual Phase)

CHAPTER 4: ELECTRICAL INSTALLATION

N

LINE

B

A

Electronic Circuits

CT

Shorting

Block

Earth Ground

Ia+ IaIb+ IbIc+ Ic-

CN2

CN1

Va Vb Vc Vref L1 L2 PE

Note

FUSE

0.1A

20VAC

Minimum

NOTE

Power

Supply

Connection

N B

LOAD

A

Select: “3 EL WYE” (3 Element Wye) in Meter Programming setup.

Even if the meter is used for only Amp readings, the unit requires a Volts AN reference.

Please make sure that the Voltage input is attached to the meter. AC Control Power can be used to provide the reference signal.

4–16 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 4: ELECTRICAL INSTALLATION

11. Service: Current Only Measurement (Single Phase)

ELECTRICAL CONNECTION DIAGRAMS

N

LINE

A

Electronic Circuits

CT

Shorting

Block

Earth Ground

Ia+ IaIb+ IbIc+ Ic-

CN2

CN1

Va Vb Vc Vref L1 L2 PE

Note

FUSE

0.1A

20VAC

Minimum

NOTE

Power

Supply

Connection

N A

LOAD

Select: “3 EL WYE” (3 Element Wye) in Meter Programming setup.

Even if the meter is used for only Amp readings, the unit requires a Volts AN reference.

Please make sure that the Voltage input is attached to the meter. AC Control Power can be used to provide the reference signal.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 4–17

ELECTRICAL CONNECTION DIAGRAMS CHAPTER 4: ELECTRICAL INSTALLATION

4–18 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

GE

Grid Solutions

EPM 6100 Electronic Submeter

Chapter 5: Communication

Installation

Communication Installation

5.1

EPM 6100 Communication

The EPM 6100 meter provides two independent Communication Ports plus KYZ Pulse

Output. (For information on Ethernet configuration, see Chapter 6.) The first port, Com 1, is an IrDA Port, which uses Modbus ASCII. The second port, Com 2, provides RS-485 or RJ-45

Ethernet or WI-FI Ethernet Communication.

5.1.1

IrDA Port (Com 1)

The Com 1 IrDA port is located on the face of the submeter. The IrDA Port allows the unit to be set up and programmed with any device capable of IrDA communication, such as an

IrDA-equipped laptop PC.

IrDA port settings are:

Address: 1

Baud Rate: 57.6k

Protocol: Modbus ASCII

Figure 5-1: Simultaneous Dual Communication Paths

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 5–1

Note

5–2

Note

EPM 6100 COMMUNICATION CHAPTER 5: COMMUNICATION INSTALLATION

5.1.2

RS485 Communication Com 2 (485 Option)

The EPM 6100 meter’s RS485 port uses standard 2-wire, half duplex architecture. The

RS485 connector is located on the front of the meter, under the cover.

A connection can easily be made to a Master device or to other Slave devices, as shown below.

Care should be taken to connect

+

to

+

and

-

to

-

connections.

Wireless Ethernet Connection

Electronic Circuits

Ia Ia Ib Ib Ic Ic

(+) (-) (+) (-) (+) (-)

Va Vb Vc Vn L1 L2 PE

Z K Y + - SH

JP2: Must be in

position 1-2 for

RS485

RS485

To Other

Devices

Pulse Contacts

The EPM 6100 meter’s RS485 can be programmed with the buttons on the face of the meter or by using GE Communicator software.

Standard RS485 Port Settings:

Address: 001 to 247

Baud Rate: 9600, 19200, 38400 or 57600 Baud

Protocol: Modbus RTU, Modbus ASCII, DNP 3.0

The position of Jumper 2 (JP2) must be set for either RS485 or Ethernet communication

(see figure on next page). You put the jumper on positions 2 and 3 for LAN (Ethernet) communication, and on 1 and 2 for RS485 communication.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 5: COMMUNICATION INSTALLATION EPM 6100 COMMUNICATION

JP2

LAN/

RS485

Setting

5.1.3

KYZ Output

• The KYZ pulse output provides pulsing energy values that are used to verify the submeter’s readings and accuracy.

• The KYZ pulse output is located on meter’s face, under the cover, next to the RS485 connection.

See Section 2.2 for the KYZ output specifications; see Section 7.4 for pulse constants.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 5–3

EPM 6100 COMMUNICATION

See section 7.3.1 for Pulse Constants.

CHAPTER 5: COMMUNICATION INSTALLATION

5–4

5.1.4

Ethernet Connection

In order to use the Ethernet capability of the EPM 6100 meter, the Ethernet Module must be installed in your meter, and the JP2 must be set to positions 2-3. You can use either wired

Ethernet, or Wi-Fi.

• For wired Ethernet, use Standard RJ-45 10/100Base T cable to connect to the EPM

6100 meter. The RJ-45 line is inserted into the RJ-45 Port of the meter.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 5: COMMUNICATION INSTALLATION EPM 6100 COMMUNICATION

• For Wi-Fi connections, make sure you have the correct antenna attached to the meter.

Refer to Chapter 6 of this manual, Ethernet Configuration, for instructions on how to set up the Network Module for the EPM 6100 meter.

See the JP2 figure and instructions on page 5-3.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 5–5

Note

METER COMMUNICATION AND PROGRAMMING OVERVIEW CHAPTER 5: COMMUNICATION INSTALLATION

5.2

Meter Communication and Programming Overview

You can connect to the meter using either the RS485 connection (as shown in Section 5.1.2) or the RJ45/WiFi connection (as shown in Section 5.1.4). Once a connection is established,

GE Communicator software can be used to program the meter and communicate to other devices.

Meter Connection

To provide power to the meter, use one of the wiring diagrams in Chapter 4 or attach an

Aux cable to GND, L(+) and N(-).

The RS485 cable attaches to SH, B(-) and A(+) as shown in Section 5.1.2.

5.2.1

How to Connect

1.

Open the GE Communicator software.

NOTE

Click the Connect Icon

2.

Click the Connect button on the Icon bar.

3.

The Connect screen opens, showing the Initial settings.

Make sure your settings are the same as those shown here, except for the IP Address field, which must be your device’s IP address. The address shown here is the default

Ethernet option address.

The settings you make will depend on whether you are connecting to the meter via Serial

Port or Network. Use the pull-down windows to make any necessary changes.

5–6

Figure 5-2: Serial Port Connection

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 5: COMMUNICATION INSTALLATION METER COMMUNICATION AND PROGRAMMING OVERVIEW

Figure 5-3: Network Connection

Make sure your settings (in the case above, Serial Port) are the same as those shown here.

4.

Click the Connect button on the screen. (You may have to disconnect power, reconnect power and then click Connect.)

The Device Status screen opens, confirming the connection.

5.

Click OK to close the Device Status screen.

The GE Communicator Main screen reappears.

6.

Click the Profile button on the toolbar.

You will see the EPM 6100 meter’s Device Profile screen. The tabs at the top of the screen allow you to navigate between screens

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 5–7

METER COMMUNICATION AND PROGRAMMING OVERVIEW CHAPTER 5: COMMUNICATION INSTALLATION

7.

Click the Communications tab. You will see the screen shown on the next page. Use this screen to enter communication settings for the meter's two on-board ports: the

IrDA port (COM 1) and RS485 port (COM 2) Make any necessary changes to settings.

Note

Valid Communication Settings are as follows:

COM1: (IrDA)

Response Delay: (0-750 msec)

COM2: (RS485)

Address: (1-247)

Protocol: (Modbus RTU, Modbus ASCII or DNP)

Baud Rate: (1200 to 57600)

Response Delay: (0-750 msec)

DNP Options for Voltage, Current, and Power: These fields allow you to choose

Primary or Secondary Units for DNP, and to set custom scaling if you choose

Primary. See the GE Communicator Instruction Manual for more information.

8.

When changes are complete, click the Update Device button to send a new profile to the meter.

9.

Click Exit to leave the Device Profile or click other menu items to change other aspects of the Device Profile (see the following section for instructions).

5.2.2

EPM 6100 Device Profile Settings

NOTE

This section contains instructions for setting some of the EPM 6100 meter’s parameters.

Refer to the GE Communicator Instruction Manual for detailed instructions on all of the available settings. You can view the manual online by clicking Help > Contents from the GE

Communicator Main screen.

5–8 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 5: COMMUNICATION INSTALLATION

CT, PT Ratios and System Hookup

METER COMMUNICATION AND PROGRAMMING OVERVIEW

Note

Note

NOTE

NOTE

The screen fields and acceptable entries are as follows:

CT Ratios

CT Numerator (Primary): 1 - 9999

CT Denominator (Secondary): 5 or 1 Amp

This field is display only.

CT Multiplier (Scaling): 1, 10 or 100

Current Full Scale: Display only

PT Ratios

PT Numerator (Primary): 1 - 9999

PT Denominator (Secondary): 40 - 600

PT Multiplier (Scaling): 1, 10, 100, or 1000

Voltage Full Scale: Display only

System Wiring

3 Element Wye; 2.5 Element Wye; 2 CT Delta

Phases Displayed

A, AB, or ABC

Voltage Full Scale = PT Numerator x PT Multiplier

Example Settings:

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 5–9

METER COMMUNICATION AND PROGRAMMING OVERVIEW

Note

CHAPTER 5: COMMUNICATION INSTALLATION

For a system that has 14400V primary with a 120V secondary line to neutral (PT Ratio of 120:1), set the following PT Ratios in the entry fields:

PT Numerator (Primary) 1440

PT Denominator (Secondary) 120

PT Multiplier 10

The Voltage Full Scale field will read 14.40k.

Use the box at the bottom of the screen to enter the minimum voltage threshold, which is a percentage of the voltage full scale. Enter a percentage between 0 and 12.7 in the % entry field. The minimum primary voltage based on the percentage you entered is displayed at the bottom of the screen.

Example CT Settings:

200/5 Amps: Set the Ct-n value for 200, Ct-Multiplier value for 1

800/5 Amps: Set the Ct-n value for 800, Ct-Multiplier value for 1

2,000/5 Amps: Set the Ct-n value for 2000, Ct-Multiplier value for 1

10,000/5 Amps: Set the Ct-n value for 1000, Ct-Multiplier value for 10

Example PT Settings:

277/277 Volts: Pt-n value is 277, Pt-d value is 277, Pt-Multiplier is 1

14,400/120 Volts: Pt-n value is 1440, Pt-d value is 120, Pt-Multiplier value is 10

138,000/69 Volts: Pt-n value is 1380, Pt-d value is 69, Pt-Multiplier value is 100

345,000/115 Volts: Pt-n value is 3450, Pt-d value is 115, Pt-Multiplier value is 100

345,000/69 Volts: Pt-n value is 345, Pt-d value is 69, Pt-Multiplier value is 1000

Settings are the same for Wye and Delta configurations.

NOTE

5–10 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 5: COMMUNICATION INSTALLATION METER COMMUNICATION AND PROGRAMMING OVERVIEW

Energy and Display

The settings on this screen determine the display configuration of the meter’s faceplate.

Note

NOTE

The screen fields and acceptable entries are as follows:

Power And Energy Settings

Power Direction: View as Load or View as Generator

Power Scale: unit, kilo (k), Mega (M), or auto.

Energy Decimal Places: 0 - 6

Energy Scale: unit; kilo (K); Mega (M)

Example: a reading for Digits: 8; Decimals: 3; Scale: K would be formatted as

00123.456k

Demand Averaging

Type: Block or Rolling

Interval (minutes): 5; 15; 30; 60

Subintervals (if Rolling is selected): 1; 2; 3; 4

Auto Scroll

Click to set On or Off.

Display Configuration:

Click Values to be displayed. (You MUST select at least ONE.)

If incorrect values are entered on this screen the following message appears: WARNING:

Current, CT, PT and Energy Settings will cause invalid energy accumulator values.

Change the settings until the message disappears.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 5–11

METER COMMUNICATION AND PROGRAMMING OVERVIEW

Settings

CHAPTER 5: COMMUNICATION INSTALLATION

Note

The screen fields are as follows:

Password

The meter is shipped with Password Disabled. There is NO DEFAULT PASSWORD.

Enable Password for Reset: click to Enable.

Enable Password for Configuration: click to Enable.

Change Password: click to Change.

Device Designation: optional user-assigned label.

5–12 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 5: COMMUNICATION INSTALLATION

Limits (THD option only)

METER COMMUNICATION AND PROGRAMMING OVERVIEW

Note

Note

Limits are transition points used to divide acceptable and unacceptable measurements.

When a value goes above or below the limit an out-of-limit condition occurs. Once they are configured, you can view the out-of-Limits (or Alarm) conditions in the Limits log or Limits polling screen. You can also use Limits to trigger relays. See the GE Communicator

Instruction Manual for details.

For up to 8 Limits, set:

Address: Modbus Address (1 based)

Label: Your designation for the limit

High Set Point: % of Full Scale

Example: 100% of 120VFS = 120V; 90% of 120V FS = 108V

Return Hysteresis: Point to go back in Limit

Example: High Set Point = 110% (Out of Limit at 132V);Return Hysteresis =

105%(Stay Out until 126V)

Low Set Point: % of Full Scale

Return Hysteresis: Point to go back in Limit.

Your settings appear in the Table at the bottom of the screen

If Return Hysteresis is > High Set Point, the Limit is Disabled.

When you have finished making changes to the Device Profile, click Update Device to send the new Profile settings to the meter.

Refer to Chapter 9 of the GE Communicator Instruciton Manual for additional instructions on configuring the EPM 6100 submeter settings.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 5–13

METER COMMUNICATION AND PROGRAMMING OVERVIEW CHAPTER 5: COMMUNICATION INSTALLATION

5–14 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

GE

Grid Solutions

EPM 6100 Electronic Submeter

Chapter 6: Ethernet Configuration

Ethernet Configuration

Note

6.1

Introduction

NOTE

The EPM 6100 Meter has an option for a Wi-Fi (Wireless) or RJ-45 Ethernet connection. This option allows the submeter to be set up for use in a LAN (Local Area Network), using standard Wi-Fi base stations. Configuration for these connections is easily accomplished through your PC using Telnet connections. Then you can access the submeter to perform meter functions directly through any computer on your LAN: the EPM 6100 meter does not need to be directly connected (wired) to these computers for it to be accessed.

This chapter outlines the procedures you use to set up the EPM 6100 meter to function via its Ethernet configuration.

These instructions are for EPM 6100 meters that have a Reset button, located on the

main board.

Some earlier versions of the EPM 6100 meter are not equipped with a Reset button. The instructions for Ethernet configuration are slightly different for these meters.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 6–1

FACTORY DEFAULT SETTINGS CHAPTER 6: ETHERNET CONFIGURATION

You can tell whether or not your meter has a Reset button: open the front cover of the EPM

6100 meter. The Reset button is located at the top, right of the main board.

Reset Button

JP3

JP2

Note

If your meter does not have a Reset button, please contact GE Technical Support to obtain configuration instructions for your meter’s Ethernet connection.

Note

6.2

Factory Default Settings

The settings shown in Section 6.2.1 below are the default settings for your EPM 6100 meter: they are the settings programmed into your meter when it is shipped to you. You may need to modify some of these settings when you set up your Ethernet configuration.

NOTE

Change Settings 1, 6, and 7 ONLY. Settings 2, 3, and 4 must be the same as shown in

Section 6.2.1. If they are not, reset them to the values shown in Section 6.2.1.

If setting 3 is not CP0..! Defaults (In), the procedure for Network Module Hardware

Initialization (Section 6.3.4) will not work.

6.2.1

Modbus/TCP to RTU Bridge Setup

NOTE

Follow the procedure described in Section 6.4 if these Factory Default parameters need to be restored in the meter.

1. Network/IP Settings:

6–2 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 6: ETHERNET CONFIGURATION FACTORY DEFAULT SETTINGS

Network Mode…………Wired Only

IP Address ...............….. 10.0.0.1

Default Gateway ............ --- not set ---

Netmask .................... …255.255.255.0

2. Serial & Mode Settings:

Protocol ................... Modbus/RTU,Slave(s) attached

Serial Interface ........... 57600,8,N,1,RS232,CH1

3. Modem/Configurable Pin Settings:

CP0..! Defaults (In) CP1..! GPIO (In) CP2..! GPIO (In)

CP3..! GPIO (In) CP4..! GPIO (In) CP5..! GPIO (In)

CP6..! GPIO (In) CP7..! GPIO (In) CP8..! GPIO (In)

CP9..! GPIO (In) CP10.! GPIO (In)

RTS Output ................. Fixed High/Active

4. Advanced Modbus Protocol settings:

Slave Addr/Unit Id Source .. Modbus/TCP header

Modbus Serial Broadcasts ... Disabled (Id=0 auto-mapped to 1)

MB/TCP Exception Codes ..... Yes (return 00AH and 00BH)

Char, Message Timeout ...... 00050msec, 05000msec

6. WLAN Settings:

WLAN................................... Disabled, network:LTRX_IBSS

Topology.............................. Adhoc, Country: US, Channel: 11

Security.................................none

TX Data rate.......................54 Mbps auto fallback

Power management......Disabled

Soft AP Roaming...............N/A

Ad-hoc merging.................Enabled

WLAN Max failed packets..0

7. Security Settings:

SNMP................................Enabled

SNMP Community Name...public

Telnet Setup.....................Enabled

TFTP Download................ Enabled

Port 77FEh....................... Enabled

Enhanced Password..........Disabled

D)efault settings, S)ave, Q)uit without save

Select Command or parameter set (1..7) to change:

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 6–3

CONFIGURE NETWORK MODULE CHAPTER 6: ETHERNET CONFIGURATION

6.3

Configure Network Module

These procedures detail how to set up the EPM 6100 meter on the Network Module.

Only one person at a time can be logged into the network port. This eliminates the possibility of several people trying to configure the Ethernet interface simultaneously.

6.3.1

Configuration Requirements

You may want to consult your network administrator before performing these procedures.

Some functions may be restricted to the network administrator.

If you have only one Ethernet adapter (network card), the screen displays only that configuration. You will use this Ethernet adapter to access the EPM 6100 meter’s Network

Module. You may have to configure the Ethernet adapter in order to use it with the EPM

6100 meter’s Network Module, using the instructions in Section 6.4.2.

If you have multiple Ethernet adapters (network cards) installed on your computer, you must choose, configure and use the correct one to access the Network Module.

The Ethernet Adapter must be set up for point-to-point connection in order for it to connect to the EPM 6100 meter’s Network module, as follows:

IP Address should be 10.0.0.2

Subnet Mask should be 255.255.255.0

These settings can be made in the Ethernet Adapter. Follow the procedure in Section 6.3.2.

6.3.2

Configuring the Ethernet Adapter

1.

From the PC’s Start Menu, select Control Panel > Network Connections or Control

Panel > Network and Internet > Network and Sharing Center.

6–4 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 6: ETHERNET CONFIGURATION CONFIGURE NETWORK MODULE

You will see a screen showing your network connections. An example is shown below.

Depending on your Operating system, the screen you see may look a bit different.

2.

Right click on the Local Area Network Connection you will be using to connect to the

EPM 6100 meter, and select Properties from the pull-down menu.

You will see a screen similar to the one shown below:

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 6–5

CONFIGURE NETWORK MODULE CHAPTER 6: ETHERNET CONFIGURATION

3.

Select Internet Protocol [TCP/IP] from the middle of the screen and click the

Properties button.

You will see the screen shown below:

Note

4.

Click the Use the Following IP Address radio button.

The screen changes to allow you to enter the IP Address and Subnet Mask.

• Enter 10.0.0.2 in the IP Address field.

• Enter 255.255.255.0 in the Subnet Mask field.

5.

Click the OK button.

6.

You can now close the Local Area Connection Properties and Network Connection windows.

6.3.3

Detailed Configuration Parameters

Certain parameters must be configured before the Ethernet Interface can function on a network. The Ethernet Interface can be locally or remotely configured using the procedures shown below.

Use a Telnet connection to configure the unit over the network. The Ethernet Interface's configuration is stored in memory and is retained without power. The configuration can be changed at any time. The Ethernet Interface performs a reset after the configuration has been changed and stored.

NOTE

If your PC is running Windows 7, you need to enable Telnet before using it as follows:

1.

Open the Control Panel.

6–6 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 6: ETHERNET CONFIGURATION

2.

Select Programs and Features.

CONFIGURE NETWORK MODULE

Note

NOTE

3.

Select Turn Windows features on or off.

4.

Check the box for Telnet Client.

5.

Click OK. The Telnet client is now available.

To establish a Telnet connection on port 9999, follow these steps:

1.

From the Windows Start menu, click Run and type 'cmd’.

2.

Click the OK button to bring up the Windows' Command Prompt window.

3.

In the Command Prompt window, type:

“telnet 10.0.0.1 9999” and press the Enter key.

Make sure there is a space between the IP address and 9999.

When the Telnet connection is established you will see a message similar to the example shown below.

Modbus Bridge

Serial Number 5415404 MAC Address 00:20:4A:54:3C:2C

Software Version V01.2 (000719)

Press Enter to go into Setup Mode

4.

To proceed to Setup Mode press Enter again.

You are now in Setup Mode - you can configure the parameters for the software you are using by entering one of the numbers on the Change Setup

Menu, or you can confirm default values by pressing Enter. Be sure to store new configurations when you are finished. The Ethernet Interface will then perform a power reset and the Factory Default Settings will display again

(refer to Section 6.2.1).

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 6–7

CONFIGURE NETWORK MODULE

Note

CHAPTER 6: ETHERNET CONFIGURATION

5.

Type the number for the group of parameters you need to modify. After the group is selected, the individual parameters display for editing. Either:

• Enter a new parameter if a change is required

• Press Enter to proceed to the next parameter without changing the current one.

Change Settings 1 and 6 ONLY! Settings 2, 3, and 4 must have the default values shown.

6.

Continue setting up parameters as needed. After finishing your modifications, make sure to press the “S” key on the keyboard. This will save the new values and perform a Reset in the Ethernet Module.

6.3.4

Example of Modifying Parameters in Groups 1, 6, and 7

Follow the steps in 6.3.3 to enter Setup Mode.

• Network IP Settings Detail (1) (Set device with static IP Address.)

Network Mode: 0=Wired only, 1=Wireless Only <0> ? Key 1 and press Enter for WiFi mode.

IP Address <010> 192.<000> 168.<000> .<000> .<001> You can change the IP address in this setting.

Set Gateway IP Address <N> ? Y (If you want to change the Gateway address.)

Gateway IP Address : <192> .<168> .<000> .<001> (You can change the Gateway address in this setting.)

Set Netmask <N for default> <Y> ? Y (If you want to change the Netmask.)

<255> .<255> .<255> .<000> (You can change the Netmask in this setting.)

Change telnet config password <N> ? N

• WLAN Settings Detail (6)

(The settings shown are recommended by GE Multilin for use with the EPM 6100 meter. You will only be able to access these settings if you have set Network

Mode to “1” (to select Wireless mode) in the Network IP Settings Detail, shown previously.)

Topology: 0=Infrastructure, 1=Ad-Hoc <1> ? 0

Network name <SSID> <LTRX_IBSS> ? EPM_METERS

Security suite: 0=none, 1=WEP, 2=WPA, 3=WPA2/802.11i <0> ? Enter the number of the encryption method are using, e.g., 3 for WPA2/802.11i.

• If you select “1” (WEP), you will see the following settings:

Authentication 0=open/none, 1=shared <0> ? (Enter 1 if you want the encryption key matched with a communication partner before messages are passed through.)

Encryption 1=WEP64, 2=WEP128 <1> 2

Change Key <N> Y

Display Key <N> N

Key Type 0=hex, 1=passphrase <0> 0

Enter Key:

You can manually enter 26 hexadecimal characters (required for 128-bit

6–8 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

Note

CHAPTER 6: ETHERNET CONFIGURATION CONFIGURE NETWORK MODULE encryption) or you can use a WEP Key provider online. WEP Key providers should note on their website that their encryption algorithm is for the Wired

Equivalent Privacy portion of IEEE 802.11b/g.

WEP Key Provider Steps

1. Input 26 alphanumeric characters as your Passphrase.

Remember your Passphrase.

PASSPHRASE TO HEXADECIMAL WEP KEYS

Enter the passphrase below.

1009egbck001036ab

Generate keys

2. Click the Generate Keys button. Your Hexadecimal WEP Keys display.

PASSPHRASE TO HEXADECIMAL WEP KEYS

The passphrase 1009egbcke001306ab produces the following keys:

64-BIT (40-BIT KEYS)

1.

AA43FB768D

2.

637D8DB9CE

3.

AFDE50AF61

4.

0c35E73E25

128-BIT (104-BIT) KEY

041D7773D8B2C1D97BE9531DC

3. Enter the 128-bit Key.

TX Key Index <1> ? 1 (The WEP key used for transmissions - must be a value between 1 and 4.)

TX Data Rate: 0=fixed, 1=auto fallback <1> ? 1

TX Data rate: 0=1, 1=2, 2=5.5, 3=11, 4=18, 5=24, 6=36, 7=54 Mbps <7> ?

Enter data transmission rate, e.g., 7 for 54Mbps.

Minimum Tx Data rate: 0=1, 1=2, 2=5.5, 3=11, 4=18, 5=24, 6=36, 7=54 Mbps

<0> ? 0

Enable Power management <N> ? Y

Enable Soft AP Roaming <N> ? N

Max Failed Packets (6-64, 255=disable) <6>? 6

• If you select “2” (WPA), you will make the following settings:

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 6–9

CONFIGURE NETWORK MODULE CHAPTER 6: ETHERNET CONFIGURATION

Change Key <N> Y

Display Key <N> N

Key Type 0=hex, 1=passphrase <0> 1

Enter Key: (The maximum length of the passphrase is 63 characters.

GE Multilin recommends using a passphrase of 20 characters or more for maximum security.)

Encryption: 0=TKIP, 1=TKIP+WEP <0> ? Set the type to the minimum required security level. The “+” sign indicates that the group (broadcast) encryption method is different from the pairwise (unicast) encryption (WEP and TKIP).

TX Data rate: 0=fixed, 1=auto fallback <1> ? 1

TX Data rate: 0=1, 1=2, 2=5.5, 3=11, 4=18, 5=24, 6=36, 7=54 Mbps <7> ?

Enter data transmission rate, e.g., 7 for 54Mbps.

Minimum Tx Data rate: 0=1, 1=2, 2=5.5, 3=11, 4=18, 5=24, 6=36, 7=54 Mbps

<0> ? 0

Enable Power management <N> ? Y

Enable Soft AP Roaming <N> ? N

Max Failed Packets (6-64, 255=disable) <6>? 6

• If you select “3” (WPA2/802.11i), you will make the following settings:

Change Key <N> Y

Display Key <N> N

Key Type 0=hex, 1=passphrase <0> 1

Enter Key: (The maximum length of the passphrase is 63 characters.

GE Multilin recommends using a passphrase of 20 characters or more for maximum security.)

Encryption: 0=CCMP, 1=CCMP+TKIP, 2=CCMP+WEP, 3=TKIP, 4=TKIP+WEP <3> ?

(Set the type to the minimum required security level. The “+” sign indicates that the group (broadcast) encryption method is different from the pairwise

(unicast) encryption. For example, for CCMP+TKIP, CCMP is the pairwise encryption and TKIP is the group encryption. CCMP is the default for WPA2.)

TX Data rate: 0=fixed, 1=auto fallback <1> ? 1

TX Data rate: 0=1, 1=2, 2=5.5, 3=11, 4=18, 5=24, 6=36, 7=54 Mbps <7> ?

Enter data transmission rate, e.g., 7 for 54Mbps.

Minimum Tx Data rate: 0=1, 1=2, 2=5.5, 3=11, 4=18, 5=24, 6=36, 7=54 Mbps

<0> ? 0

Enable Power management <N> ? Y

Enable Soft AP Roaming <N> ? N

Max Failed Packets (6-64, 255=disable) <6>? 6

• Security Settings (7)

Disable SNMP <N> ? N

SNMP Community Name <public>: (You can enter an SNMP community name here.)

Disable Telnet Setup <N> ? N (If you change this setting to Y, you will not be able to

6–10 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 6: ETHERNET CONFIGURATION

Note

NETWORK MODULE HARDWARE INITIALIZATION use Telnet to re-configure the Network card once you save the settings, without resetting the Network card, as shown in Section 6.4. However, you may want to disable Telnet setup and Port 77FEh to prevent users from accessing the setup from the network.)

Disable TFTP Firmware Update <N> ? N

Disable Port 77FEh <N> ? N (For security purposes, you may want to disable Telnet setup and Port 77FEh to prevent users from accessing the setup from the network.)

Enable Enhanced Password <N> ? N

Exiting the screen

DO NOT PRESS ‘Das it will overwrite all changes and will save the default values.

Press 'S' to Save the settings you've entered.

Note

6.4

Network Module Hardware Initialization

If you don’t know your current Network Module settings, or if the settings are lost, you can use this method to initialize the hardware with known settings you can then work with.

Use extreme care when following this procedure. Parts of the Main Board have HIGH

VOLTAGE that you must not touch. Only touch the Reset button, shorting blocks and jumpers as described in the procedure.

Reset Button

JP3

JP2

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

Figure 6-1: Right Side of Main Board

6–11

NETWORK MODULE HARDWARE INITIALIZATION

Note

CHAPTER 6: ETHERNET CONFIGURATION

NOTE

1.

Place a shorting block on JP3 and press the Reset button on the main board.

JP3 is located at the right hand side, upper corner of the main board. The shorting block can be “borrowed” from JP2, located at the middle, right hand side. See the figure shown above.

2.

After you press the Reset button, relocate the jumper back to JP2.

3.

Make sure your settings are the same as those in Section 6.2.1. Follow the steps in

Section 6.3 to configure the Network Module.

6–12 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

GE

Grid Solutions

EPM 6100 Electronic Submeter

Chapter 7: Using the Submeter

Using the Submeter

7.1

Introduction

The EPM 6100 meter can be configured and a variety of functions can be accomplished simply by using the Elements and the Buttons on the submeter face. This chapter will review Front Panel Navigation. Complete Navigation Maps can be found in Appendix A of this manual.

7.1.1

Submeter Face Elements

Reading Type

Indicator

IrDA Com

Port

% of Load

Bar

LM1

LM2

MIN

MAX

%THD

PRG

IrDA

120%-

90%-

60%-

30%-

%LOAD

MENU ENTER

120

.

0

120

.

0

120

.

0

A

VOLTS L-N

VOLTS L-N

AMPS

W/VAR/PF

B

VA/Hz

Wh

VARh

VAh

C

Wh Pulse

KILO

MEGA

Parameter

Designator

Watt-hour

Test Pulse

Scaling

Factor

Figure 7-1: Face Plate of 100-S with Elements

Reading Type Indicator: Indicates Type of Reading

IrDA Communication Port: Com 1 Port for Wireless Communication

% of Load Bar: Graphic Display of Amps as % of the Load

Parameter Designator: Indicates Reading Displayed

Watt-Hour Test Pulse: Energy Pulse Output to Test Accuracy

Scale Selector: Kilo or Mega multiplier of Displayed Readings

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 7–1

USING THE FRONT PANEL

7.1.2

Submeter Face Buttons

CHAPTER 7: USING THE SUBMETER

MENU ENTER

VOLTS L-N

LM2

%THD

PRG

LM1

IrDA

MIN

120

.

0

120

.

0

A

B

VOLTS L-N

AMPS

W/VAR/PF

VA/Hz

Wh

VARh

VAh

120%-

90%-

60%-

120

.

0

C

Wh Pulse

Down Right

%LOAD

MEGA

Figure 7-2: Face Plate of 100-S with Buttons

The meter face has Menu, Enter, Down and Right buttons, which allow you to perform the following functions:

• View Meter Information

• Enter Display Modes

• Configure Parameters (may be Password Protected)

• Perform Resets (may be Password Protected)

• Perform LED Checks

• Change Settings

• View Parameter Values

• Scroll Parameter Values

• View Limit States (THD option only)

Note

7.2

Using the Front Panel

You can access four modes using the EPM 6100 meter’s front panel buttons:

• Operating Mode (Default)

• Reset Mode

• Configuration Mode

• Information Mode.

Information Mode displays a sequence of screens that show model information, such as Frequency, Amps, Software Option, etc.

Use the Menu, Enter, Down and Right buttons to navigate through each mode and its related screens.

NOTE

• Appendix A contains the complete Navigation Map for the front panel display modes and their screens.

• The meter can also be configured using software; see the GE Communicator

Instruction Manual for instructions.

7–2 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 7: USING THE SUBMETER USING THE FRONT PANEL

7.2.1

Understanding Startup and Default Displays

Upon Power Up, the meter displays a sequence of screens:

Lamp Test Screen where all LEDs are lit

Lamp Test Screen where all digits are lit

Firmware Screen showing build number

Error Screen (if an error exists).

After startup, if auto-scrolling is enabled, the EPM 6100 meter scrolls the parameter readings on the right side of the front panel. The Kilo or Mega LED lights, showing the scale for the Wh, VARh and VAh readings. Figure 7.3 shows an example of a Wh reading.

IrDA

120%-

LM1

LM2

%THD

PRG

MIN

MAX

90%-

60%-

30%-

%LOAD

MENU ENTER

0000

0.659

C

A

VOLTS L-N

VOLTS L-N

AMPS

W/VAR/PF

B

VA/Hz

Wh

VARh

VAh

KILO

MEGA

Wh Pulse

Figure 7-3: Wh Reading

The EPM 6100 meter continues to provide scrolling readings until one of the buttons on the front panel is pressed, causing the meter to enter one of the other Modes.

7.2.2

Using the Main Menu

1.

Press the Menu button. The Main Menu screen displays.

• Reset Demand mode (rStd) is in the A window. Use the Down button to scroll, causing the Reset Energy (rStE), Configuration (CFG), Operating (OPr), and Information (InFo) modes to move to the A window.

• The mode that is currently flashing in the A window is the "Active" mode - it is the mode that can be configured.

For example:

MENU ENTER

MENU ENTER

MENU ENTER

-

A

-

A

-

A

-

B

-

B

-

B

-

C

-

C

-

C

2.

Press the Enter button from the Main Menu to view the Parameters (Settings) screen for the currently active mode (mode shown in the A window).

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 7–3

USING THE FRONT PANEL

7.2.3

Using Reset Mode

1.

Press the Enter button while rSt is in the A window.

The “rSt (Reset) ALL? no” screen appears.

CHAPTER 7: USING THE SUBMETER

Note

• If you press the Enter button again, the Main Menu appears, with the next mode in the A window. (The Down button does not affect this screen.)

• If you press the Right button, the “rSt ALL? YES” screen appears. Press Enter to perform a reset.

CAUTION! All Max and Min values will be reset.

Note

NOTE

If Password Protection is enabled for Reset, you must enter the four digit Password before you can reset the meter. To enter a password, follow the instructions in Section 7.2.4.

2.

Once you have performed a reset, the screen displays “rSt ALL donE” and then resumes auto-scrolling parameters.

7.2.4

Entering a Password

If Password Protection has been enabled in the software for Reset and/or Configuration

(see the GE Communicator Instruction Manual for information), a screen appears requesting a Password when you try to reset the meter and/or configure settings through the front panel. PASS displays in the A window and 4 dashes appear in the B window. The leftmost dash is flashing.

1.

Press the Down button to scroll numbers from 0 to 9 for the flashing dash. When the correct number appears for that dash, use the Right button to move to the next dash.

7–4 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 7: USING THE SUBMETER USING THE FRONT PANEL

Example: The left screen, below, shows four dashes. The right screen shows the display after the first two digits of the password have been entered.

-

-

MENU ENTER

A

B

-

-

MENU ENTER

PASS

12__

A

B

-

C

-

C

2.

When all 4 digits of the password have been selected, press the Enter button.

• If you are in Reset mode and the correct Password has been entered, "rSt dMd donE" or "rSt EnEr donE"displays and the screen resumes auto-scrolling parameters.

• If you are in Configuration mode and the correct Password has been entered, the display returns to the screen that required a password.

• If an incorrect Password has been entered, "PASS ---- FAIL" displays and:

• If you are in Reset mode, the previous screen is redisplayed.

• If you are in Configuration mode, the previous Operating Mode screen is redisplayed.

MENU ENTER

-

A

-

-

B

C

7.2.5

Using Configuration Mode

Configuration mode follows Reset Energy in the Main Menu.

To access Configuration mode:

1.

Press the Menu button while the meter is auto-scrolling parameters.

2.

Press the Down button until the Configuration Mode option (CFG) is in the A window.

3.

Press the Enter button. The Configuration Parameters screen displays.

4.

Press the Down button to scroll through the configuration parameters: Scroll

(SCrL), CT, PT, Connection (Cnct) and Port. The parameter currently 'Active," i.e., configurable, flashes in the A window.

5.

Press the Enter button to access the Setting screen for the currently active parameter.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 7–5

Note

Note

USING THE FRONT PANEL CHAPTER 7: USING THE SUBMETER

NOTE

You can use the Enter button to scroll through all of the Configuration parameters and their Setting screens, in order.

MENU ENTER MENU ENTER

-

A

-

A

-

B

-

B

-

C

-

C

NOTE

-

6.

The parameter screen displays, showing the current settings. To change the settings:

• Use either the Down button or the Right button to select an option.

• To enter a number value, use the Down button to select the number value for a digit and the Right button to move to the next digit.

When you try to change the current setting and Password Protection is enabled for the meter, the Password screen displays. See Section 7.2.4 for instructions on entering a password.

7.

Once you have entered the new setting, press the Menu button twice.

8.

The Store ALL YES screen displays. You can either:

• Press the Enter button to save the new setting.

• Press the Right button to access the Store ALL no screen; then press the

Enter button to cancel the Save.

9.

If you have saved the settings, the Store ALL done screen displays and the meter resets.

MENU ENTER MENU ENTER

MENU ENTER

-

A

-

A

-

A

-

B

-

B

-

B

C

-

C

-

C

Configuring the Scroll Feature

When in Auto Scroll mode, the meter performs a scrolling display, showing each parameter for 7 seconds with a 1 second pause between parameters. The parameters that the meter displays are selected through software. (Refer to the GE Communicator

Instruction Manual for instructions.)

To enable or disable Auto-scrolling:

1.

Press the Enter button when SCrl is in the A window.

The Scroll YES screen displays.

7–6 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 7: USING THE SUBMETER USING THE FRONT PANEL

2.

Press either the Right or Down button if you want to access the Scroll no screen. To return to the Scoll YES screen, press either button.

MENU ENTER MENU ENTER

-

A

-

A

-

B

-

B

-

C

-

C

Note

Note

Note

NOTE

3.

Press the Enter button on either the Scroll YES screen (to enable auto-scrolling) or the

Scroll no screen (to disable auto-scrolling).

The CT- n screen appears (this is the next Configuration mode parameter).

• To exit the screen without changing scrolling options, press the Menu button.

• To return to the Main Menu screen, press the Menu button twice.

• To return to the scrolling (or non-scrolling) parameters display, press the Menu button three times.

Configuring CT Setting

The CT setting has three parts: Ct-n (numerator), Ct-d (denominator), and Ct-S (scaling).

The Ct-d screen is preset to a 5 Amp or 1 Amp value at the factory and cannot be changed.

NOTE

1.

Press the Enter button when Ct is in the A window.

2.

The Ct-n screen displays. You can either:

• Change the value for the CT numerator.

• Access one of the other CT screens by pressing the Enter button:

- Press Enter once to access the Ct-d screen

- Press Enter twice to access the Ct-S screen.

To change the value for the CT numerator:

From the Ct-n screen:

• Use the Down button to select the number value for a digit.

• Use the Right button to move to the next digit.

To change the value for CT scaling:

From the Ct-S screen:

• Use the Right button or the Down button to choose the scaling you want.

The Ct-S setting can be 1, 10, or 100.

If you are prompted to enter a password, refer to Section 7.2.4 for instructions on doing so.

NOTE

3.

After the new setting is entered, press the Menu button twice.

4.

The Store ALL YES screen displays. Press Enter to save the new CT setting.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 7–7

Note

Note

USING THE FRONT PANEL CHAPTER 7: USING THE SUBMETER

-

-

-

NOTE

MENU ENTER

Example CT Settings:

200/5 Amps: Set the Ct-n value for 200 and the Ct-S value for 1.

800/5 Amps: Set the Ct-n value for 800 and the Ct-S value for 1.

2,000/5 Amps: Set the Ct-n value for 2000 and the Ct-S value for 1.

10,000/5 Amps: Set the Ct-n value for 1000 and the Ct-S value for 10.

• The value for Amps is a product of the Ct-n value and the Ct-S value.

• Ct-n and Ct-S are dictated by primary current; Ct-d is secondary current.

MENU ENTER MENU ENTER MENU ENTER

A

B

C

-

-

-

A

B

C

-

-

-

A

B

C

-

-

-

A

B

C

7–8

NOTE

Configuring PT Setting

The PT setting has three parts: Pt-n (numerator), Pt-d (denominator), and Pt-S (scaling).

1.

Press the Enter button when Pt is in the A window.

2.

The PT-n screen displays. You can either:

• Change the value for the PT numerator.

• Access one of the other PT screens by pressing the Enter button:

- Press Enter once to access the Pt-d screen

- Press Enter twice to access the Pt-S screen.

To change the value for the PT numerator or denominator:

From the Pt-n or Pt-d screen:

• Use the Down button to select the number value for a digit.

• Use the Right button to move to the next digit.

To change the value for the PT scaling:

From the Pt-S screen:

• Use the Right button or the Down button to choose the scaling you want.

The Pt-S setting can be 1, 10, 100, or 1000.

If you are prompted to enter a password, refer to Section 7.2.4 for instructions on doing so.

3.

After the new setting is entered, press the Menu button twice.

4.

The STOR ALL YES screen displays. Press Enter to save the new PT setting.

Example Settings:

277/277 Volts: Pt-n value is 277, Pt-d value is 277, Pt-S value is 1.

14,400/120 Volts: Pt-n value is 1440, Pt-d value is 120, Pt-S value is 10.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 7: USING THE SUBMETER

Note

USING THE FRONT PANEL

138,000/69 Volts: Pt-n value is 1380, Pt-d value is 69, Pt-S value is 100.

345,000/115 Volts: Pt-n value is 3450, Pt-d value is 115, Pt-S value is 100.

345,000/69 Volts: Pt-n value is 345, Pt-d value is 69, Pt-S value is 1000.

Pt-n and Pt-S are dictated by primary voltage; Pt-d is secondary voltage.

NOTE

-

-

-

MENU ENTER

A

B

C

-

-

-

MENU ENTER

A

B

C

-

-

-

MENU ENTER

A

B

C

Configuring Connection Setting

1.

Press the Enter button when Cnct is in the A window. The Cnct screen displays.

MENU ENTER

-

A

-

-

B

C

Note

NOTE

2.

Press the Right button or Down button to select a configuration.

The choices are:

• 3 Element Wye (3 EL WYE)

• 2.5 Element Wye (2.5EL WYE)

• 2 CT Delta (2 Ct dEL)

If you are prompted to enter a password, refer to Section 7.2.4 for instructions on doing so.

3.

When you have made your selection, press the Menu button twice.

4.

The STOR ALL YES screen displays. Press Enter to save the setting.

Configuring Communication Port Setting

Port configuration consists of : Address (a three digit number), Baud Rate (9600; 19200;

38400; or 57600), and Protocol (DNP 3.0; Modbus RTU; or Modbus ASCII).

1.

Press the Enter button when POrt is in the A window.

2.

The Adr (address) screen displays. You can either:

• Enter the address.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 7–9

Note

USING THE FRONT PANEL CHAPTER 7: USING THE SUBMETER

NOTE

• Access one of the other Port screens by pressing the Enter button:

- Press Enter once to access the bAUd screen (Baud Rate).

- Press Enter twice to access the Prot screen (Protocol).

To enter Address:

From the Adr screen:

• Use the Down button to select the number value for a digit.

• Use the Right button to move to the next digit.

To select Baud Rate:

From the bAUd screen:

• Use the Right button or the Down button to select the setting you want.

To select Protocol:

From the Prot screen:

• Press the Right button or the Down button to select the setting you want.

If you are prompted to enter a password, refer to Section 7.2.4 for instructions on doing so.

3.

When you have finished making your selections, press the Menu button twice.

4.

The STOR ALL YES screen displays. Press Enter to save the settings.

MENU ENTER MENU ENTER

MENU ENTER

-

A

-

A

-

A

-

B

-

B

-

B

-

C

-

C

-

C

7.2.6

Using Operating Mode

Operating mode is the EPM 6100 meter's default mode, that is, its standard front panel display. After Startup, the meter automatically scrolls through the parameter screens, if scrolling is enabled. Each parameter is shown for 7 seconds, with a 1 second pause between parameters. Scrolling is suspended for 3 minutes after any button is pressed.

1.

Press the Down button to scroll all the parameters in Operating mode. The currently

"Active," i.e., displayed, parameter has the Indicator light next to it, on the right face of the meter.

2.

Press the Right button to view additional readings for that parameter. The table on the next page shows possible readings for Operating Mode. Sheet 2 in Appendix A shows the Operating Mode Navigation Map.

7–10 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 7: USING THE SUBMETER

Note

% OF LOAD BAR

NOTE

Readings or groups of readings are skipped if they are not applicable to the meter type or hookup, or if they are disabled in the programmable settings.

Table 7.1: Operating Mode Parameter Readings: Possible Readings

VOLTS L-N VOLTS_LN

VOLTS L-L VOLTS_LL

VOLTS_LN_MAX

VOLTS_LL_MAX

VOLTS_LN_MIN

VOLTS_LL_MIN

AMPS AMPS AMPS_NEUTRAL AMPS_MAX AMPS_MIN

W/VAR/PF W_VAR_PF W_VAR_PF_MAX_POS W_VAR_PF_MIN_POS W_VAR_PF_MIN_NEG

VOLTS_LN_THD

AMPS_THD

Wh KWH_REC KWH_NET KWH_TOT

VARh KVARH_POS KVARH_NET KVARH_TOT

VAh KVAH

7.3

% of Load Bar

The 10-segment LED bargraph at the bottom of the submeter display provides a graphic representation of Amps.

10

1

LM1

LM2

MIN

%THD

PRG

MAX

IrDA

120%-

90%-

60%-

30%-

%LOAD

MENU ENTER

120

.

0

120

.

0

120

.

0

A

B

VOLTS L-N

VOLTS L-N

AMPS

W/VAR/PF

VA/Hz

Wh

VARh

VAh

C

Wh Pulse

KILO

MEGA

The segments light according to the load in the %Load Segment Table below. When the

Load is over 120% of Full Load, all segments flash “On” (1.5 sec) and “Off” (0.5 sec).

Table 7.2: % Load Segment Table

Segments

None

Load >=% Full Load

No Load

1 1%

1 - 2 15%

1 - 3

1 - 4

1 - 5

30%

45%

60%

1 - 6

1 - 7

1 - 8

1 - 9

1 - 10

All Blink

72%

84%

96%

108%

120%

>120%

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 7–11

WATT-HOUR ACCURACY TESTING (VERIFICATION) CHAPTER 7: USING THE SUBMETER

7.4

Watt-Hour Accuracy Testing (Verification)

The EPM 6100 meter has a Watt-Hour Test Pulse on the face of the submeter. This is an infrared pulse that can be read easily to test for accuracy.

To be certified for revenue metering, power providers and utility companies have to verify that this billing energy submeter will perform to the stated accuracy. To confirm the submeter’s performance and calibration, power providers use field test standards to ensure that the unit’s energy measurements are correct. Since the EPM 6100 meter is a traceable revenue submeter, it contains a utility grade test pulse that can be used to gate an accuracy standard. This is an essential feature required of all billing grade meters and submeters.

LM1

LM2

MIN

MAX

%THD

PRG

IrDA

120%-

90%-

60%-

30%-

%LOAD

MENU ENTER

120

.

0

120

.

0

120

.

0

A

VOLTS L-N

VOLTS L-N

AMPS

W/VAR/PF

B

VA/Hz

Wh

VARh

VAh

C

Wh Pulse

KILO

MEGA

Watt-hour Test Pulse

Refer to the figure below for an example of how this process works.

MAX

LM2

%THD

PRG

MIN

LM1 lrDA

120%-

90%-

60%-

30%-

-

-

-

%LOAD

MENU ENTER

A

B

VOLTS L-N

VOLTS L-L

AMPS

WNARP

VA/Hz

Wh

VARh

VAh

C

Wh Pulse

KILO

MEGA

Test Pulses

Comparator

Energy Pulses

Energy

Standard

7–12

Error

Results

Figure 7-4: Using the Watt-Hour Test Pulse

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

CHAPTER 7: USING THE SUBMETER

Note

WATT-HOUR ACCURACY TESTING (VERIFICATION)

NOTE

Refer to the Table below for the Wh/Pulse Constant for Accuracy Testing.

Table 7.3: Infrared & KYZ Pulse Constants for Accuracy Testing

Voltage Level

Below 150V

Above 150V

Class 10 Models

0.2505759630

1.0023038521

Class 2 Models

0.0501151926

0.2004607704

Minimum pulse width is 40 milliseconds.

Refer to chapter 2 for Wh Pulse Specifications.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL 7–13

WATT-HOUR ACCURACY TESTING (VERIFICATION) CHAPTER 7: USING THE SUBMETER

7–14 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

GE

Grid Solutions

EPM 6100 Electronic Submeter

Appendix A: Navigation Maps for the EPM 6100 Meter

Navigation Maps for the EPM 6100 Meter

A.1 Introduction

The EPM 6100 meter can be configured and a variety of functions performed using the

Buttons on the meter face.

• An Overview of the Elements and Buttons on the meter face can be found in

Chapter 7.

• An Overview of Programming using the Buttons can be found in Chapter 8.

• The meter can also be programmed using software (see the GE Communicator

Instruction Manual).

Note

A.2 Navigation Maps (Sheets 1 to 4)

The EPM 6100 meter’s Navigation Maps begin on the next page.

They illustrate how to move from one screen to another, and from one Display Mode to another, using the buttons on the face of the meter.

After 10 minutes without user activity, the display automatically returns to Operating Mode

NOTE

EPM 6100 Meter Navigation map titles:

Main Menu Screens (Sheet 1)

Operating Mode Screens (Sheet 2)

Reset Mode Screens (Sheet 3)

Configuration Mode Screens (Sheet 4)

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL A–1

NAVIGATION MAPS (SHEETS 1 TO 4)

A.2.1 Main Menu Screens (Sheet 1)

APPENDIX A: NAVIGATION MAPS FOR THE EPM 6100 METER

STARTUP

sequence run once at meter startup:

2 lamp test screens, hardware information screen, firmware version screen, error screen (conditional) sequence completed

10 minutes with no user activity

10 minutes with no user activity

MENU

OPERATING MODE

grid of meter data screens.

See sheet 2

10 minutes with no user activity

MENU

ENTER

MENU

CONFIGURATION MODE*

grid of meter settings screens with password-protected edit capability.

See sheet 4

* Configuration Mode is not available during a

Programmable Settings update via a COM port.

ENTER

MAIN MENU:

CFG (blinking)

OPR

RST

DOWN

MAIN MENU:

OPR (blinking)

RST

CFG

DOWN

MAIN MENU:

RST (blinking)

CFG

OPR

DOWN

MAIN MENU Screen

MENU

ENTER

RESET MODE

sequence of screens to get password, if required, and reset meter data.

See sheet 3

MAIN MENU screen scrolls through 3 choices, showing all 3 at once. The top choice is always the "active" one, which is indicated by blinking the legend.

MENU

ENTER

BUTTONS

Returns to previous menu from any screen in any mode

Indicates acceptance of the current screen and advances to the next one

DOWN, RIGHT

Navigation:

Editing:

Navigation and edit buttons

No digits or legends are blinking. On a menu, down advances to the next menu selection, right does nothing. In a grid of screens, down advances to the next row, right advances to the next column. Rows, columns, and menus all navigate circularly.

A digit or legend is blinking to indicate that it is eligible for change. When a digit is blinking, down increases the digit value, right moves to the next digit. When a legend is blinking, either button advances to the next choice legend. single screen all screens for a display mode group of screens action taken button

A–2 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

APPENDIX A: NAVIGATION MAPS FOR THE EPM 6100 METER

A.2.2 Operating Mode Screens (Sheet 2)

NAVIGATION MAPS (SHEETS 1 TO 4)

VOLTS_LN

RIGHT

VOLTS_LN_

MAX

RIGHT

RIGHT

See Notes 1 & 3

VOLTS_LN_

MIN

RIGHT

DOWN 2

(from any VOLTS_LN screen)

VOLTS_LL

RIGHT

DOWN

2

RIGHT

VOLTS_LL_

MAX

RIGHT

VOLTS_LL_

MIN

VSwitches 1 - 4

DOWN

2

(from any VOLTS_LL screen)

See Note 1

RIGHT

See Note 1

AMPS_MAX

RIGHT

AMPS_MIN AMPS

RIGHT

AMPS_

NEUTRAL

RIGHT

DOWN 2

(from any AMPS screen)

DOWN 2

W_VAR_PF

RIGHT

W_VAR_PF

_MAX_POS

RIGHT

DOWN

2

RIGHT

W_VAR_PF

_MIN_POS

RIGHT

W_VAR_PF

_MAX_NEG

RIGHT

RIGHT

See Note 1

AMPS_THD

VSwitch 4

Only

See Note 1

W_VAR_PF

_MIN_NEG

DOWN

2

(from any W_VAR_PF screen)

See Notes 1 & 3

VOLTS_LN_

THD

VSwitch 4

Only

KEY:

VA_FREQ

RIGHT

RIGHT

VA_FREQ_

MAX

RIGHT

VA_FREQ_

MIN

See Note 1

VSwitches

2 - 4

VSwitches 1-4

VSwitches 2-4

VSwitches 3-4

VSwitch 4 Only

DOWN 2

(from any VA_FREQ screen)

KWH_RE C

RIGHT

KWH_DEL

RIGHT

RIGHT

KWH_NET

RIGHT

KWH_TOT

See Note 1

VSwitches 3 - 4

DOWN

2

(from any KWH screen)

RIGHT

KVARH_NEG

RIGHT

See Note 1

KVARH_TOT

KVARH_POS

RIGHT

DOWN

2

(from any KVARH screen)

See Note 1

KVAH

KVARH_NET

RIGHT

NOTES

1. Group is skipped if not applicable to the meter type or hookup, or if explicitly disabled via programmable settings.

2. DOWN occurs without user intervention every 7 seconds if scrolling is enabled.

3. No Volts_LN screens for Delta 2 CT hookup.

4. Scrolling is suspended for 3 minutes after any button press.

5. AMPS_NEUTRAL appears for WYE hookups.

MENU

(from any operating mode screen) to Main Menu

(see Main Menu for overview)

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL A–3

NAVIGATION MAPS (SHEETS 1 TO 4)

A.2.3 Reset Mode Screens (Sheet 3)

from MAIN MENU

APPENDIX A: NAVIGATION MAPS FOR THE EPM 6100 METER

ENTER

RST

ALL?

RESET_NO:

no (blinking) no

RIGHT

RIGHT

RST

RESET_YES:

ALL?

yes (blinking)

ENTER increment blinking digit is password required?

yes

DOWN

RESET_ENTER_PW:

PASS

#### (one # blinking)

RIGHT make next digit blink

2 sec reset all max & min values yes

ENTER is password correct?

no

RESET_PW_FAIL:

PASS

####

FAIL

RESET_CONFIRM:

RST

ALL

DONE

2 sec.

to previous operating mode screen see sheet 2

MENU

(from any reset mode screen) to Main Menu see sheet 1

A–4 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

APPENDIX A: NAVIGATION MAPS FOR THE EPM 6100 METER

A.2.4 Configuration Mode Screens (Sheet 4)

NAVIGATION MAPS (SHEETS 1 TO 4)

See Note 1

CONFIG_MENU:

SCRL (blinking)

CT

PT

DOWN

ENTER

SCROLL_EDIT:

SCRL yes or no

(choice blinking if edit)

DOWN or

RIGHT

3 toggle scroll setting

ENTER

MENU

CONFIG_MENU:

CT (blinking)

PT

CNCT

DOWN

CONFIG_MENU:

PT (blinking)

CNCT

PORT

DOWN

MENU

DOWN

MENU

CONFIG_MENU:

CNCT (blinking)

PORT

PASS

2

DOWN

MENU

MENU

CONFIG_MENU:

PORT (blinking)

PASS

2

SCRL

DOWN

2

MENU

2

CONFIG_MENU:

PASS

2

(blinking)

SCRL

CT

CONFIG_MENU screen scrolls through 6 choices, showing 3 at a time. The top choice is always the

"active" one, indicated by blinking the legend.

ENTER

ENTER

ENTER digit

DOWN increment blinking

CT-N

####

CTN_EDIT:

(one # blinking if edit)

RIGHT blink next digit

CTD_SHOW:

CT-D

1 or 5

CT_MULT_EDIT:

CT-S

1 or 10 or 100

(choice blinking if edit)

DOWN or

RIGHT show next choice

ENTER

ENTER

DOWN increment blinking digit

PTN_EDIT:

PT-N

####

(one # blinking if edit)

RIGHT blink next digit

ENTER

DOWN increment blinking digit

PTD_EDIT:

PT-D

####

(one # blinking if edit)

ENTER

RIGHT blink next digit

PT_MULT_EDIT:

PT-S

1 or 10 or 100 or 1000

(choice blinking if edit)

DOWN or

RIGHT show next choice

ENTER

ENTER

ENTER

CONNECT_EDIT:

CNCT

1 of 3 choices

(choice blinking if edit)

DOWN or

RIGHT show next choice

CNCT choices:

3 EL WYE,

2 CT DEL,

2.5EL WYE

PROT choices:

RTU, ASCII

ENTER

ENTER

DOWN increment blinking digit

ADDRESS_EDIT:

ADR

###

(one # blinking if edit)

RIGHT blink next digit

ENTER ENTER

BAUD_EDIT:

BAUD

##.#

(choice blinking if edit)

DOWN or

RIGHT show next choice

ENTER

2

PROTOCOL_EDIT:

PROT

1 of 3 choices

(choice blinking if edit)

DOWN or

RIGHT show next choice

ENTER

DOWN increment blinking digit

PASSWORD_EDIT:

PASS

#### (one # blinking)

RIGHT blink next digit

Notes:

1. Initial access is view-only. View access shows the existing settings. At the first attempt to change a setting (DOWN or RIGHT pressed), password is requested (if enabled) and access changes to edit. Edit access blinks the digit or list choice eligible for change and lights the PRG LED.

2. Skip over password edit screen and menu selection if access is view-only.

3. Scroll setting may be changed with view or edit access.

4. ENTER accepts an edit; MENU abandons it.

MENU any changes?

yes

SAVE_YES:

STOR

ALL?

yes (blinking)

MENU

(per row of the originating screen)

ENTER save new configuration first DOWN or RIGHT in view access (if password required)

DOWN

CFG_ENTER_PW:

PASS

### (one # blinking) increment blinking digit

ENTER

See Note 1

RIGHT blink next digit yes no

MENU

RIGHT RIGHT

SAVE_CONFIRM:

STOR

ALL

DONE is password correct?

to the originating

EDIT screen to Main Menu see sheet 1

MENU

STOR

SAVE_NO:

ALL?

no (blinking)

ENTER

2 sec.

reboot no to previous operating mode screen see sheet 2

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL A–5

NAVIGATION MAPS (SHEETS 1 TO 4) APPENDIX A: NAVIGATION MAPS FOR THE EPM 6100 METER

A–6 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

GE

Grid Solutions

EPM 6100 Electronic Submeter

Appendix B: Modbus Mapping for

EPM 6100 Meter

Modbus Mapping for EPM 6100 Meter

B.1

Introduction

The Modbus Map for the EPM 6100 meter gives details and information about the possible readings of the meter and about the programming of the meter. The EPM 6100 meter can be programmed using the buttons on the face plate of the meter (Chapter 8). The meter can also be programmed using software. For a Programming Overview, see section 5.2 of this manual. For further programming details, see the GE Communicator Instruction

Manual.

B.2

Modbus Register Map Sections

The EPM 6100 meter's Modbus Register Map includes the following sections:

Fixed Data Section, Registers 1- 47, details the Meter’s Fixed Information described in

Section 8.2.

Meter Data Section, Registers 1000 - 5003, details the Meter’s Readings, including

Primary Readings, Energy Block, Demand Block, Maximum and Minimum Blocks, THD

Block, Phase Angle Block and Status Block. Operating Mode readings are described in

Section 8.3.4.

Commands Section, Registers 20000 - 26011, details the Meter’s Resets Block,

Programming Block,

Other Commands Block and Encryption Block.

Programmable Settings Section, Registers 30000 - 30067, details the Meter’s Basic

Setups.

Secondary Readings Section, Registers 40001 - 40100, details the Meter’s Secondary

Readings Setups.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL B–1

DATA FORMATS APPENDIX B: MODBUS MAPPING FOR EPM 6100 METER

B.3

Data Formats

ASCII: ASCII characters packed 2 per register in high, low order and without any termination characters.

Example: “EPM6100” would be 4 registers containing 0x5378, 0x6172, 0x6B31,

0x3030.

SINT16/UINT16: 16-bit signed/unsigned integer.

SINT32/UINT32: 32-bit signed/unsigned integer spanning 2 registers. The lower-addressed register is the high order half.

FLOAT: 32-bit IEEE floating point number spanning 2 registers. The lower-addressed register is the high order half (i.e., contains the exponent).

B.4

Floating Point Values

Floating Point Values are represented in the following format:

Register

Byte

Bit 7

Meaning s sign

0 1

0 1 0 1

6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 e e e e e e e e m m m m m m m m m m m m m m m m m m m m m m m exponent mantissa

The formula to interpret a Floating Point Value is:

-1

sign

x 2

exponent-127

x 1.mantissa = 0x0C4E11DB9

-1

sign

x 2

137-127

x 1.11000010001110111001

-1 x 2

10

x 1.75871956

-1800.929

Register

Byte

Bit 7

1

Meaning s sign

1

0x0C4E1 0x01DB9

0x0C4 0x0E1 0x01D 0x0B9

6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0

1 0 0 0 1 0 0 1 1 1 0 0 0 0 1 0 0 0 1 1 1 0 1 1 0 1 1 1 0 0 1 e e e e e e e e m m m m m m m m m m m m m m m m m m m m m m m exponent

0x089 = 137 mantissa

0b11000010001110110111001

Formula Explanation

C4E11DB9 (hex) 11000100 11100001 00011101 10111001 (binary)

The sign of the mantissa (and therefore the number) is 1, which represents a negative value.

The Exponent is 10001001 (binary) or 137 decimal.

B–2 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

APPENDIX B: MODBUS MAPPING FOR EPM 6100 METER

Note

MODBUS REGISTER MAP

The Exponent is a value in excess 127. So, the Exponent value is 10.

The Mantissa is 11000010001110110111001 binary.

With the implied leading 1, the Mantissa is (1).C23B72 (hex).

The Floating Point Representation is therefore -1.75871956 times 2 to the 10.

NOTE

Decimal equivalent: -1800.929

Exponent = the whole number before the decimal point.

Mantissa = the positive fraction after the decimal point.

B.5

Modbus Register Map

Hex Decimal

Table B –1: Modbus Register Map (Sheet 1 of 8)

Description

1

Format

Range

6

Units or

Resolution

Comments

Fixed Data Section

Identification Block

0000 - 0007 1

0008 - 000F 9

0010 - 0010 17

- 8

- 16

- 17

0011 - 0012 18

0013 - 0013 20

0014 - 0014 21

0015 - 0015 22

0016 - 0026 23

0027 - 002E 40

- 19

- 20

- 21

- 22

- 39

- 47

Meter Name ASCII 16 char

Meter Serial Number ASCII 16 char

Meter Type UINT16 bit-mapped

Firmware Version

Map Version

ASCII 4 char

UINT16 0 to 65535

Meter Configuration UINT16 bit-mapped

ASIC Version

Reserved

GE Part Number

UINT16 0-65535

ASCII 16 char

read-only

none none

-------t -----vvv t = transducer model (1=yes,

0=no), vvv =

THD (Software)

Option 0 or THD none

1 none

-------- --ffffff ffffff = calibration frequency

(50 or 60)

2

1

1

8

8 none none

Block Size:

1

17

8

47

Primary Readings Block, 6 cycles (IEEE Floating

0383 - 0384 900 - 901 Watts, 3-Ph total

0385 - 0386 902 - 903 VARs, 3-Ph total

0387 - 0388 904 - 905 VAs, 3-Ph total

Meter Data Section

2

FLOAT -9999 M to +9999 M watts

FLOAT -9999 M to +9999 M VARs

FLOAT -9999 M to +9999 M VAs

Primary Readings Block, 60 cycles (IEEE Floating Point)

03E7 - 03E8 1000 - 1001 Volts A-N

03E9 - 03EA 1002 - 1003 Volts B-N

03EB - 03EC 1004 - 1005 Volts C-N

03ED - 03EE 1006 - 1007 Volts A-B

FLOAT 0 to 9999 M

FLOAT 0 to 9999 M

FLOAT 0 to 9999 M

FLOAT 0 to 9999 M volts volts volts volts

Block Size: read-only

read-only

2

6

2

2

2

2

2

2

e g

#

R

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL B–3

MODBUS REGISTER MAP APPENDIX B: MODBUS MAPPING FOR EPM 6100 METER

Hex Decimal

Description

1

03EF - 03F0 1008 - 1009 Volts B-C

03F1 - 03F2 1010 - 1011 Volts C-A

03F3 - 03F4 1012 - 1013 Amps A

03F5 - 03F6 1014 - 1015 Amps B

03F7 - 03F8 1016 - 1017 Amps C

03F9 - 03FA 1018 - 1019 Watts, 3-Ph total

03FB - 03FC 1020 - 1021 VARs, 3-Ph total

03FD - 03FE 1022 - 1023 VAs, 3-Ph total

03FF - 0400 1024 - 1025 Power Factor, 3-Ph total

0401 - 0402 1026 - 1027 Frequency

0403 - 0404 1028 - 1029 Neutral Current

Table B –1: Modbus Register Map (Sheet 2 of 8)

Format

Range

6

Units or

Resolution

FLOAT 0 to 9999 M

FLOAT 0 to 9999 M

FLOAT 0 to 9999 M volts volts amps

FLOAT 0 to 9999 M

FLOAT 0 to 9999 M amps amps

FLOAT -9999 M to +9999 M watts

FLOAT -9999 M to +9999 M VARs

FLOAT -9999 M to +9999 M VAs

FLOAT -1.00 to +1.00

none

FLOAT 0 to 65.00

FLOAT 0 to 9999 M

Hz amps

Comments

Block Size:

Primary Energy Block

044B - 044C 1100 - 1101 W-hours, Received

044D - 044E 1102 - 1103 W-hours, Delivered

044F - 0450 1104 - 1105 W-hours, Net

0451 - 0452 1106 - 1107 W-hours, Total

0453 - 0454 1108 - 1109 VAR-hours, Positive

SINT32 0 to 99999999 or

0 to -99999999

Wh per energy format

SINT32 0 to 99999999 or

0 to -99999999

Wh per energy format

SINT32 -99999999 to

99999999

SINT32 0 to 99999999

SINT32 0 to 99999999

Wh per energy format

Wh per energy format

VARh per energy format

* 5 to 8 digits

read-only

* Wh received & delivered always have opposite signs

* Wh received is positive for

"view as load", delivered is positive for "view as generator"

2

2

2

2

* decimal point implied, per energy format

2

0455 - 0456 1110 - 1111 VAR-hours, Negative SINT32 0 to -99999999

0457 - 0458 1112 - 1113 VAR-hours, Net

0459 - 045A 1114 - 1115 VAR-hours, Total

045B - 045C 1116 - 1117 VA-hours, Total

SINT32 -99999999 to

99999999

SINT32 0 to 99999999

SINT32 0 to 99999999

VARh per energy format

VARh per energy format

VARh per energy format

VAh per energy format

* resolution of digit before decimal point = units, kilo, or mega, per energy format

* see note 10

Block Size:

2

2

2

2

18

2

2

30

2

2

2

2

2

2

2

2

2

e g

#

R

Primary Demand Block (IEEE Floating Point)

07CF - 07D0 2000 - 2001 Amps A, Average

07D1 - 07D2 2002 - 2003 Amps B, Average

07D3 - 07D4 2004 - 2005 Amps C, Average

07D5 - 07D6 2006 - 2007 Positive Watts, 3-Ph,

Average

07D7 - 07D8 2008 - 2009 Positive VARs, 3-Ph,

Average

07D9 - 07DA 2010 - 2011 Negative Watts, 3-Ph,

Average

07DB - 07DC 2012 - 2013 Negative VARs, 3-Ph,

Average

07DD - 07DE 2014 - 2015 VAs, 3-Ph, Average

07DF - 07E0 2016 - 2017 Positive PF, 3-Ph,

Average

07E1 - 07E2 2018 - 2019 Negative PF, 3-PF,

Average

FLOAT 0 to 9999 M

FLOAT 0 to 9999 M amps amps

FLOAT 0 to 9999 M amps

FLOAT -9999 M to +9999 M watts

FLOAT -9999 M to +9999 M VARs

FLOAT -9999 M to +9999 M watts

FLOAT -9999 M to +9999 M VARs

FLOAT -9999 M to +9999 M VAs

FLOAT -1.00 to +1.00

none

FLOAT -1.00 to +1.00

none

Block Size:

read-only

2

2

2

2

2

2

2

2

2

2

20

Primary Minimum Block (IEEE Floating Point)

0BB7 - 0BB8 3000 - 3001 Volts A-N, Minimum FLOAT 0 to 9999 M

0BB9 - 0BBA 3002 - 3003 Volts B-N, Minimum FLOAT 0 to 9999 M volts volts

read-only

2

2

B–4 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

APPENDIX B: MODBUS MAPPING FOR EPM 6100 METER MODBUS REGISTER MAP

Table B –1: Modbus Register Map (Sheet 3 of 8)

Hex Decimal

Description

1

Format

Range

6

Units or

Resolution

0BBB - 0BBC 3004 - 3005 Volts C-N, Minimum FLOAT 0 to 9999 M

0BBD - 0BBE 3006 - 3007 Volts A-B, Minimum

0BBF - 0BC0 3008 - 3009 Volts B-C, Minimum

FLOAT 0 to 9999 M

FLOAT 0 to 9999 M volts volts volts

0BC1 - 0BC2 3010 - 3011 Volts C-A, Minimum FLOAT 0 to 9999 M volts

0BC3 - 0BC4 3012 - 3013 Amps A, Minimum Avg

Demand

0BC5 - 0BC6 3014 - 3015 Amps B, Minimum Avg

Demand

0BC7 - 0BC8 3016 - 3017 Amps C, Minimum Avg

Demand

0BC9 - 0BCA 3018 - 3019 Positive Watts, 3-Ph,

Minimum Avg Demand

0BCB - 0BCC 3020 - 3021 Positive VARs, 3-Ph,

Minimum Avg Demand

0BCD - 0BCE 3022 - 3023 Negative Watts, 3-Ph,

Minimum Avg Demand

0BCF - 0BD0 3024 - 3025 Negative VARs, 3-Ph,

Minimum Avg Demand

0BD1 - 0BD2 3026 - 3027 VAs, 3-Ph, Minimum

Avg Demand

FLOAT 0 to 9999 M

FLOAT 0 to 9999 M

FLOAT 0 to 9999 M

FLOAT 0 to +9999 M

FLOAT 0 to +9999 M

FLOAT 0 to +9999 M

FLOAT 0 to +9999 M

FLOAT -9999 M to +9999 M

0BD3 - 0BD4 3028 - 3029 Positive Power Factor,

3-Ph, Minimum Avg

Demand

0BD5 - 0BD6 3030 - 3031 Negative Power Factor,

FLOAT -1.00 to +1.00

FLOAT -1.00 to +1.00

3-Ph, Minimum Avg

Demand

0BD7 - 0BD8 3032 - 3033 Frequency, Minimum FLOAT 0 to 65.00

amps amps amps watts

VARs watts

VARs

VAs none none

Hz

Comments

Block Size:

Primary Maximum Block (IEEE Floating Point)

0C1B - 0C1C 3100 - 3101 Volts A-N, Maximum FLOAT 0 to 9999 M

0C1D - 0C1E 3102 - 3103 Volts B-N, Maximum FLOAT 0 to 9999 M

0C1F - 0C20 3104 - 3105 Volts C-N, Maximum FLOAT 0 to 9999 M

0C21 - 0C22 3106 - 3107 Volts A-B, Maximum FLOAT 0 to 9999 M volts volts volts volts

0C23 - 0C24 3108 - 3109 Volts B-C, Maximum FLOAT 0 to 9999 M

0C25 - 0C26 3110 - 3111 Volts C-A, Maximum FLOAT 0 to 9999 M volts volts

0C27 - 0C28 3112 - 3113 Amps A, Maximum Avg

Demand

0C29 - 0C2A 3114 - 3115 Amps B, Maximum Avg

Demand

0C2B - 0C2C 3116 - 3117 Amps C, Maximum Avg

Demand

0C2D - 0C2E 3118 - 3119 Positive Watts, 3-Ph,

Maximum Avg

Demand

0C2F - 0C30 3120 - 3121 Positive VARs, 3-Ph,

Maximum Avg

Demand

0C31 - 0C32 3122 - 3123 Negative Watts, 3-Ph,

Maximum Avg

Demand

0C33 - 0C34 3124 - 3125 Negative VARs, 3-Ph,

Maximum Avg

Demand

0C35 - 0C36 3126 - 3127 VAs, 3-Ph, Maximum

Avg Demand

0C37 - 0C38 3128 - 3129 Positive Power Factor,

3-Ph, Maximum Avg

Demand

0C39 - 0C3A 3130 - 3131 Negative Power Factor,

3-Ph, Maximum Avg

Demand

FLOAT 0 to 9999 M

FLOAT 0 to 9999 M

FLOAT 0 to 9999 M

FLOAT 0 to +9999 M

FLOAT 0 to +9999 M

FLOAT 0 to +9999 M

FLOAT 0 to +9999 M

FLOAT -9999 M to +9999 M VAs

FLOAT -1.00 to +1.00

FLOAT -1.00 to +1.00

amps amps amps watts

VARs watts

VARs none none

2

read-only

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

e g

#

R

2

34

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL B–5

MODBUS REGISTER MAP APPENDIX B: MODBUS MAPPING FOR EPM 6100 METER

Table B –1: Modbus Register Map (Sheet 4 of 8)

Hex Decimal

Description

1

Format

Range

6

0C3B - 0C3C 3132 - 3133 Frequency, Maximum FLOAT 0 to 65.00

Hz

Units or

Resolution

Comments

SINT16 -1800 to +1800

SINT16 -1800 to +1800

SINT16 -1800 to +1800

SINT16 -1800 to +1800

SINT16 -1800 to +1800

SINT16 -1800 to +1800

0.1 degree

0.1 degree

0.1 degree

0.1 degree

0.1 degree

0.1 degree

Block Size:

THD Block

7, 13

0F9F - 0F9F 4000 - 4000 Volts A-N, %THD

0FA0 - 0FA0 4001 - 4001 Volts B-N, %THD

0FA1 - 0FA1 4002 - 4002 Volts C-N, %THD

0FA2 - 0FA2 4003 - 4003 Amps A, %THD

0FA3 - 0FA3 4004 - 4004 Amps B, %THD

0FA4 - 0FA4 4005 - 4005 Amps C, %THD

0FA5 - 0FA5 4006 - 4006 Phase A Current 0th harmonic magnitude

0FA6 - 0FA6 4007 - 4007 Phase A Current 1st harmonic magnitude

0FA7 - 0FA7 4008 - 4008 Phase A Current 2nd harmonic magnitude

0FA8 - 0FA8 4009 - 4009 Phase A Current 3rd harmonic magnitude

0FA9 - 0FA9 4010 - 4010 Phase A Current 4th harmonic magnitude

0FAA - 0FAA 4011 - 4011 Phase A Current 5th harmonic magnitude

0FAB - 0FAB 4012 - 4012 Phase A Current 6th harmonic magnitude

0FAC - 0FAC 4013 - 4013 Phase A Current 7th harmonic magnitude

0FAD - 0FAD 4014 - 4014 Phase A Voltage 0th harmonic magnitude

0FAE - 0FAE 4015 - 4015 Phase A Voltage 1st harmonic magnitude

0FAF - 0FAF 4016 - 4016 Phase A Voltage 2nd harmonic magnitude

0FB0 - 0FB0 4017 - 4017 Phase A Voltage 3rd harmonic magnitude

0FB1 - 0FB8 4018 - 4025 Phase B Current

0FB9 - 0FBC 4026 - 4029 Phase B Voltage

0FBD - 0FC4 4030 - 4037 Phase C Current

0FC5 - 0FC8 4038 - 4041 Phase C Voltage

UINT16 0 to 9999, or 65535 0.1%

UINT16 0 to 9999, or 65535 0.1%

UINT16 0 to 9999, or 65535 0.1%

UINT16 0 to 9999, or 65535 0.1%

UINT16 0 to 9999, or 65535 0.1%

UINT16 0 to 9999, or 65535 0.1%

UINT16 0 to 65535 none

UINT16 0 to 65535

UINT16 0 to 65535 none none

UINT16 0 to 65535

UINT16 0 to 65535

UINT16 0 to 65535

UINT16 0 to 65535 none none none none

UINT16 0 to 65535

UINT16 0 to 65535

UINT16 0 to 65535

UINT16 0 to 65535 none none none none

UINT16 0 to 65535 none same as Phase A Current 0th to 7th harmonic magnitudes same as Phase A Voltage 0th to 3rd harmonic magnitudes same as Phase A Current 0th to 7th harmonic magnitudes same as Phase A Voltage 0th to 3rd harmonic magnitudes

Block Size:

Phase Angle Block

14

1003 - 1003 4100 - 4100 Phase A Current

1004 - 1004 4101 - 4101 Phase B Current

1005 - 1005 4102 - 4102 Phase C Current

1006 - 1006 4103 - 4103 Angle, Volts A-B

1007 - 1007 4104 - 4104 Angle, Volts B-C

1008 - 1008 4105 - 4105 Angle, Volts C-A

Block Size:

read-only

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

8

4

8

4

42

read-only

1

1

6

1

1

1

1

2

34

e g

#

R

Status Block read-only

B–6 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

APPENDIX B: MODBUS MAPPING FOR EPM 6100 METER MODBUS REGISTER MAP

Table B –1: Modbus Register Map (Sheet 5 of 8)

Hex Decimal

Description

1

1387 - 1387 5000 - 5000 Meter Status

1388 - 1388 5001 - 5001 Limits Status

7

1389 - 138A 5002 - 5003 Time Since Reset

Format

Range

6

UINT16 bit-mapped

UINT16 bit-mapped

UINT32 0 to 4294967294

Units or

Resolution

--exnpch ssssssss

87654321

87654321

4 msec

Comments

exnpch = EEPROM block OK flags (e=energy, x=max, n=min, p=programmable settings, c=calibration, h=header), ssssssss = state (1=Run,

2=Limp, 10=Prog Set

Update via buttons,

11=Prog Set Update via

IrDA, 12=Prog Set Update via COM2) high byte is setpt 1, 0=in,

1=out low byte is setpt 2, 0=in,

1=out wraps around after max count

Block Size:

1

2

4

1

e g

#

R

Commands Section

4

Resets Block

9

4E1F - 4E1F 20000 - 20000 Reset Max/Min Blocks UINT16 password

5

4E20 - 4E20 20001 - 20001 Reset Energy

Accumulators

UINT16 password

5

Meter Programming Block

55EF - 55EF 22000 - 22000 Initiate Programmable

Settings Update

55F0 - 55F0 22001 - 22001 Terminate

Programmable

Settings Update

3

55F1 - 55F1 22002 - 22002 Calculate

Programmable

Settings Checksum

3

55F2 - 55F2 22003 - 22003 Programmable

Settings Checksum

3

UINT16 password

UINT16 any value

UINT16

UINT16

5

55F3 - 55F3 22004 - 22004 Write New Password

3

UINT16 0000 to 9999

59D7 - 59D7 23000 - 23000 Initiate Meter

Firmware

Reprogramming

UINT16 password

5

Block Size:

write-only

1

1

2

read/conditional write

meter enters PS update mode meter leaves PS update mode via reset

1

1 meter calculates checksum on RAM copy of PS block

1 read/write checksum register; PS block saved in

EEPROM on write

8 write-only register; always reads zero

1

1

1

Other Commands Block

61A7 - 61A7 25000 - 25000 Force Meter Restart UINT16 password

5

Block Size: 6

read/write

causes a watchdog reset, always reads 0

1

Block Size: 1

Encryption Block

658F - 659A 26000 - 26011 Perform a Secure

Operation

UINT16

read/write

encrypted command to read password or change meter type

Block Size:

12

12

Programmable Settings Section

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL B–7

MODBUS REGISTER MAP APPENDIX B: MODBUS MAPPING FOR EPM 6100 METER

Hex Decimal

Basic Setups Block

Table B –1: Modbus Register Map (Sheet 6 of 8)

Description

1

752F - 752F 30000 - 30000 CT multiplier & denominator

7530 - 7530 30001 - 30001 CT numerator

7531 - 7531 30002 - 30002 PT numerator

UINT16 1 to 9999

UINT16 1 to 9999

7532 - 7532 30003 - 30003 PT denominator UINT16 1 to 9999

7533 - 7533 30004 - 30004 PT multiplier & hookup UINT16 bit-mapped

7534 - 7534 30005 - 30005 Averaging Method

Format

Range

6

UINT16 bit-mapped

UINT16 bit-mapped

Units or

Resolution

dddddddd mmmmmmmm none none none mmmmmmmm

MMMMhhhh

--iiiiii b----sss

Comments write only in PS update mode

high byte is denominator (1 or 5, read-only), low byte is multiplier (1, 10, or 100)

1

MMMMmmmmmmmm is

PT multiplier (1, 10, 100,

1000), hhhh is hookup enumeration (0 = 3 element wye[9S], 1 = delta 2 CTs[5S],

3 = 2.5 element wye[6S]) iiiiii = interval (5,15,30,60) b = 0-block or 1-rolling sss = # subintervals (1,2,3,4)

1

1

1

1

1

e g

#

R

7535 - 7535 30006 - 30006 Power & Energy

Format

UINT16 bit-mapped pppp--nn -eeeddd pppp = power scale (0-unit,

3-kilo, 6-mega, 8-auto) nn = number of energy digits (5-8 --> 0-3) eee = energy scale (0-unit,

3-kilo, 6-mega) ddd = energy digits after decimal point (0-6)

See note 10.

1

7536 - 7536 30007 - 30007 Operating Mode

Screen Enables

7537 - 753D 30008 - 30014 Reserved

753E - 753E 30015 - 30015 User Settings Flags

UINT16 bit-mapped

UINT16 bit-mapped

753F - 753F 30016 - 30016 Full Scale Current (for load % bargraph)

UINT16 0 to 9999

7540 - 7547 30017 - 30024 Meter Designation ASCII 16 char

00000000 eeeeeeee eeeeeeee = op mode screen rows on(1) or off(0), rows top to bottom are bits low order to high order

1

7

1 ---g--nn srp--wf- g = enable alternate full scale bargraph current

(1=on, 0=off) nn = number of phases for voltage & current screens

(3=ABC, 2=AB, 1=A, 0=ABC) s = scroll (1=on, 0=off) r = password for reset in use

(1=on, 0=off) p = password for configuration in use (1=on,

0=off) w = pwr dir (0-view as load,

1-view as generator) f = flip power factor sign

(1=yes, 0=no) none none

If non-zero and user settings bit g is set, this value replaces CT numerator in the full scale current calculation.

1

8

B–8 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

APPENDIX B: MODBUS MAPPING FOR EPM 6100 METER MODBUS REGISTER MAP

Hex Decimal

Table B –1: Modbus Register Map (Sheet 7 of 8)

Description

1

7548 - 7548 30025 - 30025 COM1 setup

7549 - 7549 30026 - 30026 COM2 setup

754A - 754A 30027 - 30027 COM2 address

754B - 754B 30028 - 30028 Limit #1 Identifier

754C - 754C 30029 - 30029 Limit #1 Out High

Setpoint

Format

Range

6

UINT16 bit-mapped

UINT16 bit-mapped

UINT16 1 to 247

UINT16 0 to 65535

SINT16 -200.0 to +200.0

Units or

Resolution

----dddd -

0100110

----dddd -pppbbb none

Comments

dddd = reply delay (* 50 msec) ppp = protocol (1-Modbus

RTU, 2-Modbus ASCII, 3-

DNP) bbb = baud rate (1-9600, 2-

19200, 4-38400, 6-57600)

1 use Modbus address as the identifier (See notes 7, 11,

1

1

1

e g

#

R

0.1% of full scale Setpoint for the "above" limit (LM1), see notes 11-12.

1

754D - 754D 30030 - 30030 Limit #1 In High

Threshold

SINT16 -200.0 to +200.0

754E - 754E 30031 - 30031 Limit #1 Out Low

Setpoint

754F - 754F 30032 - 30032 Limit #1 In Low

Threshold

7550 - 7554 30033 - 30037 Limit #2

7555 - 7559 30038 - 30042 Limit #3

755A - 755E 30043 - 30047 Limit #4

755F - 7563 30048 - 30052 Limit #5

7564 - 7568 30053 - 30057 Limit #6

7569 - 756D 30058 - 30062 Limit #7

756E - 7572 30063 - 30067 Limit #8

SINT16 -200.0 to +200.0

SINT16 -200.0 to +200.0

SINT16 same as Limit #1

SINT16

SINT16

SINT16

SINT16

SINT16

SINT16

0.1% of full scale Threshold at which "above" limit clears; normally less than or equal to the "above" setpoint; see notes 11-12.

1

0.1% of full scale Setpoint for the "below" limit (LM2), see notes 11-12.

1

0.1% of full scale Threshold at which "below" limit clears; normally greater than or equal to the

"below" setpoint; see notes

11-12.

1 same as Limit #1 same as Limit #1

Block Size:

5

5

5

68

5

5

5

5

12-Bit Block

9C40 - 9C40 40001 - 40001 System Sanity

Indicator

9C41 - 9C41 40002 - 40002 Volts A-N

9C42 - 9C42 40003 - 40003 Volts B-N

9C43 - 9C43 40004 - 40004 Volts C-N

9C44 - 9C44 40005 - 40005 Amps A

9C45 - 9C45 40006 - 40006 Amps B

9C46 - 9C46 40007 - 40007 Amps C

9C47 - 9C47 40008 - 40008 Watts, 3-Ph total

12-Bit Readings Section

UINT16 0 or 1

UINT16 2047 to 4095

UINT16 2047 to 4095

UINT16 2047 to 4095

UINT16 0 to 4095

UINT16 0 to 4095

UINT16 0 to 4095

UINT16 0 to 4095

9C48 - 9C48 40009 - 40009 VARs, 3-Ph total

9C49 - 9C49 40010 - 40010 VAs, 3-Ph total

9C4A - 9C4A 40011 - 40011 Power Factor, 3-Ph total

9C4B - 9C4B 40012 - 40012 Frequency

UINT16 0 to 4095

UINT16 2047 to 4095

UINT16 1047 to 3047

UINT16 0 to 2730 none volts volts volts amps amps amps watts

VARs

VAs none

Hz

9C4C - 9C4C 40013 - 40013 Volts A-B

9C4D - 9C4D 40014 - 40014 Volts B-C

9C4E - 9C4E 40015 - 40015 Volts C-A

UINT16 2047 to 4095

UINT16 2047 to 4095

UINT16 2047 to 4095 volts volts volts

read-only except as noted

0 indicates proper meter operation

2047= 0, 4095= +150 volts = 150 * (register -

2047) / 2047

1

1

0= -10, 2047= 0, 4095= +10 1

1

1 amps = 10 * (register - 2047)

/ 2047

1

1

0= -3000, 2047= 0, 4095=

+3000 watts, VARs, VAs =

1

1

3000 * (register - 2047) / 1

1047= -1, 2047= 0, 3047= 1

+1 pf =

(register - 2047) / 1000

0= 45 or less, 2047= 60,

2730= 65 or more

1 freq = 45 + ((register / 4095)

* 30)

2047= 0, 4095= +300 1 volts = 300 * (register -

2047) / 2047

1

1

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL B–9

MODBUS REGISTER MAP APPENDIX B: MODBUS MAPPING FOR EPM 6100 METER

Hex Decimal

Table B –1: Modbus Register Map (Sheet 8 of 8)

Description

1

9C4F - 9C4F 40016 - 40016 CT numerator

9C50 - 9C50 40017 - 40017 CT multiplier

9C51 - 9C51 40018 - 40018 CT denominator

9C52 - 9C52 40019 - 40019 PT numerator

9C53 - 9C53 40020 - 40020 PT multiplier

9C54 - 9C54 40021 - 40021 PT denominator

9C55 - 9C56 40022 - 40023 W-hours, Positive

9C57 - 9C58 40024 - 40025 W-hours, Negative

9C59 - 9C5A 40026 - 40027 VAR-hours, Positive

9C5D - 9C5E 40030 - 40031 VA-hours

9C5F - 9C5F 40032 - 40032 Neutral Current

9C60 - 9CA2 40033 - 40099 Reserved

9CA3 - 9CA3 40100 - 40100 Reset Energy

Accumulators

Format

Range

6

UINT16 1 to 9999

UINT16 1, 10, 100

UINT16 1 or 5

UINT16 1 to 9999

UINT16 1, 10, 100

UINT16 1 to 9999

UINT32 0 to 99999999

UINT32 0 to 99999999

UINT32 0 to 99999999

9C5B - 9C5C 40028 - 40029 VAR-hours, Negative UINT32 0 to 99999999

UINT32 0 to 99999999

UINT16 0 to 4095

N/A N/A

UINT16 password

5

Units or

Resolution

none none none none none none

Wh per energy format

Wh per energy format

VAh per energy format amps none

Comments

CT = numerator * multiplier

/ denominator

PT = numerator * multiplier

/ denominator

* 5 to 8 digits

* decimal point implied, per energy format

2

VARh per energy format

VARh per energy format

* resolution of digit before decimal point = units, kilo, or mega, per energy format

2

2

* see note 10 see Amps A/B/C above write-only register; always reads as 0

Block Size:

2

1

67

1

1

1

1

1

1

1

2

e g

#

R

100

Data Formats

ASCII

SINT16 / UINT16

SINT32 / UINT32

FLOAT

ASCII characters packed 2 per register in high, low order and without any termination characters.

16-bit signed / unsigned integer.

32-bit signed / unsigned integer spanning 2 registers. The lower-addressed register is the high order half.

32-bit IEEE floating point number spanning 2 registers. The lower-addressed register is the high order half (i.e.,

Notes

1 All registers not explicitly listed in the table read as 0. Writes to these registers will be accepted but won't actually change the register (since it doesn't exist).

2 Meter Data Section items read as 0 until first readings are available or if the meter is not in operating mode. Writes to these registers will be accepted but won't actually change the register.

3 Register valid only in programmable settings update mode. In other modes these registers read as 0 and return an illegal data address exception if a write is attempted.

4 Meter command registers always read as 0. They may be written only when the meter is in a suitable mode. The registers return an illegal data address exception if a write is attempted in an incorrect mode.

5 If the password is incorrect, a valid response is returned but the command is not executed. Use 5555 for the password if passwords are disabled in the programmable settings.

6 M denotes a 1,000,000 multiplier.

7 Not applicable to EPM6000, THD (Software) Option 0

8 Writing this register causes data to be saved permanently in EEPROM. If there is an error while saving, a slave device failure exception is returned and programmable settings mode automatically terminates via reset.

9 Reset commands make no sense if the meter state is LIMP. An illegal function exception will be returned.

10 Energy registers should be reset after a format change.

B–10 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

APPENDIX B: MODBUS MAPPING FOR EPM 6100 METER MODBUS REGISTER MAP

11 Entities to be monitored against limits are identified by Modbus address. Entities occupying multiple Modbus registers, such as floating point values, are identified by the lower register address. If any of the 8 limits is unused, set its identifier to zero. If the indicated Modbus register is not used or is a nonsensical entity for limits, it will behave as an unused limit.

12 There are 2 setpoints per limit, one above and one below the expected range of values. LM1 is the "too high" limit, LM2 is "too low"

The entity goes "out of limit" on LM1 when its value is greater than the setpoint. It remains "out of limit" until the value drops below the in threshold. LM2 works similarly, in the opposite direction. If limits in only one direction are of interest, set the in threshold on the

"wrong" side of the setpoint. Limits are specified as % of full scale, where full scale is automatically set appropriately for the entity being monitored:

FS = CT numerator * CT current voltage multiplier

FS = PT numerator * PT multiplier

FS = CT numerator * CT multiplier * PT numerator * PT power multiplier * 3 [ * SQRT(3) for delta hookup] frequency FS = 60 (or 50) power factor FS = 1.0

percentage FS = 100.0

angle FS = 180.0

13 THD not available shows 65535 (=0xFFFF) in all THD and harmonic magnitude registers for the channel when the THD (Software)

Option =THD. THD may be unavailable due to low V or I amplitude, or delta hookup (V only).

14 All 3 voltage angles are measured for Wye and Delta hookups. For 2.5 Element, Vac is measured and Vab & Vbc are calculated. If a voltage phase is missing, the two voltage angles in which it participates are set to zero. A and C phase current angles are measured for all hookups. B phase current angle is measured for Wye and is zero for other hookups. If a voltage phase is missing, its current angle is zero.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL B–11

MODBUS REGISTER MAP APPENDIX B: MODBUS MAPPING FOR EPM 6100 METER

B–12 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

GE

Grid Solutions

EPM 6100 Electronic Submeter

Appendix C: DNP Mapping for EPM

6100 Meter

DNP Mapping for EPM 6100 Meter

C.1

Introduction

The DNP Map for the EPM 6100 Meter shows the client-server relationship in its use of DNP

Protocol.

C.2

DNP Mapping (DNP-1 to DNP-2)

The EPM 6100 meter's DNP Point Map begins below.

Binary Output States, Control Relay Outputs, Binary Counters (Primary) and Analog

Inputs are described on Pages 1 and 2.

Internal Indication is described on Page 2.

Object Point Var Description Format

Binary Output States

10 0 2 Reset Energy Counters BYTE

10 1 2 Change to Modbus RTU

Protocol

BYTE

Range

Always 1

Always 1

N/A

N/A

Multiplier Units

none none

Comments

Read via Class 0 only

Control Relay Outputs

12 0 1 Reset Energy Counters N/A N/A

12 1 1 Change to Modbus RTU

Protocol

N/A N/A

N/A

N/A none none

Responds to Function 5

(Direct Operate), Qualifier

Code 17x or 28x, Control

Code 3, Count 0, On 0 msec,

Responds to Function 6

(Direct Operate - No Ack),

Qualifier Code 17x, Control

Code 3, Count 0, On 0 msec,

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL C–1

DNP MAPPING (DNP-1 TO DNP-2) APPENDIX C: DNP MAPPING FOR EPM 6100 METER

Object Point Var

Binary Counters (Primary)

20 0 4 W-hours, Positive

20

20

20

20

1

2

3

4

4

4

4

4

Description

W-hours, Negative

Format Range

UINT32 0 to 99999999

UINT32 0 to 99999999

VAR-hours, Positive

VAR-hours, Negative

VA-hours, Total

UINT32 0 to 99999999

UINT32 0 to 99999999

UINT32 0 to 99999999

Multiplier

multiplier = 10

(nd)

, where n and d are derived from the energy format. n = 0, 3, or 6 per energy format scale and d = number of decimal places.

W hr

W hr

VAR hr

VAR hr

VA hr

Units Comments

Read via Class 0 only example: energy format = 7.2K and Whours counter = 1234567 n=3 (K scale), d=2 ( 2 digits after decimal point), multiplier = 10

(3-2)

= 10

1

= 10, so energy is 1234567 * 10

Whrs, or 12345.67 KWhrs

Analog Inputs (Secondary)

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

30

0

18

19

16

17

20

21

22

23

24

25

26

27

28

29

30

8

9

10

11

12

13

14

15

5

6

7

3

4

1

2

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

5

Meter Health

Volts A-N

Volts B-N

Volts C-N

Volts A-B

Volts B-C

Volts C-A

Amps A

SINT16 0 or 1

SINT16 0 to 32767

SINT16 0 to 32767

SINT16 0 to 32767

SINT16 0 to 32767

SINT16 0 to 32767

SINT16 0 to 32767

SINT16 0 to 32767

N/A none

(150 / 32768) V

(150 / 32768) V

(150 / 32768) V

(300 / 32768) V

(300 / 32768) V

(300 / 32768) V

(10 / 32768) A

Amps B

Amps C

SINT16 0 to 32767

SINT16 0 to 32767

(10 / 32768)

(10 / 32768)

A

A

Watts, 3-Ph total

VARs, 3-Ph total

SINT16 -32768 to +32767 (4500 / 32768) W

SINT16 -32768 to +32767 (4500 / 32768) VAR

VAs, 3-Ph total SINT16 0 to +32767 (4500 / 32768) VA

Power Factor, 3-Ph total SINT16 -1000 to +1000 0.001

none

Frequency

Positive Watts, 3-Ph,

Maximum Avg Demand

SINT16 0 to 9999 0.01

Hz

SINT16 -32768 to +32767 (4500 / 32768) W

Positive VARs, 3-Ph,

Maximum Avg Demand

SINT16 -32768 to +32767 (4500 / 32768) VAR

Negative Watts, 3-Ph,

Maximum Avg Demand

SINT16 -32768 to +32767 (4500 / 32768) W

Negative VARs, 3-Ph,

Maximum Avg Demand

SINT16 -32768 to +32767 (4500 / 32768) VAR

VAs, 3-Ph, Maximum

Avg Demand

SINT16 -32768 to +32767 (4500 / 32768)

Angle, Phase A Current SINT16 -1800 to +1800 0.1

Angle, Phase B Current SINT16 -1800 to +1800 0.1

Angle, Phase C Current SINT16 -1800 to +1800 0.1

Angle, Volts A-B SINT16 -1800 to +1800 0.1

Angle, Volts B-C

Angle, Volts C-A

SINT16

SINT16

-1800 to +1800

-1800 to +1800

0.1

0.1

CT numerator

CT multiplier

SINT16 1 to 9999

SINT16 1, 10, or 100

N/A

N/A

VA degree degree degree degree degree degree none none

CT denominator

PT numerator

PT multiplier

SINT16 1 or 5

SINT16 1 to 9999

SINT16 1, 10, or 100

N/A

N/A

N/A none none none

Read via Class 0 only

0 = OK

Values above 150V secondary read 32767.

Values above 300V secondary read 32767.

Values above 10A secondary read 32767.

CT ratio =

(numerator * multiplier) / denominator

PT ratio =

(numerator * multiplier) / denominator

C–2 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

APPENDIX C: DNP MAPPING FOR EPM 6100 METER DNP MAPPING (DNP-1 TO DNP-2)

Object Point Var

30 31 5

30 32 5

Description

PT denominator

Neutral Current

Format Range

SINT16 1 to 9999

SINT16 0 to 32767

N/A

Multiplier

(10 / 32768)

Units

none

A

Comments

For 1A model, multiplier is (2 /

32768) and values above 2A secondary read 32767.

Internal Indication

80 0 1 Device Restart Bit N/A N/A N/A none Clear via Function 2 (Write),

Qualifier Code 0.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL C–3

DNP MAPPING (DNP-1 TO DNP-2) APPENDIX C: DNP MAPPING FOR EPM 6100 METER

C–4 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

GE

Grid Solutions

EPM 6100 Electronic Submeter

Appendix D: DNP 3.0 Protocol

Assignments for EPM

6100 Meter

DNP 3.0 Protocol Assignments for EPM 6100 Meter

D.1 DNP Implementation

Physical Layer

The EPM 6100 meter is capable of using RS485 as the physical layer. This is accomplished by connecting a PC to the EPM 6100 meter with the RS485 connection on the face of the submeter.

RS485

RS485 provides multi-drop network communication capabilities. Multiple submeters may be placed on the same bus, allowing for a Master device to communicate with any of the other devices.

Appropriate network configuration and termination should be evaluated for each installation to insure optimal performance.

Communication Parameters

EPM 6100 meters communicate in DNP 3.0 using the following communication settings:

• 8 Data Bits

• No Parity

• 1 Stop Bit

Baud Rates

EPM 6100 meters are programmable to use several standard baud rates, including:

• 9600 Baud

• 19200 Baud

• 38400 Baud

• 57600 Baud

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL D–1

DATA LINK LAYER APPENDIX D: DNP 3.0 PROTOCOL ASSIGNMENTS FOR EPM 6100 METER

D.2 Data Link Layer

The Data Link Layer as implemented on EPM 6100 submeters is subject to the following considerations:

Control Field

The Control Byte contains several bits and a Function Code. Specific notes follow.

Control Bits

Communication directed to the submeter should be Primary Master messages (DIR =

1, PRM = 1).

Response will be primary Non-Master messages (DIR = 0, PRM = 1). Acknowledgment will be Secondary Non-Master messages (DIR = 0, PRM = 0).

Function Codes

EPM 6100 meters support all of the Function Codes for DNP 3.0. Specific notes follow.

Reset of Data Link (Function 0)

Before confirmed communication with a master device, the Data Link Layer must be reset. This is necessary after a submeter has been restarted, either by applying power to the submeter or reprogramming the submeter. The submeter must receive a RESET command before confirmed communication may take place. Unconfirmed communication is always possible and does not require a RESET.

User Data (Function 3)

After receiving a request for USER DATA, the submeter will generate a Data Link

CONFIRMATION, signaling the reception of that request, before the actual request is processed. If a response is required, it will also be sent as UNCONFIRMED USER DATA.

Unconfirmed User Data (Function 4)

After receiving a request for UNCONFIRMED USER DATA, if a response is required, it will be sent as UNCONFIRMED USER DATA.

Address

DNP 3.0 allows for addresses from 0 - 65534 (0x0000 - 0xFFFE) for individual device identification, with the address 65535 (0xFFFF) defined as an all stations address. EPM

6100 submeters' addresses are programmable from 0 - 247 (0x0000 - 0x00F7) and will recognize address 65535 (0xFFFF) as the all stations address.

D.3 Transport Layer

The Transport Layer as implemented on EPM 6100 submeters is subject to the following considerations:

Transport Header

Multiple-frame messages are not allowed for EPM 6100 meters. Each Transport Header should indicate it is both the first frame (FIR = 1) as well as the final frame (FIN = 1).

D–2 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

APPENDIX D: DNP 3.0 PROTOCOL ASSIGNMENTS FOR EPM 6100 METER APPLICATION LAYER

D.4 Application Layer

The Application Layer contains a header (Request or Response Header, depending on direction) and data. Specific notes follow.

Application Headers

Application Headers contain the Application Control Field and the Function Code.

Application Control Field

Multiple-fragment messages are not allowed for EPM 6100 meters. Each Application

Header should indicate it is both the first fragment (FIR = 1) as well as the final fragment

(FIN = 1).

Application-Level confirmation is not used for EPM 6100 meters.

Function Codes

The following Function codes are implemented on EPM 6100 meters.

Read (Function 1)

Objects supporting the READ function are:

• Binary Outputs (Object 10)

• Counters (Object 20)

• Analog Inputs (Object 30)

• Class (Object 60)

These Objects may be read either by requesting a specific Variation available as listed in this document, or by requesting Variation 0. READ request for Variation 0 of an

Object will be fulfilled with the Variation listed in this document.

Write (Function 2)

Objects supporting the WRITE function are:

• Internal Indications (Object 80)

Direct Operate (Function 5)

Objects supporting the DIRECT OPERATE function are:

• Control Relay Output Block (Object 12)

Direct Operate - No Acknowledgment (Function 6)

Objects supporting the DIRECT OPERATE - NO ACKNOWLEDGMENT function are:

• Change to MODBUS RTU Protocol

Response (Function 129)

Application responses from EPM 6100 meters use the RESPONSE function.

Application Data

Application Data contains information about the Object and Variation, as well as the

Qualifier and Range.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL D–3

APPLICATION LAYER APPENDIX D: DNP 3.0 PROTOCOL ASSIGNMENTS FOR EPM 6100 METER

D.4.1 Object and Variation

The following Objects and Variations are supported on EPM 6100 meters:

• Binary Output Status (Object 10, Variation 2) †

• Control Relay Output Block (Object 12, Variation 1)

• 32-Bit Binary Counter Without Flag (Object 20, Variation 5) †

• 16-Bit Analog Input Without Flag (Object 30, Variation 4) †

• Class 0 Data (Object 60, Variation 1) †

• Internal Indications (Object 80, Variation 1)

† READ requests for Variation 0 will be honored with the above Variations.

Binary Output Status (Obj. 10, Var. 2)

Binary Output Status supports the following functions:

Read (Function 1)

A READ request for Variation 0 will be responded to with Variation 2.

Binary Output Status is used to communicate the following data measured by EPM 6100 submeters:

Energy Reset State

Change to MODBUS RTU Protocol State

Energy Reset State (Point 0)

EPM 6100 meters accumulate power generated or consumed over time as Hour

Readings, which measure positive VA Hours and positive and negative W Hours and

VAR Hours. These readings may be reset using a Control Relay Output Block object

(Obj. 12). This Binary Output Status point reports whether the Energy Readings are in the process of being reset, or if they are accumulating. Normally, readings are being accumulated and the state of this point is read as '0'. If the readings are in the process of being reset, the state of this point is read as '1'.

Change to Modbus RTU Protocol State (Point 1)

EPM 6100 meters are capable of changing from DNP Protocol to Modbus RTU

Protocol. This enables the user to update the Device Profile of the submeter. This does not change the Protocol setting. A submeter reset brings you back to DNP. Status reading of "1" equals Open, or de-energized. A reading of "0" equals Closed, or energized.

Control Relay Output Block (Obj. 12, Var. 1)

Control Relay Output Blocks support the following functions:

Direct Operate (Function 5)

Direct Operate - No Acknowledgment (Function 6)

Control Relay Output Blocks are used for the following purposes:

Energy Reset

Change to MODBUS RTU Protocol

Energy Reset (Point 0)

D–4 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

APPENDIX D: DNP 3.0 PROTOCOL ASSIGNMENTS FOR EPM 6100 METER APPLICATION LAYER

EPM 6100 meters accumulate power generated or consumed over time as Hour

Readings, which measure positive VA Hours and positive and negative W Hours and

VAR Hours. These readings may be reset using Point 0.

Use of the DIRECT OPERATE (Function 5) function will operate only with the settings of

Pulsed ON (Code = 1 of Control Code Field) once (Count = 0x01) for ON 1 millisecond and OFF 0 milliseconds.

Change to Modbus RTU Protocol (Point 1)

EPM 6100 Meters are capable of changing from DNP Protocol to Modbus RTU Protocol.

This enables the user to update the Device Profile of the submeter. This does not change the Protocol setting. A submeter reset brings you back to DNP.

Use of the DIRECT OPERATE - NO ACKNOWLEDGE (Function 6) function will operate only with the settings of Pulsed ON (Code = 1 of Control Code Field) once (Count = 0x01) for ON 1 millisecond and OFF 0 milliseconds.

32-Bit Binary Counter Without Flag (Obj. 20, Var. 5)

Counters support the following functions:

Read (Function 1)

A READ request for Variation 0 will be responded to with Variation 5.

Counters are used to communicate the following data measured by EPM 6100 submeters:

Hour Readings

Hour Readings (Points 0 - 4)

Point Readings Unit

These readings may be cleared by using the Control Relay Output Block.

16-Bit Analog Input Without Flag (Obj. 30, Var. 4)

Analog Inputs support the following functions:

Read (Function 1)

A READ request for Variation 0 will be responded to with Variation 4.

Analog Inputs are used to communicate the following data measured by EPM 6100 submeters:

• Health Check

• Phase-to-Neutral Voltage

• Phase-to-Phase Voltage

• Phase Current

• Total Power

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL D–5

APPLICATION LAYER

D–6

APPENDIX D: DNP 3.0 PROTOCOL ASSIGNMENTS FOR EPM 6100 METER

• Three Phase Total VAs

• Three Phase Power Factor Total

• Frequency

• Three Phase +Watts Max Avg Demand

• Three Phase + VARs Max Avg Demand

• Three Phase -Watts Max Avg Demand

• Three Phase -VARs Max Avg Demand

• Three Phase VAs Max Avg Demand

• Angle, Phase Power

• Angle, Phase-to-Phase Voltage

• CT Numerator, Multiplier, Denominator

• PT Numerator, Multiplier, Denominator

Health Check (Point 0)

The Health Check point is used to indicate problems detected by the EPM 6100 submeter. A value of zero (0x0000) indicates the submeter does not detect a problem. Non-zero values indicate a detected anomaly.

Phase-to-Neutral Voltage (Points 1 - 3)

Point Reading

1 Phase AN Voltage

3 Phase CN Voltage

These points are formatted as 2's complement fractions. They represent a fraction of a 150

V Secondary input. Inputs of above 150 V Secondary will be pinned at 150 V Secondary.

Phase-to-Phase Voltage (Points 4 - 6)

Point Reading

5

6

Phase BC Voltage

Phase CA Voltage

These points are formatted as 2's complement fractions. They represent a fraction of a 300

V Secondary input. Inputs of above 300 V Secondary will be pinned at 300 V Secondary.

Phase Current (Points 7 - 9)

Point Reading

7 Phase A Current

8

9

Phase B Current

Phase C Current

These points are formatted as 2's complement fractions. They represent a fraction of a 10

A Secondary input. Inputs of above 10A Secondary will be pinned at 10 A Secondary.

Total Power (Points 10 - 11)

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

APPENDIX D: DNP 3.0 PROTOCOL ASSIGNMENTS FOR EPM 6100 METER APPLICATION LAYER

Point Reading

These points are formatted as 2's complement fractions. They represent a fraction of 4500

W Secondary in normal operation, or 3000 W Secondary in Open Delta operation. Inputs above/below +/-4500 or +/-3000 W Secondary will be pinned at +/-4500 or +/-3000 W

Secondary, respectively.

Total VA (Point 12)

This point is formatted as a 2's complement fraction. It represents a fraction of 4500 W

Secondary in normal operation, or 3000 W Secondary in Open Delta operation. Inputs above/below +/-4500 or +/-3000 W Secondary will be pinned at +/-4500 or +/-3000 W

Secondary, respectively.

Point Reading

Power Factor (Point 13)

Point Reading

13 Power Factor Total

This point is formatted as a 2's complement integer. It represents Power Factors from -

1.000 (0x0FC18) to +1.000 (0x003E8). When in Open Delta operation, Total Power Factor

(Point 13) is always zero.

Frequency (Point 14)

Point Reading

14 Frequency

This point is formatted as a 2's complement fraction. It represents the Frequency as measured on Phase A Voltage in units of cHz (centiHertz, 1/100 Hz). Inputs below 45.00 Hz are pinned at 0 (0x0000), while inputs above 75.00 Hz are pinned at 9999 (0x270F).

Maximum Demands of Total Power (Points 15 - 19)

Point Reading

15 Maximum Positive Demand Total Watts

16

17

Maximum Positive Demand Total VARs

Maximum Negative Demand Total Watts

18

19

Maximum Negative Demand Total VARs

Maximum Average Demand VA

These points are formatted as 2's complement fractions. They represent a fraction of 4500

W Secondary in normal operation, or 3000 W Secondary in Open Delta operation. Inputs above/below +/-4500 or +/-3000 W Secondary will be pinned at +/-4500 or +/-3000 W

Secondary, respectively.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL D–7

APPLICATION LAYER

Note

APPENDIX D: DNP 3.0 PROTOCOL ASSIGNMENTS FOR EPM 6100 METER

Phase Angle (Points 20 - 25)

Point Reading

20

21

22

Phase A Current Angle

Phase B Current Angle

Phase C Current Angle

24

25

Volts B-C Angle

Volts C-A Angle

These points are formatted as 2's complement integers. They represent angles from

180.0°(0x0F8F8) to +180.0° (0x00708).

CT & PT Ratios (Points 26 - 31)

Point Value

NOTE

29

30

31

PT Ratio Numerator

PT Ratio Multiplier

PT Ratio Denominator

These points are formatted as 2's complement integers. They can be used to convert from units in terms of the Secondary of a CT or PT into units in terms of the Primary of a CT or PT.

The ratio of Numerator divided by Denominator is the ratio of Primary to Secondary.

EPM 6100 submeters typically use Full Scales relating Primary Current to 5 Amps and

Primary Voltage to 120 V. However, these Full scales can range from mAs to thousands of kAs, or mVs, to thousands of kVs. Following are example settings.

CT Example Settings:

200 Amps: Set the Ct-n value for 200 and the Ct-S value for 1.

800 Amps: Set the Ct-n value for 800 and the Ct-S value for 1.

2,000 Amps: Set the Ct-n value for 2000 and the Ct-S value for 1.

10,000 Amps: Set the Ct-n value for 1000 and the Ct-S value for 10.

CT Denominator is fixed at 5 for 5 ampere unit.

CT Denominator is fixed at 1 for 1 ampere unit.

PT Example Settings:

277 Volts (Reads 277 Volts): Pt-n value is 277, Pt-d value is 277, Pt-S value is 1.

120 Volts (Reads 14,400 Volts): Pt-n value is 1440, Pt-d value is 120, Pt-S value is 10.

69 Volts (Reads 138,000 Volts): Pt-n value is 1380, Pt-d value is 69, Pt-S value is 100.

115 Volts (Reads 347,000 Volts): Pt-n value is 3450, Pt-d value is 115, Pt-S value is 100.

69 Volts (Reads 347,000 Volts): Pt-n value is 345, Pt-d value is 69, Pt-S value is 1000.

D–8 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

APPENDIX D: DNP 3.0 PROTOCOL ASSIGNMENTS FOR EPM 6100 METER APPLICATION LAYER

Class 0 Data (Obj. 60, Var. 1)

Class Data support the following functions:

Read (Function 1)

A request for Class 0 Data from a EPM 6100 submeter will return three Object Headers.

Specifically, it will return 16-Bit Analog Input Without Flags (Object 30, Variation 5),

Points 0 - 31, followed by 32-Bit Counters Without Flags (Object 20, Variation 4), Points

0 - 4, followed by Binary Output Status (Object 10, Variation 2), Points 0 - 1. (There is NO

Object 1.)

A request for Object 60, Variation 0 will be treated as a request for Class 0 Data.

Internal Indications (Obj. 80, Var. 1)

Internal Indications support the following functions:

Write (Function 2)

Internal Indications may be indexed by Qualifier Code 0.

Device Restart (Point 0)

This bit is set whenever the submeter has reset. The polling device may clear this bit by

Writing (Function 2) to Object 80, Point 0.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL D–9

APPLICATION LAYER APPENDIX D: DNP 3.0 PROTOCOL ASSIGNMENTS FOR EPM 6100 METER

D–10 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

GE

Grid Solutions

EPM 6100 Electronic Submeter

Appendix E: Manual Revision

History

E.1

Release Notes

Manual Revision History

MANUAL

GEK-113637

GEK-113637A

Table E–1: Release Dates

GE PART NO.

1601-0034-A1

1601-0034-A2

RELEASE DATE

February 2012

January 2016

Table E–2: Major Updates for 1601-0035-A2

DESCRIPTION SECT

(A1)

Title

Cover

SECT

(A2)

Title

Cover

Ch2

Ch4

AppE

N/A

Ch2

Ch4

AppE

N/A

Manual part number to 1601-0034-A2

Updated format and front matter.

Rebranded with Grid Solutions.

Updated 2.2 Specifications, Environmental Rating, Storage and Operating

Updated wiring diagrams.

Removed and replaced Appendix E

Corrections and minor updates throughout.

EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL E–1

RELEASE NOTES APPENDIX E: MANUAL REVISION HISTORY

E–2 EPM 6100 ELECTRONIC SUBMETER INSTRUCTION MANUAL

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