Anerma Electronics Volt1000 User manual

Electronics
User Manual
Modular Power Meter
Volt1000
RoCo2000AN
Cube1000AN
Spark5A
Modular power meter with M DBUS
interface for power distribution systems
PJ201
Version 1.0
Anerma Electronics bv 25, Schaapsdries 2260 Westerlo Belgium Europe www.anerma.be

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Revision History
Version Date Improvement
0.1 12 Aug-2020 Initial version
0.2 30 Nov-2020 Revision
0.3 8 Feb-2021 Extended description of the modbus registers
0.4 27 Apr-2021 Added energy counters to the modbus registers
1.0 23 Jul-2021 ajor soft- and hardware review
RoCo2000AN or Cube1000AN can act as router
ODBUS register map is changed
Spark5A sensor is added

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Limited Warranty and disclaimer
Anerma products are guaranteed to be free of defects in workmanship or materials. Any
product that proves to be defective will be replaced or repaired at the discretion of Anerma.
LI ITATION
This limited warranty only covers conditions resulting from normal use of products. Anerma's
warranty shall not apply to the following products: products or parts repaired, altered or
modified by other than Anerma or an authorized repair representative, failure to follow proper
installation, operation or maintenance instructions and damage resulting from improper
storage conditions.
Copyright © 2021 by Anerma. All rights reserved. No part of this publication may be
reproduced or translated into any language, in any form, without prior written permission of
Anerma.

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Contents
1. Purpose ................................................................................................. 6
2. Intended Audience ............................................................................... 6
3. Glossary ................................................................................................ 6
4. Safety Regulations ................................................................................ 7
4.1. Warning, caution and notes ................................................................................ 7
4.2. General Safety Regulations ................................................................................. 7
5. Instrument Description ........................................................................ 8
5.1. Configurations. .................................................................................................. 9
5.2. Chain Configuration ......................................................................................... 10
5.3. RTU cable ........................................................................................................ 10
5.4. Interconnection or meter bus cables ................................................................. 11
5.5. Volt1000 ......................................................................................................... 11
5.6. RoCo2000AN 4 channel current sensor .............................................................. 12
5.7. Cube1000AN 4 channel current sensor .............................................................. 12
5.8. Spark5A 3 x 5A + partial discharge sensor. ....................................................... 13
5.9. Software Upgrade ...................................... Fout! Bladwijzer niet gedefinieerd.
5.10. Placement .................................................................................................... 13
5.11. Display with Touch Interface ......................................................................... 13
5.12. Ordering Codes ............................................................................................ 14
6. Modbus Interface ............................................................................... 15
6.1. odbus Settings .............................................................................................. 15
6.2. odbus address ............................................................................................... 15
6.3. odbus Registers............................................................................................. 15
6.3.1. Number formats ....................................................................................... 15
6.3.2. Register overview ..................................................................................... 16
6.3.3. aster table ............................................................................................. 16
6.3.4. Individual table – easurements ............................................................... 28
6.3.5. Individual table – Info ............................................................................... 29
6.3.6. Settings table ........................................................................................... 30
6.3.7. Commands table....................................................................................... 30
6.3.8. Energy table – Integers............................................................................. 30
6.4. Protocol functions ............................................................................................ 34
6.5. Set baudrate and address ................................................................................. 34
7. ModbusLink ........................................................................................ 37
8. Specifications ..................................................................................... 38

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8.1. Volt1000 .......................................................................................................... 38
8.2. Cube1000AN/RoCo2000AN ............................................................................... 38
List of figures ............................................................................................ 39
List of Tables ............................................................................................. 40

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1. Purpose
This document describes the use and the functional specifications of the modular power meter
sensors. This is identified by Project-ID PJ201.
2. Intended Audience
The intended audience is generally anybody who wants to measure power distribution
systems.
3. Glossary
Arms Ampere root-mean-square
As Ampere-second, 1A current measured during 1 second
CF Crest Factor
F Frequency
Hz Hertz, 1Hz = 1/second
I current
Ithd Total harmonic distortion of the current
N Neutral line
L1, L2, L3 Power lines 1, 2 and 3
LSB Least significant bit (value resolution in the MODBUS packet)
P Real Power
PE Protective Earth
PF Power Factor (=Voltage or current peek/RMS)
PGA Programmable Gain Amplifiers
Q Reactive Power
RMS Root Mean Square value
S Apparent Power
U Voltage
Uthd Total harmonic distortion of the voltage
VAC Voltage for alternating current
VDC Voltage for direct current

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4. Safety Regulations
4.1. Warning, caution and notes
Warnings, cautions and notes within this manual will be used as follows:
WARNING: Used to denote a danger to personnel of serious injury and/or death. The
warning will be preceded by the caption WARNING and the detail of any warning will be in
bold and uppercase.
CAUTI N: Used to denote a possibility of damage to material or equipment but not a danger
to personnel. The caution will be preceded by the caption CAUTION and the detail of any
caution will be in bold and lowercase.
N TE: used to draw attention to information that is extraneous to the immediate subject of
the text. A note will be preceded by the caption NOTE and the detail will be in italics.
All warnings, cautions and notes will precede the relevant sections of the text.
4.2. General Safety Regulations
WARNING: THIS DEVICE IS NOT DESIGNED FOR AND THEREFORE NOT INTENDED
FOR USE IN ANY ENVIRONMENT WHERE HUMAN LIFE DEPENDS DIRECTLY ON THE
USE OF PROVEN RELIABILITY AND FAILSAFE TECHNIQUES AND COMPONENTS.
WARNING: THIS DEVICE MUST ONLY BE OPERATED IN ENVIRONMENTS
LIMITED TO THE SPECIFIED TEMPERATURE AND HUMIDITY CONDITIONS.
WARNING: THIS DEVICE IS NOT PROTECTED AGAINST ANY CORROSION
FROM ANY TOXICAL PARTICLE, FLUID OR GAS.
WARNING: THIS DEVICE MUST NOT BE USED IN NUCLEAR PLANTS OR IN
ANY EXPLOSIVE ENVIRONMENT.
CAUTION: The maximum input voltages must not be exceeded.

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5. Instrument Description
The modular power meter consists of voltage (Volt1000) and current
(Cube1000AN/RoCo2000AN) meters with a modbus interface. The Spark5A can be added and
has 5A (20Apeek) range with an ultrasonic microphone to detect partial discharges.
This meter is intended to be used together with a ODBUS RTU master (often a PLC). To
avoid a lot of cabling, the different meters can be connected in a chain to become a
cascaded multi-channel meter. Only one cable should be connected to the RTU master to
measure up to 15 x 4 = 60 power lines.
This modular system consist of a voltage module (Volt1000) that measures L1,L2,L3,N, and
one up to fifteen current modules (Cube1000AN/RoCo2000AN) measure power and current.
In other words, for up to 15 3-phase+N outgoing power lines, it is possible to measure the
voltage, current and power for the 3 phases and the voltage & current in the Neutral.
To accomplish this, the Volt1000 meter samples the voltage and sends the samples to the
Cube1000AN/RoCo2000AN meters on the cascade bus. Each Cube1000AN/RoCo2000AN
meter uses these samples to calculate the power components.
The Volt1000 meter acts as a bridge between the ODBUS master and the cascade bus.
If it is not necessary to measure the voltage, also the first Cube1000AN/RoCo2000AN can
form the bridge between ODBUS and the other current sensors.
The meter uses a dual meter principle.
When buying a multi-meter, one has to choose between a manual- or an auto ranging one.
The disadvantage of an auto ranging meter is that, during the range switch, no
measurements are available. The disadvantage of a manual selection is that we lose all
measurements if an erroneous range is selected.
Our solution is the combination of both. Each voltage or current input goes to a fix range
input and to an auto ranging input. The fix range input is set to the maximum range while
the auto ranging one follows the input. Software selects the right measurement.
With this double meter principle, we get a maximum resolution by auto ranging, while peaks
are always catched by the fixed range.
A second benefit is that we get a high crest factor, because the maximum range is always
available.
Each input has his own analog to digital convertor, to get a full-bandwidth measurement with
a maximum resolution.
PreAmp
Protection
Select
FFT
FFT
ADC_1
Overrange
Samples
ADC_5
Samples
PGA_1
Range
x3
x7
x15
x31
x61
Fix range
Samples f rom Volt1000
Current
U*I
U
PI
Q
UxI
U
SI
uP
Select
OV
Range Output
P
Q
S
Results sent to Volt1000
Figure 5-1 Block schematic of a current input, only one channel is shown

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5.1. Configurations.
Different configurations are possible, hereunder we show some as an indication.
In all configurations, the first module acts for ODBUS as bridge to the other sensors. The
modbus address equals the ODBUS address of the first sensor plus the position of the
sensor in the cascade. I.e.: if the first sensor has the address 10, then the next will have 11,
and so on. To make it easier for you, we call the first module sensor_0 the next module
sensor_1, etc. so the number is the offset of the ODBUS address.
Master
(PLC)
RTU
MODBUS
Volt-
1000
RTU BUS
SENSOR_0
RoCo-
2000AN
BUSBUS
SENSOR_1
RoCo-
2000AN
BUSBUS
SENSOR_2
RoCo-
2000AN
BUSBUS
SENSOR_3
RoCo-
2000AN
BUS NC
SENSOR_4
Figure 5-2 Volt sensor act as bridge from M DBUS to sensor bus
Master
(PLC)
RTU
MODBUS
RoCo-
2000AN
BUSBUS
SENSOR_1
RoCo-
2000AN
BUSBUS
SENSOR_2
RoCo-
2000AN
BUS NC
SENSOR_4
RoCo-
2000AN
BUSRTU
SENSOR_0
Cube-
1000AN
SENSOR_3
Figure 5-3 RoCo2000AN sensor act as bridge from M DBUS to sensor bus
Figure 5-4 Sensors can be mixed, but Volt must be first and Spark must be the last
Master
(PLC)
RTU
MODBUS
Cube-
1000AN
SENSOR_1
Cube-
1000AN
SENSOR_2
Cube-
1000AN
SENSOR_3
Spark
BUS NC
SENSOR_4
Volt-
1000
RTU BUS
SENSOR_0
Master
(PLC)
RTU
MODBUS
RoCo-
2000AN
RTU NC
SENSOR_0
Master
(PLC)
RTU
MODBUS
Volt-
1000
RTU NC
SENSOR_0
Figure 5-5 Volt or RoCo can be used as a single device

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5.2. Chain Configuration
The different modules can be connected in a chain, so there is only one wire that’s goes to
the ODBUS-RTU master. The first module will be seen on the configured ODBUS address
while the successors will have consecutive addresses.
5.3. M DBUS-RTU cable
This RTU cable, available in an order, has a standard length of 5m and with the cores of the
free end freed over 50mm and stripped and tinned over 5mm.
Figure 5-6 Volt1000, Cube1000AN & RoCo2000AN chain Configuration
Figure 5-7 M DBUS RTU cable pinning

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5.4. Interconnection or meter bus cables
Here standard Ethernet patch cables can be used, be aware that the cable contains 8 cores.
These cables are available in all lengths and colors on the market.
Note: Cables for industrial ethernet often have only 2 pairs of wires.
Warning: do not plug the RJ45 jack into a computer or ethernet switch, the 24V can damage
the 1G-bit channel.
5.5. Volt1000
The voltage sensor has the following properties:
-measure 3-phase voltage +N (connection for 3 phases and neutral wire);
-modbus interface.
-Two RJ45 sockets for chaining, standard Ethernet cables can be used.
-DIN-rail-TS35 mounting + magnet to fix it on an iron plate.
-CAT4.
-2 meter long wires to connect with L1, L2, L3 and N.
-high creeping and clearance distance 15mm, not only for inputs to GND but also
between phases.
-1000V rms fix input range.
-300V, 200V, 140V auto range for L1 - N, L2 - N, L3 – N.
-300V, 200V, 100V, 63V, 32V auto range between N and GND (if the 0V pin is earthed
in the ODBUS master).
-10 -Ohm input impedance, 5kV, 15mm creeping distance.
-graphical 128x64 pixel OLED display with touch interface, this shows the
measurements of the whole chain and can be used to set-up the system.
Note: The OLED works only with a power supply of more than 14 Volts.
-24V, power consumption: 15mA (30mA with OLED display on) + n x 15mA to feed n
current modules.
Figure 5-8 Volt1000 Module

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5.6. RoCo2000AN 4 channel current sensor
The current sensor with 4 Rogowski coils, has the following properties:
-measurement coils for 4 currents (3 phases and neutral wire);
-modbus interface.
-Two RJ45 sockets for chaining.
-DIN-rail-TS35 mounting + magnet to fix it on an iron plate.
-easurements of current, voltage, active power (imported and exported), reactive
power, power factor, cos(phi), frequency, distortion.
-Ranges:
o2000A rms fix input range.
o630A, 400A, 250A, 160A, 100A, 63A, 32A auto range for I1, I2, I3 and IN
(independent selection)
-24V power, 10mA power consumption.
-Stand-alone device: It can be connected directly to a modbus master.
-Chain mode: see 5.2
5.7. Cube1000AN 4 channel current sensor
The Cube1000 is almost identical, only the form and ranges of the current are different. This
sensor is designed for cables where the space between cables is as low as 4mm.
-Ranges:
o1000A rms fix input range
o320A, 200A, 140A, 100A, 63A, 32A, 16A auto range for I1, I2, I3 and IN
(independent selection)
Figure 5-9 Current module with Rogowski coils
Figure 5-10 Cube 1000AN current sensor

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5.8. Spark5A 3 x 5A + partial discharge sensor.
This current sensor is designed for installations with
current transformers. ostly the secondary of this
transformers is already connected to a metering or
control system. With this sensor this standard 5A or 1A
currents can be measured in an contactless manner.
Just put the 3 wires, though the holes of the sensor.
-Ranges:
o20A rms fix input range
o5A, 2A, 1A, 0.5A, 0,25A auto range for I1, I2, I3
In addition an ultrasonic microphone picks up the typical noise caused by partial discharge in
high voltage installation. Our proprietary algorithm splits up this noise in different bands, and
filters out the non 50 or 60 Hz related components.
A user should note that the detected level of partial discharge depends to the source
distance and acoustic properties of the room. So, not absolute level, but the level increase is
important to predict a potential explosion of the installation.
5.9. Placement
There are several possibilities to place the sensors:
-free hanging;
-fix with a cable tie;
-clicked on a DIN rail;
-attach to iron with the built in magnet.
5.10. Display with Touch Interface
The Volt1000 module has a display with touch interface. This allows to view the main
measurements and to alter the modbus settings.
There are several screens with measurements:
-Pt, It, In: total power (W), total current (A) and neuter current (A) for all attached
current sensors
-V, F: voltage (V) and frequency (Hz)
-I1..4, P1..4: current per phase (A), power per phase (W) per 3 current sensors
The settings screen shows the modbus address and baudrate. These can be altered and
saved.
The touchscreen distinguishes between short and long (>2.5s) touches. When touching the
screen longer than 0.5s, a progress bar at the top is shown as a visual aid.
The screen is enabled by touching it. It is disabled after no touches have been detected for
30s. It can also be disabled by a long touch in one of the measurement screens.

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5.11. Software Upgrade
Easy program upgrade can be done in one of next ways:
-writing the upgrade file with a USB-RS485-RJ45 cable to the Volt1000 meter (this
uses a PC program odbusLink, see chapter 7);
-writing the upgrade with our proprietary protocol over ODBUS;
In a chain, the Volt1000 or first current meter can forward its upgrade to the attached
Cube1000AN/RoCo2000AN/Spark5A meters. This has to be initiated via the display.
5.12. rdering Codes
Code Description
Volt1000 3-ph+N voltage sensor with ODBUS + master
RoCo2000AN 4x2000A Rogowsky coil current sensor
Cube1000AN 4x1000A current cube sensor
Spark5A 3x5A current sensor with measurement of partial discharge
odbusCable5 5m ODBUS RTU cable with RJ45 plug + striped end
odbusLink PC program to upgrade, configure and read out the sensors
USB-RS485 USB to modbus cable to be used with the obusLink program
Table 5-1 rdering Codes

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6. Modbus Interface
6.1. Modbus Settings
The modbus address and baudrate can be set by the user.
The available baud rates are 4800, 9600, 19600, 38400, 57600 and 115200. The
communication uses 8 data bits without parity and 1 stop bit. It is in binary format with most
significant digits first and 16-bit CRC
Internally the receiver channel is doubled, while the first channel is used for the ODBUS
communication at the selected baud rate, the second channel is fixed to 9600bd so a user
can always communicate at 9600bd to configure the module.
The settings can be changed in several ways:
-via a odbusLink PC program (see chapter 7);
-via the display with touch interface (Volt1000 only);
-via modbus on a fixed 9600 baudrate.
-via modbus on the (previously) configured baudrate
6.2. Modbus address
When used in a chain configuration, the first sensor on the bus takes its stored address and
all connected Cube1000AN/RoCo2000AN meters get the address of the first sensor + 1..15
by default. The number 1..15 is the sensor position after the first sensor. Care must be taken
that this does not overlap with the addresses of other modules on the bus!
A ODBUS bus termination resistor of 120Ω is fixed in the Volt1000/Cube1000/RoCo2000AN
module. So this sensor is always the last element in the ODBUS-RTU
The first sensor is the only one that is directly connected to the modbus. It acts as a router
for the chained Cube1000AN/RoCo2000AN meters so all meters can be reached from the
modbus.
Example
A Volt1000 meter with address 10 has 3 Cube1000/RoCo2000 meters attached to it.
The bus addresses are:
-Volt1000: 10
-first Cube1000/RoCo2000: 11
-second Cube1000/RoCo2000: 12
-third Cube1000/RoCo2000: 13
6.3. Modbus Registers
6.3.1. Number formats
Number coding:
-32-bit number (int32): The MSB a ways comes first, or register n contains bit 31..16
and register n+1 contains bit 15..0

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-64-bit number (int64): The MSB a ways comes first, or register n contains bit 63..48,
register n+1 contains bit 47..32, register n+2 contains bit 31..16 and register n+3
contains bit 15..0
-Date = 32-bit number that contains the offset from 1/1/2000 in seconds.
oEx1: 10 => 1/1/2000 0h0m10s
oEx2: 3600 => 1/1/2000 1h00s
oEx3: 662774400 => 01/01/2021 0h0m0s
-F oating point numbers (32-bit) fo ows the IEEE754 standard (f oat32):
obit-31=sign
obit-30..23=binary exponent with offset 0hF
o1,bit22..0=mantissa (1 represents the hidden bit)
oEx1: 0h3F800000 => 1.0E0
oEx2: 0h40000000 => 2.0E0
-Ha f precision F oating point numbers (16-bit) fo ows the IEEE754 standard
(f oat16):
obit-15=sign
obit-14..10=binary exponent with offset 0h7F
o1,bit9..0=mantissa (1 represents the hidden bit)
oEx1: 0h3C00 => 1
oEx2: 0h4000 => 2
oEx3: 0h7BFF => 65504 (maximum va ue)
oEx4: 0h1418 => 0.001
The resolution remains relatively high, for a value of 230V we get 0.125V as resolution
o0h5B30 => 230.000
o0h5B31 => 230.125
All measurements (VAC,AAC,W,%,Hz) are floating point numbers
6.3.2. Register overview
Name Register Address Range
aster table 0x0000-0x47FF
Individual table – easurements 0x5000-0x50FF
Individual table – Info 0x5100-0x51FF
Settings table 0x5200-0x52FF
Commands table 0x5300-0x53FF
Energy table – Integers 0x6000-0x6FFF
Energy table – Floating point 0x7000-0x7FFF
Table 6-1 Modbus registers overview
6.3.3. Master table
The master table groups all measurements per type:
-voltage measurements (includes distortion and frequency) (U, Uthd, F)
-current measurements (I)
-real power measurements (P)

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-reactive power measurements (Q)
-cos(φ) measurements (Cosphi)
-power factor measurements (PF)
-current distortion measurements (Ithd)
-apparent power measurements (S)
For all these measurements, several values are available:
-actual value in 32-bit floating point, the actual value is the value measured in the last
second
-actual value in 16-bit floating point
-mean value in 16-bit floating point over the last interval
-maximum value in 16-bit floating point over the last interval
-minimum value in 16-bit floating point over the last interval
The sensors calculate the mean, maximum and minimum values for each measurement over
a minute. These are stored for the last 15 minutes. Then it calculates the mean, maximum
and minimum values over an interval. The length of the interval can be set (see 6.3.6). It is a
value in minutes ranging from 1 to 15.
The master table is only available on the first sensor on the bus.
Value Format Measurement Register Address Range
Actual value float32 U, Uthd, F 0x0000-0x00FF
I 0x0100-0x01FF
P 0x0200-0x02FF
Q 0x0300-0x03FF
Cosphi 0x0400-0x04FF
PF 0x0500-0x05FF
Ithd 0x0600-0x06FF
S 0x0700-0x07FF
Actual value float16 U, Uthd, F 0x1000-0x10FF
I 0x1100-0x11FF
P 0x1200-0x12FF
Q 0x1300-0x13FF
Cosphi 0x1400-0x14FF
PF 0x1500-0x15FF
Ithd 0x1600-0x16FF
S 0x1700-0x17FF
ean value float16 U, Uthd, F 0x2000-0x20FF
I 0x2100-0x21FF
P 0x2200-0x22FF
Q 0x2300-0x23FF
Cosphi 0x2400-0x24FF
PF 0x2500-0x25FF
Ithd 0x2600-0x26FF
S 0x2700-0x27FF
aximum value float16 U, Uthd, F 0x3000-0x30FF
I 0x3100-0x31FF
P 0x3200-0x32FF
Q 0x3300-0x33FF
Cosphi 0x3400-0x34FF

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PF 0x3500-0x35FF
Ithd 0x3600-0x36FF
S 0x3700-0x37FF
inimum value float16 U, Uthd, F 0x4000-0x40FF
I 0x4100-0x41FF
P 0x4200-0x42FF
Q 0x4300-0x43FF
Cosphi 0x4400-0x44FF
PF 0x4500-0x45FF
Ithd 0x4600-0x46FF
S 0x4700-0x47FF
Table 6-2 Modbus master table overview
Name Register
Address
Description Units Format
U1N 0x0000 Phase voltage L1 Vrms float32
U2N 0x0002 Phase voltage L2 Vrms float32
U3N 0x0004 Phase voltage L3 Vrms float32
UN 0x0006 Neuter voltage (PE is reference) Vrms float32
U12 0x0008 Line voltage L1-L2 Vrms float32
U23 0x000A Line voltage L2-L3 Vrms float32
U31 0x000C Line voltage L3-L1 Vrms float32
U1THD 0x000E Total harmonic distortion – U1 % float32
U2THD 0x0010 Total harmonic distortion – U2 % float32
U3THD 0x0012 Total harmonic distortion – U3 % float32
Frequency 0x0014 Frequency Hz float32
I1.1 0x0100 Current sensor 1 channel 1 Arms float32
I1.2 0x0102 Current sensor 1 channel 2 Arms float32
I1.3 0x0104 Current sensor 1 channel 3 Arms float32
I1.4 0x0106 Current sensor 1 channel 4 Arms float32
I2.1 0x0108 Current sensor 2 channel 1 Arms float32
I2.2 0x010A Current sensor 2 channel 2 Arms float32
I2.3 0x010C Current sensor 2 channel 3 Arms float32
I2.4 0x010E Current sensor 2 channel 4 Arms float32
...
I15.1 0x0170 Current sensor 15 channel 1 Arms float32
I15.2 0x0172 Current sensor 15 channel 2 Arms float32
I15.3 0x0174 Current sensor 15 channel 3 Arms float32
I15.4 0x0176 Current sensor 15 channel 4 Arms float32
P1.1 0x0200 Real power sensor 1 channel 1 W float32
P1.2 0x0202 Real power sensor 1 channel 2 W float32
P1.3 0x0204 Real power sensor 1 channel 3 W float32
P1.4 0x0206 Real power sensor 1 channel 4 W float32
P2.1 0x0208 Real power sensor 2 channel 1 W float32
P2.2 0x020A Real power sensor 2 channel 2 W float32
P2.3 0x020C Real power sensor 2 channel 3 W float32
P2.4 0x020E Real power sensor 2 channel 4 W float32
...
P15.1 0x0270 Real power sensor 15 channel 1 W float32
P15.2 0x0272 Real power sensor 15 channel 2 W float32
P15.3 0x0274 Real power sensor 15 channel 3 W float32

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P15.4 0x0276 Real power sensor 15 channel 4 W float32
Q1.1 0x0300 Reactive power sensor 1 channel 1 var float32
Q1.2 0x0302 Reactive power sensor 1 channel 2 var float32
Q1.3 0x0304 Reactive power sensor 1 channel 3 var float32
Q1.4 0x0306 Reactive power sensor 1 channel 4 var float32
Q2.1 0x0308 Reactive power sensor 2 channel 1 var float32
Q2.2 0x030A Reactive power sensor 2 channel 2 var float32
Q2.3 0x030C Reactive power sensor 2 channel 3 var float32
Q2.4 0x030E Reactive power sensor 2 channel 4 var float32
...
Q15.1 0x0370 Reactive power sensor 15 channel 1 var float32
Q15.2 0x0372 Reactive power sensor 15 channel 2 var float32
Q15.3 0x0374 Reactive power sensor 15 channel 3 var float32
Q15.4 0x0376 Reactive power sensor 15 channel 4 var float32
CosPhi1.1 0x0400 Cos(φ) sensor 1 channel 1 - float32
CosPhi1.2 0x0402 Cos(φ) sensor 1 channel 2 - float32
CosPhi1.3 0x0404 Cos(φ) sensor 1 channel 3 - float32
CosPhi1.4 0x0406 Cos(φ) sensor 1 channel 4 - float32
CosPhi2.1 0x0408 Cos(φ) sensor 2 channel 1 - float32
CosPhi2.2 0x040A Cos(φ) sensor 2 channel 2 - float32
CosPhi2.3 0x040C Cos(φ) sensor 2 channel 3 - float32
CosPhi2.4 0x040E Cos(φ) sensor 2 channel 4 - float32
...
CosPhi15.1 0x0470 Cos(φ) sensor 15 channel 1 - float32
CosPhi15.2 0x0472 Cos(φ) sensor 15 channel 2 - float32
CosPhi15.3 0x0474 Cos(φ) sensor 15 channel 3 - float32
CosPhi15.4 0x0476 Cos(φ) sensor 15 channel 4 - float32
PF1.1 0x0500 Power factor sensor 1 channel 1 - float32
PF1.2 0x0502 Power factor sensor 1 channel 2 - float32
PF1.3 0x0504 Power factor sensor 1 channel 3 - float32
PF1.4 0x0506 Power factor sensor 1 channel 4 - float32
PF2.1 0x0508 Power factor sensor 2 channel 1 - float32
PF2.2 0x050A Power factor sensor 2 channel 2 - float32
PF2.3 0x050C Power factor sensor 2 channel 3 - float32
PF2.4 0x050E Power factor sensor 2 channel 4 - float32
...
PF15.1 0x0570 Power factor sensor 15 channel 1 - float32
PF15.2 0x0572 Power factor sensor 15 channel 2 - float32
PF15.3 0x0574 Power factor sensor 15 channel 3 - float32
PF15.4 0x0576 Power factor sensor 15 channel 4 - float32
Ithd1.1 0x0600 Current distortion sensor 1 channel 1 % float32
Ithd1.2 0x0602 Current distortion sensor 1 channel 2 % float32
Ithd1.3 0x0604 Current distortion sensor 1 channel 3 % float32
Ithd1.4 0x0606 Current distortion sensor 1 channel 4 % float32
Ithd2.1 0x0608 Current distortion sensor 2 channel 1 % float32
Ithd2.2 0x060A Current distortion sensor 2 channel 2 % float32
Ithd2.3 0x060C Current distortion sensor 2 channel 3 % float32
Ithd2.4 0x060E Current distortion sensor 2 channel 4 % float32
...
Ithd15.1 0x0670 Current distortion sensor 15 channel 1 % float32
Ithd15.2 0x0672 Current distortion sensor 15 channel 2 % float32

Modular Power Meter
odular power meter version 1.0 Page 20 / 40
Ithd15.3 0x0674 Current distortion sensor 15 channel 3 % float32
Ithd15.4 0x0676 Current distortion sensor 15 channel 4 % float32
S1.1 0x0700 Apparent power sensor 1 channel 1 VA float32
S1.2 0x0702 Apparent power sensor 1 channel 2 VA float32
S1.3 0x0704 Apparent power sensor 1 channel 3 VA float32
S1.4 0x0706 Apparent power sensor 1 channel 4 VA float32
S2.1 0x0708 Apparent power sensor 2 channel 1 VA float32
S2.2 0x070A Apparent power sensor 2 channel 2 VA float32
S2.3 0x070C Apparent power sensor 2 channel 3 VA float32
S2.4 0x070E Apparent power sensor 2 channel 4 VA float32
...
S15.1 0x0770 Apparent power sensor 15 channel 1 VA float32
S15.2 0x0772 Apparent power sensor 15 channel 2 VA float32
S15.3 0x0774 Apparent power sensor 15 channel 3 VA float32
S15.4 0x0776 Apparent power sensor 15 channel 4 VA float32
Table 6-3 Modbus master table registers – Actual values in float32
The units for the power values are different in 32-bit floating point (W, var, VA) and 16-bit
floating point (kW, kvar, kVA). All other units stay the same.
Name Register
Address
Description Units Format
U1N 0x1000 Phase voltage L1 Vrms float16
U2N 0x1001 Phase voltage L2 Vrms float16
U3N 0x1002 Phase voltage L3 Vrms float16
UN 0x1003 Neuter voltage (PE is reference) Vrms float16
U12 0x1004 Line voltage L1-L2 Vrms float16
U23 0x1005 Line voltage L2-L3 Vrms float16
U31 0x1006 Line voltage L3-L1 Vrms float16
U1THD 0x1007 Total harmonic distortion – U1 % float16
U2THD 0x1008 Total harmonic distortion – U2 % float16
U3THD 0x1009 Total harmonic distortion – U3 % float16
Frequency 0x100A Frequency Hz float16
I1.1 0x100B Current sensor 1 channel 1 Arms float16
I1.2 0x1100 Current sensor 1 channel 2 Arms float16
I1.3 0x1101 Current sensor 1 channel 3 Arms float16
I1.4 0x1102 Current sensor 1 channel 4 Arms float16
I2.1 0x1103 Current sensor 2 channel 1 Arms float16
I2.2 0x1104 Current sensor 2 channel 2 Arms float16
I2.3 0x1105 Current sensor 2 channel 3 Arms float16
I2.4 0x1106 Current sensor 2 channel 4 Arms float16
... 0x1107
I15.1 Current sensor 15 channel 1 Arms float16
I15.2 0x1138 Current sensor 15 channel 2 Arms float16
I15.3 0x1139 Current sensor 15 channel 3 Arms float16
I15.4 0x113A Current sensor 15 channel 4 Arms float16
P1.1 0x113B Real power sensor 1 channel 1 kW float16
P1.2 0x1200 Real power sensor 1 channel 2 kW float16
P1.3 0x1201 Real power sensor 1 channel 3 kW float16
P1.4 0x1202 Real power sensor 1 channel 4 kW float16
P2.1 0x1203 Real power sensor 2 channel 1 kW float16