Veris H8163-CB Installation Instructions

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the user will be required to correct the interference at his own expense.

POWER MONITORING

INSTALLATION GUIDE

H8163 - CB

DANGER

HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH

• Follow safe electrical work practices. See NFPA 70E in the USA, or applicable local codes.

• This equipment must only be installed and serviced by qualiﬁed electrical personnel.

• Read, understand and follow the instructions before installing this product.

• Turn oﬀ all power supplying equipment before working on or inside the equipment.

• Use a properly rated voltage sensing device to conﬁrm power is oﬀ. DO NOT DEPEND ON THIS PRODUCT FOR VOLTAGE INDICATION

• Only install this product on insulated conductors.

Failure to follow these instructions will result in death or serious injury.

H8163 - CB

Modbus Communication Board

for the H81xx Energy Meter

Installer Speciﬁcations

Communication Protocols Modbus RTU

Connection:

RS-485 Up to 63 devices 2-wire or 4-wire Field selectable Baud Rate 2400, 4800, 9600, 19200 baud, select able Parity None/Odd/Even, selectable Address Range DIP switch selectable (1-63)

External Inputs:

Demand Syncronizing or Pulse Counting Field selectable

Wiring:

Terminal Block Screw Torque 0.37 ft-lb (0.5 N·m) nominal/0.44 ft-lb (0.6 N·m) max. Terminal Block Wire Size 26 to 14 AWG (0.13 to 2.08 mm2)

Environmental Conditions:

Operating Temperature 0° to 50°C (32° to 122°F) Storage Temperature -40° to 70°C (-4 0° to 158°F) Humidity Range 0 to 95% RH (non-condensing) Altitude of Operation 0-2000 m Agency Approvals UL 3111 Cat. III pollution degree 2

QUICK INSTALL

Observe precautions for handling static sensitive devices to avoid damage to the circuitry that is not covered under the factory warranty.

1. Disconnect power to the meter.

NOTICE

2. Set the DIP switches for appropriate network addressing.

• This product is not intended for life or safety applications.

• Do not install this product in hazardous or classiﬁed locations.

• The installer is responsible for conformance to all applicable codes.

• Mount this product inside a suitable ﬁre and electrical enclosure.

FCC PART 15 INFORMATION NOTE: This equipment has been tested by the manufacturer and found

to comply with the limits for a class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case

Modiﬁcations to this product without the express authorization of Veris Industries nullify this statement.

PRODUCT IDENTIFICATION

H8163-CB Modbus Communication Board for H81xx Energy Meter

Alta Labs, Enercep t, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘ V’ logo are trademark s or registered tradema rks of Veris Industries, L.L .C. in the USA and /or other count ries.

3. Wire the communications terminals for 2-wire or 4-wire communication.

4. Disconnect power to the energy meter. Discharge static using an anti-static or grounding strap.

5. Still using the anti-static strap, install the H8163-CB into the slot in the energy meter until the board clicks into place.

6. Restore power to the meter.

TABLE OF CONTENTS

Operation 2

Data Output Specications 2

Product Diagram 2

Conguration 3

RS-485 Communications Setup 3

Wiring 4

Installing the H8163-CB in the Energy Meter 5

Modbus Address Setup 6

Modbus Point Map 7

Multiplier Table 10

Divisor Table 11

Notes 12

H8163-CB

1 2 3 4 5 6

1 2

TX RX

9 10

ALIVE

LITHIUM BATTERY

INSTALLATION GUIDE

OPERATION

The H8163-CB energy meter communication board is an optional eld-installable board for the H8163 energy meter that allows Modbus RTU communication. The H8163-CB also enables the energy meter to provide true kW & kVAR demand information.

The easy-to-install H8163-CB provides a simple, cost-eective way to network the H8163 energy meter on a Modbus network.

PRODUCT DIAGRAM

DATA OUTPUT SPECIFICATIONS*

kWh, Consumption kW, Real power kVAR, Reactive power kVA, Apparent power Power fac tor Voltage, line to line Voltage, line to neutral Amps, Average current kW, Real Power ØA kW, Real Power ØB kW, Real Power ØC Power factor ØA Power factor ØB Power factor ØC

* See the Modbus Point Map on w ww.veris.com for a full list of data input /output features.

Voltage, ØA to ØB Voltage, ØB to ØC Voltage, ØA to ØC Voltage, ØA to Neutral Voltage, ØB to Neutral Voltage, ØC to Neutral Amps, Current ØA Amps, Current ØB Amps, Current ØC kW, Demand kVAR, Demand kW, Peak Demand kVAR, Peak Demand

CAUTION! Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type. Dispose of used batteries according to applicable environmental laws.

1. RS-485 LED (TX): Red LED; blinks to indicate data transmission from the H8163-

CB to the master.

8. Communication DIP Switches: Use these DIP switches to set the H8163-CB wiring type, baud rate, and parity. See “Setting the Communication DIP Switches” on page 3 for instructions.

2. RS-485 LED (RX): Red LED; blinks to indicate data reception from the master to

the H8163-CB.

9. RS-485 Communication Terminals: Insert the RS-485 connector into these terminals. See Wiring Diagrams on page 4 for instructions on wiring the connector

3. LED from Main Board (RX): Green LED; blinks to indicate data reception from

for 2-wire or 4-wire communications.

the main board.

10. Input Connector: Use this terminal as the input connector for “end of demand

4. LED from Main Board (TX): Green LED; blinks to indicate data transmission to

the main board.

5. ALIVE LED: Green LED; should blink once per second to indicate normal operation.

6. Network Address DIP Switches: Use these DIP switches to set the network

address for the H8163-CB. See the Settings table on page 3 for more information.

7. Connection to Energy Meter: Install the H8163-CB in the energy meter by

inserting this connector into the connection slot at the top of the energy meter.

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interval” signal from the utility or other source. Use an interposing isolated relay as the dry contac t for this terminal, as pictured below.

H8163-CB

WiringBaud Parit

Red

Black

Gray

Use 14-24 gauge wire

CONFIGURATION

This section describes the communications settings you must make to the H8163-CB. When daisy-chaining Modbus devices, follow these guidelines:

• Connect up to 63 H8163-CB devices on a single daisy chain.

• Each H8163-CB device on the daisy chain must have a unique address.

Before connecting the H8163-CB to the RS-485 communication wires, set the address according to directions on this page.

• Set the wiring type, baud rate, and parity according to directions in “Selecting Wiring Type, Baud Rate, and Parity Settings” on this page. The settings for each H8163-CB must match the other devices on its daisy chain.

• For RS-485 cables, use shielded, twisted-pair wire (Belden Cable 1120A or equivalent).

• Terminate the last device on the daisy chain to ensure reliable communication per the RS-485 standard (120 Ω nominal impedence).

Selecting The Network Address DIP Switches

Use the network address DIP switches to select the network address. Each H8163-CB on a daisy chain must have a unique network address (from 1 to 63). Devices with the same address as another on the chain will be unable to communicate.

Always set the address before you install the H8163-CB in the energy meter and before you connect the energy meter to the daisy chain.

Each of the six DIP switches has a unique address value. The Modbus Addressing section on page 6 lists DIP switch positions for specic addresses.

INSTALLATION GUIDE

Setting the Communication DIP Switches

Switch 1 is unused. Always leave it in the OFF position.

This example illustrates the default switch settings for a 2-wire device that uses 9600 baud rate with no p arit y.

RS-485 COMMUNICATIONS SETUP

Daisy Chain Maximum Distances

The maximum number of devices allowed on a single daisy chain is determined by combining the baud rate, the length of the daisy chain, and the types of RS-485 devices (2-wire/4-wire) on the chain. The RS-485 interface will support daisy chains that fall within the specications shown below.

4-Wire Daisy Chain Maximum Distances

Baud Rate Maximum Distances

1-16 Devices 17-32 Devices

2400 10,000 ft. (3048 m) 5000 ft. (1524 m)

4800 10,000 ft. (3048 m) 5000 ft. (1524 m)

9600 10,000 ft. (3048 m) 4000 ft. (1219 m)

19200 5000 ft. (1524 m) 2500 ft. (762 m)

Network Address DIP Switch Values

Switch Value

1 1

2 2

3 4

4 8

5 16

6 32

Selecting Wiring, Baud Rate, and Parity Settings

Parameter Switch Number and Setting

1 2 3 4 5 6

Wire Type

Baud Rate

Parity

2-wire - On

4-wire - O

2400 - O O

4800 - On O

9600 - O On

19200 - On On

None - O O

Even - On O

Odd - On On

2-Wire Daisy Chain Maximum Distances

Baud Rate Maximum Distances

1-8 Devices 9-16 Devices

2400 10,000 ft. (3048 m) 5000 ft. (1524 m)

4800 10,000 ft. (3048 m) 5000 ft. (1524 m)

9600 10,000 ft. (3048 m) 4000 ft. (1219 m)

19200 5000 ft. (1524 m) 2500 ft. (762 m)

Wiring the Connector

1. Remove the connector from the RS-485 communication terminals of the H8163CB.

2. Wire the communications connector as shown on page 4 (2-wire or 4-wire communication). The wire type set ting in the communication DIP switch must match this wiring type.

3. Use a small, at-blade screwdriver to tighten the connector screws. Apply the correct torque: 0.37-0.44 ft·lb (0.5-0.6 N·m).

4. Replace the connector on the RS-485 communication terminals of the H8163-CB.

5. If the H8163-CB is the last device in a daisy chain, terminate it to ensure reliable communication per the RS-485 standard (120 Ω nominal impedence).

0.37–0.44 ft•lb (0.5–0.6 N•m)

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WIRING

TX+

SHLD

TX+

RX+

TX–

RX–

TX–

SHIELD

123456

123 456

TX RX RX ALIVE

SHLD

TX-/RX-

TX+/RX+

TX-TX+

TX+

SHLD

TX+

RX+

TX–

RX–

TX–

MASTER SLAVE

123456

TX RX RX ALIVE

SHLD

TX-/RX-

TX+/RX+

TX-TX+

TX+

SHLD

TX+

RX+

TX–

RX–

TX–

TX+

SHLD

RX+

RX–

TX–

TX+

SHLD

TX+

RX+

TX–

RX–

TX–

SHIELD

RX-

RX+

TX-

TX+

MASTER SLAVESLAVE

H8163-CB

INSTALLATION GUIDE

2-Wire Communications *

4-Wire Communications *

* If the H8163-CB is the last device in a daisy cha in, terminate it to ensure reliable communication per the RS-485 standa rd (120 Ω nominal impedence).

Alta Labs, Enercep t, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘ V’ logo are trademark s or registered tradema rks of Veris Industries, L.L .C. in the USA and /or other count ries.

H8163-CB

SLOTS

TOP

COMMS BOARD

BATTERY

CONNECTORS

CONNECTION SLOTS

1 2

TX RX

ALIVE

D5 D6 D13 D14 D1

INSTALLING THE H8163-CB IN THE ENERGY METER

Complete the Communications Setup and Wiring instructions before installing the board inside the meter.

The H8163-CB is designed as a plug-and-play accessory for the H8163 energy meter. Follow these instructions to install the H8163-CB into the energy meter.

1. Turn o all power to the energy meter and the equipment in which it is installed.

INSTALLATION GUIDE

a. Remove the voltage terminal from the energy meter and all fuses.

b. Always use a properly rated voltage sensing device to conrm that power is o.

2. To discharge static, follow the instructions that come with your anti-static or grounding strap. We recommend using an anti-static or grounding strap until the installation is complete.

3. Slide the H8163-CB into the slot in the H8163 housing. The sides of the H8163CB slide down into the channels on either side of the energy meter. When the male connection to the H8163 board clicks into place, the H8163-CB is properly installed.

4. Insert the communication terminal onto the RS-485 communication terminals.

5. If the demand subinterval feature is used, wire into the end of demand subinterval terminal.

6. Replace the voltage terminal into the energy meter.

TROUBLESHOOTING

If communications are not working properly, rst check that the board is properly seated in its slot in the energy meter, and that the connector has clicked into place in the connection slot on the meter.

There are ve LEDs that indicate various types of communication.

Observe precautions for handling static sensitive devices to avoid damage to the circuitry that is not covered under the factory warranty.

During normal operation, all ve LEDs will blink regularly. When an error occurs, the abnormal LED will help determine where that error is.

LED

LED Description Abnormal Operation Solution

Number

1 RS-485 (TX) Not blinking No communication from the H8163 to the master.

· Check the wiring; TX+/TX- and RX+/RX- may be reversed. Correct the wiring.

· If RX is blinking, verify the DIP switch address, parity, baud rate, and wire type.

2 RS-485 (RX) Not blinking No communication from the master. The RX+/RX- may be reversed. Correct the wiring.

3 From main board (RX) Not blinking Main board not responding. Contact customer support for assistance.

4 From main board (TX) Not blinking but “Alive”

5 “Alive” status Steadily lit Internal communications board diagnostic event. Contact customer support for assistance.

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LED is blinking

Internal communications board diagnostic event. Contact customer support for assistance.

H8163-CB

33 34 35 36 37 38 39 40 41 42 43

44 45 46 47 48 49 50 51 52 53 54

55 56 57 58 59 60 61 62 63

22 23 24 25 26 27 28 29 30 31

12 13 14 15 16 17 18 19 20 21

1 234 5 678 910

INSTALLATION GUIDE

MODBUS ADDRESS SETUP

The gure below illustrates the network address DIP switch settings for each network address. See “Selecting the Network Address DIP Switches” on page 3 for instructions on setting the switches.

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H8163-CB

INSTALLATION GUIDE

MODBUS POINT MAP

Int Float R/W NV Model Description Notes

1 257/258 R NV Energy Consumption, kWh, Low-word integer

2 259/260 R NV Energy Consumption, kWh, High-word integer

3 261/262 R Real Power, kW

4 263/264 R Reactive Power, kVAR

5 265/266 R Apparant Power, kVA

6 267/268 R Total Power Factor

R -1 Not Applicable - reads 0xFFFF/NaN (int/oat)

7 269/270

8 271/272

9 273/274

10 275/276

11 277/278

12 279/280

13 281/282

14 283/284

15 285/286

16 287/288

17 289/290

18 291/292

19 293/294

20 295/296

21 297/298

22 299/300

R -1 Avg Voltage, L-N, ave of 1

R -2 Avg Voltage, L-N, ave of 2

R -3 Avg Voltage, L-N, ave of 3

R -1 Avg Current, average of 1

R -2 Avg Current, average of 2

R -3 Avg Current, average of 3

R -1 Real Power, phase A (same as Real Power, kW (3))

R -1 Not Applicable – reads as 0xFFFF/NaN (int/oat)

R -1/-2 Not Applicable – reads as 0xFFFF/NaN (int/oat)

R -1 Power Factor, phase A (Same as Total PF (6))

R -1 Not Applicable – reads 0xFFFF/NaN (int/oat)

R -1/-2 Not Applicable – reads 0xFFFF/NaN (int/oat)

R -1 Not Applicable – reads 0xFFFF/NaN (int/oat)

R -1/-2 Not Applicable – reads 0xFFFF/NaN (int/oat)

R -1 Voltage, phase A-N (Same as Avg. L-N (8))

R -1 Not Applicable – reads 0xFFFF/NaN (int/oat)

R -1/-2 Not Applicable – reads 0xFFFF/NaN (int/oat)

R -1 Current, phase A (Same as Avg. Current (9))

-2 Avg Voltage, L-L, ave of 1

-3 Avg Voltage, L-L, ave of 3

-2/-3 Real Power, phase A

-2/3 Real Power, phase B

-3 Real Power, phase C

-2/-3 Power Factor, phase A

-2/-3 Power Factor, phase B

-3 Power Factor, phase C

-2/-3 Voltage, phase A-B

-3 Voltage, phase B-C

-3 Voltage, phase A-C

-2/-3 Voltage, phase A-N

-2/-3 Voltage, phase B-N

-3 Voltage, phase C-N

-2/-3 Current, phase A

Both 257/258 and 259/260 have the same oating point value.

R: R = Read-only, R/W = read fro m either format, write to integer format only NV: Value is stored in non-volatile memory

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H8163-CB

INSTALLATION GUIDE

Int Float R/W NV Model Description Notes

23 301/302

24 303/304

25 305/306 R Present Demand Sub-Interval

26 307/308 R Present Demand (kW)

27 309/310 R NV Peak Demand

28 311/312 R Present kVAR Sub-Interval

29 313/314 R Present kVAR

30 315/316 R NV Peak kVAR The highest kVAR value (register 28) that has occurred.

31 R NV Count of kWh resets

32 R NV Count of Peak Demand Resets

33 R NV Count of Peak kVAR Resets

34 R Count of elapsed Sub-Intervals

35 R Number Readings in Present Sub-Interval

36 R/W NV Sub-Interval Length

37 R/W NV Number of Sub-Intervals per Demand Interval

38 R NV System ID

39 R NV CT Size This register reads as the CT size, 100, 300, etc.

40 R NV CT Number The number of CTs that are connected, 1, 2, or 3.

R -1 Not Applicable – reads 0xFFFF/NaN (int/oat)

-2/-3 Current, phase B

R -1/-2 Not Applicable – reads 0xFFFF/NaN (int/oat)

-3 Current, phase C

The currently accumulating sub-interval demand, which is

constantly changing.

The present demand, updated at the end of every sub-interval. This

value is the average of the previous N sub-intervals, where N is the number of sub-intervals (register 37).

The highest demand value (register 26) that has occurred. This

value is also displayed on LCD for MAX kW when the comms board is present.

The currently accumulating sub-interval kVAR, which is constantly

changing.

The present kVAR, updated at the end of every sub-interval. This

value is the average of the previous N sub-intervals, where N is the number of sub-intervals (register 37).

The number of times the kWh accumulator has been reset. This

value can never be reset. It will roll over from 65535 to zero.

The number of times the peak demand (register 27) has been

reset. This value can never be reset. It will roll over from 65535 to zero.

The number of times the peak kVAR (register 30) has been reset.

This value can never be reset. It will roll over from 65535 to zero.

The number of sub-intervals that have elapsed. Because the

demand (register 28) is updated every sub-interval, read this register to determine whether an identical value in register 28 is actually the same demand interval or if it is a new interval and the load has remained steady.

The number of readings that are represented by the present

sub-interval (register 25). This register acts as an unsigned integer. See below for explaination of sub-interval reading count overow. This register will increment every 200 msec (5 times per second).

Sets the length of a sub-interval. Value is the number of seconds

* 5, e.g. 4500 is 15 minutes. For sync-to-comms or sync-todemand-reset-input (hardware signal), set this to zero.

Sets the number of sub-intervals that make a single demand

interval. Legal values are 1 to 6. For block demand, set this to 1.

This register reads as 15024 for the basic meter and 15025 for the

enhanced model to help identify the meter.

R: R = Read-only, R/W = read fro m either format, write to integer format only NV: Value is stored in non-volatile memory

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H8163-CB

INSTALLATION GUIDE

Int Float R/W NV Model Description Notes

Command (bit mapped): bit 0 (mask 1) = Begin New Demand Sub-Interval bit 1 (mask 2) = Clear kWh accumulator

41 R/W

42 R/W NV

43 R NV Count of Phase Losses

44 R/W NV Date/Time Month 1-12 (LSB) Day 1-31 (MSB)

45 R/W NV Date/Time Year 0-199 (LSB) Hour 0-23 (MSB)

46 R/W NV Date/Time Minutes 0-59 (LSB) Seconds 0-59 (MSB)

47 R NV Phase Loss Timestamp, Month 1-12 (LSB) Day 1-31 (MSB)

48 R NV Phase Loss Timestamp, Year 0-199 (LSB) Hour 0-23 (MSB)

49 R NV Phase Loss Timestamp, Minutes 0-59 (LSB) Seconds 0-59 (MSB)

50 R NV Last Restart Timestamp, Month 1-12 (LSB) Day 1-31 (MSB)

51 R NV Last Restart Timestamp, Year 0-199 (LSB) Hour 0-23 (MSB)

52 R NV Last Restart Timestamp, Minutes 0-59 (LSB) Seconds 0-59 (MSB)

53 R NV Last KWh Reset Timestamp, Month 1-12 (LSB) Day 1-31 (MSB)

54 R NV Last KWh Reset Timestamp, Year 0-199 (LSB) Hour 0-23 (MSB)

55 R NV Last KWh Reset Timestamp, Minutes 0-59 (LSB) Seconds 0-59 (MSB)

56 R NV Reset System Firmware Version

57 R NV Operating System Firmware Version

58 R NV Serial Number LSW

59 R NV Serial Number MSW

bit 2 (mask 4) = Reset Peak Demand bit 3 (mask 8) = Reset Peak kVAR bits 4-15 = Write as zeros to avoid activating any additional commands that

might be added in future revisions

Phase Loss, Latching Register (bit mapped): bit 0: phase A (unpredictable results on phase A) bit 1: phase B bit 2: phase C bits 3 to 15 = write as zeros. This latching register should be cleared by user.

The number of times a phase loss has occurred on any phase. This

can never be reset and will roll over from 65535 to zero.

R: R = Read-only, R/W = read fro m either format, write to integer format only NV: Value is stored in non-volatile memory

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MULTIPLIER TABLE

H8163-CB

INSTALLATION GUIDE

MB Point

100A 200A 300/400A 800A 1600A 2400A

kWh

1 kWh 0.007813 0.015625 0.03125 0.0625 0.125 0.25

2 kWh 512 1024 2048 4096 8192 16384

3 kW 0.004 0.008 0.016 0.032 0.064 0.128

4 kVAR 0.004 0.008 0.016 0.032 0.064 0.128

5 kVA 0.004 0.008 0.016 0.032 0.064 0.128

6 PF 3.05E-05 3.05E-05 3.05E-05 3.05E-05 3.05E-05 3.05E-05

7 V_LL 0.03125 0.03125 0.03125 0.03125 0.03125 0.03125

8 V_LN 0.015625 0.015625 0.015625 0.015625 0.015625 0.015625

9 Amps 0.003906 0.007813 0.015625 0.03125 0.0625 0.125

10 kW_a 0.001 0.002 0.004 0.008 0.016 0.032

11 kW_b 0.001 0.002 0.004 0.008 0.016 0.032

12 kW_c 0.001 0.002 0.004 0.008 0.016 0.032

13 PF_a 3.05E-05 3.05E-05 3.05E-05 3.05E-05 3.05E-05 3.05E-05

14 PF_b 3.05E-05 3.05E-05 3.05E-05 3.05E-05 3.05E-05 3.05E-05

15 PF_c 3.05E-05 3.05E-05 3.05E-05 3.05E-05 3.05E-05 3.05E-05

16 V_ab 0.03125 0.03125 0.03125 0.03125 0.03125 0.03125

17 V_bc 0.03125 0.03125 0.03125 0.03125 0.03125 0.03125

18 V_ac 0.03125 0.03125 0.03125 0.03125 0.03125 0.03125

19 V_an 0.015625 0.015625 0.015625 0.015625 0.015625 0.015625

20 V_bn 0.015625 0.015625 0.015625 0.015625 0.015625 0.015625

21 V_cn 0.015625 0.015625 0.015625 0.015625 0.015625 0.015625

22 Amps_a 0.003906 0.003906 0.003906 0.003906 0.003906 0.003906

23 Amps_b 0.003906 0.003906 0.003906 0.003906 0.003906 0.003906

24 Amps_c 0.003906 0.003906 0.003906 0.003906 0.003906 0.003906

25 kWd 0.004 0.008 0.016 0.032 0.064 0.128

26 kWd 0.004 0.008 0.016 0.032 0.064 0.128

27 kWd 0.004 0.008 0.016 0.032 0.064 0.128

28 kVARd 0.004 0.008 0.016 0.032 0.064 0.128

29 kVARd 0.004 0.008 0.016 0.032 0.064 0.128

30 kVARd 0.004 0.008 0.016 0.032 0.064 0.128

Unit/Description

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DIVISOR TABLE

H8163-CB

INSTALLATION GUIDE

MB Point

100A 200A 300/400A 800A 1600A 2400A

kWh

1 kWh 128 64 32 16 8 4

2 kWh 1.953E-3 9.765E-4 4.8828E-4 2.4414E-4 1.2207E-4 6.1035E-5

3 kW 250 125 62.5 31.25 15.625 7.8125

4 kVAR 250 125 62.5 31.25 15.625 7.8125

5 kVA 250 125 62.5 31.25 15.625 7.8125

6 PF 32768 32768 32768 32768 32768 32768

7 V_LL 32 32 32 32 32 32

8 V_LN 64 64 64 64 64 64

9 Amps 256 128 64 32 16 8

10 kW_a 1000 500 250 125 62.5 32.25

11 kW_b 1000 500 250 125 62.5 32.25

12 kW_c 1000 500 250 125 62.5 32.25

13 PF_a 32768 32768 32768 32768 32768 32768

14 PF_b 32768 32768 32768 32768 32768 32768

15 PF_c 32768 32768 32768 32768 32768 32768

16 V_ab 32 32 32 32 32 32

17 V_bc 32 32 32 32 32 32

18 V_ac 32 32 32 32 32 32

19 V_an 64 64 64 64 64 64

20 V_bn 64 64 64 64 64 64

21 V_cn 64 64 64 64 64 64

22 Amps_a 256 128 64 32 16 8

23 Amps_b 256 128 64 32 16 8

24 Amps_c 256 128 64 32 16 8

25 kWd 250 125 62.5 31.25 15.625 7.8125

26 kWd 250 125 62.5 31.25 15.625 7.8125

27 kWd 250 125 62.5 31.25 15.625 7.8125

28 kVARd 250 125 62.5 31.25 15.625 7.8125

29 kVARd 250 125 62.5 31.25 15.625 7.8125

30 kVARd 250 125 62.5 31.25 15.625 7.8125

Unit/Description

Alta Labs, Enercep t, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘ V’ logo are trademark s or registered tradema rks of Veris Industries, L.L .C. in the USA and /or other count ries.

H8163-CB

NOTES

Integer format registers represent the data as 16-bit integer values. Float format registers represent the same data, as 32-bit oating point values.

For measured data, the oat format registers are recommended. The integer format registers are dicult to use for the measured data, as a multiplier must be employed for each to calculate the correct value. Most of the multipliers change, depending on the CT size. Reading the oat format registers avoids the need to use multipliers.

Modbus Block Reads

There is no maximum block size restriction, as with the 80xx Series power meters, as the entire Modbus response is fully buered. However, the total number of registers requested may not exceed 125, as the Modbus protocol only allows up to 256 bytes.

125 registers * 2 bytes per register + 5 bytes overhead = 255 bytes.

INSTALLATION GUIDE

The maximum legal sub-interval length is 65535 readings, which corresponds to 3 hours, 38 minutes, 27.2 seconds. When the 65535th reading is taken, the sub-interval reading counter overows. The H8163-CB detects this and ends the sub-interval. The next sub-interval begins on the next reading. In normal operation, it is expected that a sub-interval will not last longer than 1 hour.

When a sub-interval ends, the average kW/kVAR during that sub-interval (the accumulated kW/kVAR readings divided by the number of readings) is added to a six-value FIFO (rst in, rst out) that stores the six most recent sub-intervals. The kW/ kVAR accumulator and count of kW/kVAR readings are cleared to zero to begin a new sub-interval. The count of sub-intervals (register 34) is incremented. The present demand is recomputed by averaging the rst N elements of the FIFO, where N is the value in register 37. If the new present demand is higher than the stored peak demand, then the peak demand is updated to the new present demand.

Demand Computation, Internal Algorithm

The meter computes average kW/kVAR, by accumulating every kW/kVAR reading and keeping a count of the number of kW/kVAR readings accumulated. This occurs every 200 msec (5 Hz). The accumulated value, divided by the number of kW/kVAR readings, is the present sub-interval demand (kW/kVAR), which is read at registers 25 (kW) and 28 (kVAR).

A sub-interval may be terminated in three ways.

1. If a write to the command register has bit #0 set.

2. If the hardware signal (interval reset) is detected.

3. If the sub-inter val length (register 36) is set to a nonzero level and the count of the number of kW readings equals or exceeds the nonzero sub-interval length.

Although there are three ways to end a sub-interval, it is assumed that applications will use only one of them.

Miscellaneous

Some registers list a model sux. These registers apply only to those models. Registers that are not available for the particular model will read “0xFFFF” for integer points and “NaN” for oating point registers.

The kW accumulator is reset by writing to the command register with bit #1 set. This clears the kWh accumulator to zero. Any writes to the kWh points are ignored.

Floating Point Registers

All oating point values are compatible with the “32 bit IEEE real” format. All oating point variables are read-only. All read/write points must be written to their integer registers.

Alta Labs, Enercep t, Enspector, Hawkeye, Trustat, Veris, and the Veris ‘ V’ logo are trademark s or registered tradema rks of Veris Industries, L.L .C. in the USA and /or other count ries.

Veris H8163-CB Installation Instructions

Specifications and Main Features

Frequently Asked Questions

User Manual