Acrel ADW310 Guide

350
ADW310 Wireless Energy Meter
Installation and Use Manual V1.0
Acrel Co., Ltd.

Declaration
The copyright is the property of Acrel. Any information in any paragraph or section
cannot be extracted, copied or otherwise reproduced or propagated. Otherwise offenders
shall take all consequences.
All rights are reserved.
Acrel reserves the right to modify the product specifications herein without
notification. Please consult the local agent about the latest specifications before placing a
purchase order.

Manual revision record
Date
Old Version
New Version
Modify the content
2022/8/8
V1.0
1.Writing for the first time

Catalog
1 Overview ..............................................................................................................................1
2 Product Model Specification And Features ........................................................................ 1
2.1 ADW310 Wireless Energy Meter Naming Rules ............................................................ 1
2.2 ADW310 Wireless Energy Meter Features ......................................................................1
3 Technical Parameters ...........................................................................................................2
3.1 Electrical Characteristics .................................................................................................. 2
3.2 Environmental Conditions ................................................................................................3
4 Dimension and Installing Description( Unit：mm) ............................................................3
4.1 Dimension( Unit：mm) ....................................................................................................3
4.2 RS485 Communication Terminal, Pulse Output Terminal ..............................................4
4.3 Switch Input/Output Terminal ..........................................................................................4
4.4 Temperature Measuring Terminal ....................................................................................5
4.5 Wiring Instructions ........................................................................................................... 6
5 Main Features .......................................................................................................................6
5.1 Measurement Function ..................................................................................................... 6
5.2 Metering Function ............................................................................................................ 6
5.3 Time Sharing Function ..................................................................................................... 7
5.4 Demand Function ..............................................................................................................7
5.5 Historical Energy Statistics Function ...............................................................................8
5.6 Switch Input And Output Function .................................................................................. 8
5.7 Wireless Communication Function ..................................................................................8
6 Communication Instructions ................................................................................................8

6.1 Communication Protocol ..................................................................................................8
6.2 MODBUS Communication .............................................................................................. 9
6.3 Alarm Function Related Settings ................................................................................... 15
6.3.1Alarm 1 Related Parameter Register Address Table ................................................... 15
6.3.2Alarm 2/3 Related Parameter Register Address Table ................................................ 17
7 Common Troubleshooting .................................................................................................19
7.1 Instrument RS485 Network Communication Failure .................................................... 19
7.2 Instrument Wireless Communication Failure ................................................................ 20

1
1 Overview
ADW310 wireless energy meter is mainly used to measure the active energy of
low-voltage network. It has the advantages of small size, high precision, rich functions,
etc., and has many optional communication methods. It can support RS485
communication, Lora, 4G and other wireless communication methods. The current
sampling mode of the transformer is convenient for users to install and use in different
occasions. It can be flexibly installed in the distribution box to meet the needs of power
metering, operation and maintenance supervision or power monitoring for different areas
and different loads.
2 Product Model Specification And Features
2.1 ADW310 Naming Rules
2.2 ADW310 Features
Table 1 ADW310 Main Function
Function
Description
Display
LCD (field type)
Energy Metering
Active energy metering (forward, reverse)
2 Channels Temperature
RS485 Communication
1 Channel DI,1 Channel DO
None: LR:LoRA WF:WIFI 4GHW:4G Overseas Version 4G:Domestic
Diameter Of Matched Current Transformer
Wireless Metering Module

2
Electricity Measurement
Voltage,current,power factor, frequency,active
power,reactive power, apparent power
Harmonic Function
Total harmonic content, sub-harmonic content (2 to 31
times)
Pulse Output
Active pulse output
Temperature Measurement Function
Two-way temperature measurement (optional T)
DI/DO
1DI, 1DO (optional K)
LED Indication
Pulse light indication
External Transformer
External split core current transformer
Electric Parameter Alarm
Leakage of voltage, overvoltage, Leakage of current,
overcurrent, leakage of load, overload, etc.
Communication
RS485 interface (optional C)
470MHz wireless transmission (optional LR)
4G wireless transmission (optional 4G)
WIFI wireless communication (optional WF)
3 Technical Parameters
3.1 Electrical Characteristics
Table 2 ADW310 Electrical Characteristics
Voltage Input
Rated Voltage
220V
Reference Frequency
50Hz
Power Consumption
Each phase<0.5VA
Current Input
Input Current
AC 20(100)A
Starting Current
1‰Ib(0.5S class)，4‰Ib(1 class)
Power Consumption
Each phase<1VA
Auxiliary Power
Voltage Supply
AC 85~265V
Power Consumption
<2W
Measuring
Performance
Standards
GB/T17215.322-2008，GB/T17215.321-2008
Compliant
Active Energy Accuracy
Class 1
Temperature Accuracy
±2℃
Pulse
Pulse Width
80±20ms
Pulse Constant
1600imp/kWh

3
Communication
Wirelese
470MHz wireless transmission, transmission
distance in open space: 1km; 4G
Interface
RS485(A、B)
Medium
Shielded Twisted Pair
Protocol
MODBUS-RTU、DL/T 645-07
3.2 Environmental Conditions
Table 3 ADW310 Environment Conditions
Temperature Range
Operating Temperature
-25℃~55℃
Storage Temperature
-40℃~70℃
Humidity
≤95%(no condensation)
Altitude
<2000m
4 Dimension and Installing Description( Unit：mm)
4.1 Dimension( Unit：mm)
Figure 1 ADW310 Size Figure

4
Supporting CT Dimensions
Table 5 Specifications and Dimensions of Supporting Transformers
Specification
Dimensions (mm)
Perforation size
(mm)
Toleranc
e (mm)
W
H
D
M
N
Φ1
Φ2
AKH-0.66/K-∅10N
27
44
32
25
36
10
9
±1
AKH-0.66/K-∅16N
31
50
36
27
42
16
17
Dimension Figure of Matched Current Transformer
4.2 Communication Terminal, Pulse Output Terminal
Communication Interface Pulse Port
4.3 Switch Input/output Terminal
The switch input is the switch signal input method, the instrument is equipped with
+12V working power supply, no external power supply is required. When the external

5
connection is turned on or off, the on or off information is collected through the instrument
switch input module and displayed locally by the instrument. The switch input can not
only collect and display the local switch information, but also realize the remote
transmission function through the RS485 of the instrument, that is, the "remote signal"
function.
Switch output is relay output, which can realize "remote control" and alarm output.
Switch input and output
4.4 Temperature Measuring Terminal
Temperature Input

6
4.5 Wiring Instructions
5 Main Features
5.1 Measurement Function
It can measure all power parameters including voltage U, current I, active power P,
reactive power Q, apparent power S, power factor PF, phase angle Φ between voltage and
current, frequency F, 31st harmonic, parity Total harmonic content and total harmonic
content. Among them, the voltage U has 1 decimal place, the frequency F has 2 decimal
places, the current I has 3 decimal places, the power P has 4 decimal places, and the phase
angle Φ has 2 decimal places.
Such as: U = 220.1V, f = 49.98HZ, I = 1.999A, P = 0.2199KW, Φ= 60.00°.
Support 2-way temperature measurement, temperature measurement range: -40 ~
99 °C,accuracy ±2 °C
5.2 Metering Function
It can measure the current combined active energy, forward active energy,

7
reverse active energy, inductive reactive energy, capacitive reactive energy, and
apparent energy.
5.3 Time Sharing Function
Two sets of timetables, one year can be divided into 4 time zones, each set of
timetables can set 12 daily time periods, 4 rates (F1, F2, F3, F4 are peaks and valleys).
The basic idea of time-of-use billing is to use electric energy as a commodity, using
economic leverage, the electricity price is high during the peak period of electricity
consumption, and the electricity price is low when the valley is low, so as to cut the
peak and fill the valley, improve the quality of electricity consumption, and improve
the overall economic benefits.
5.4 Demand Function
The concepts related to demand are as follows：
Demand
The average power measured during the demand period is called demand
Maximum Demand
The maximum demand in a specified time zone is called the maximum
demand
Slip Time
From any moment, the method of recursively measuring demand
according to the time less than the demand period, the measured demand
is called slip demand. The recursive time is called slip time
Demand Cycle
The time interval at which the average power is continuously measured
is equal, also called the window time
The default demand period is 15 minutes and the slip time is 1 minute.
It can measure 8 kinds of maximum demands, namely A/B/C three-phase current,
forward active power, reverse active power, inductive reactive power, capacitive reactive
power, apparent power maximum demand and the time when the maximum demand
occurs.
Displays 8 real-time demands, namely A/B/C three-phase current, forward active power,

8
reverse active power, inductive reactive power, capacitive reactive power, and apparent
power demand.
5.5 Historical Energy Statistics Function
It can count the historical electric energy in December (including 4 quadrants and
electric energy at various rates)
5.6 Switch Input And Output Function
There are 1 switch output, 1 switch input, and the switch output is relay output, which
can realize "remote control" and alarm output. The switch input can not only collect and
display the local switch information, but also realize the remote transmission function
through the RS485 of the instrument, that is, the "remote signal" function.
5.7 Wireless Communication Function
ADW310 supports 470MHz LORA communication and 4G communication. The
specific agreement on 4G communication can be obtained by contacting the relevant
personnel of our company.
6 Communication Description
6.1 Comunication Protocol
This instrument adopts MODBUS-RTU protocol or DL/T645 protocol. For the
specific protocol format, please refer to the relevant protocol standards, which will not be
repeated here.

9
6.2 MODBUS Communication
When using Modbus protocol for communication, the function code of the read data
command is 03H, and the function code of the write data command is 10H.
The specific register address table is as follows:
Initial Address
(hexadecimal)
Data Item Name
Length
(Byte)
R/W
Remark
1000H
Communication Adress
2
R/W
1～247
1001H
Baud rate
2
R/W
1：1200bps
2：2400bps
3：4800bps
4：9600bps
5：19200bps
6：38400bps
1002H
1 Check Digit 1
2
R/W
low byte
0: no verification
1: odd parity
2: Even parity
high byte
0:1 stop bit
1: 1.5 stop bit
2:2 stop bits
1003H-1005H
Reserved
1006H
645 address
6
R/W
BCD code high order first
1009H
Serial Number
14
R/W
14 ASCII codes
1010H
Wire
2
R/W
0:3P4L 1:3P3L
1011H
Voltage secondary rating
2
R/W
one decimal place V
1012H
Current secondary rating
2
R/W
two decimal places A
1013H-101CH
Reserved
101DH
Password
2
R/W
1-9999
101EH
Pulse constant
2
R/W
Default 1600
101FH
Voltage shield
2
R/W
0~655.35%
1020H
Current shield
2
R/W
0~655.35%
1021H-1025H
Reserved
1026H
Demand Cycle
2
R/W
Unit min (1-30)

10
1027H-102DH
Reserved
102EH
Backlight time
2
R/W
0: always on 1: 1min 2:2min
102FH
Time
10
R/W
Year,
Month Day,
week, hour,
minutes, seconds,
millisecond
1034H-1035H
Reserved
1036H
DO status
2
R/W
Bit0:DO1 Bit1: DO2...
0: open
1: closed
1037H
DI status
2
R
Bit0:DI1 Bit1: DI2...
0: open
1: closed
1038H
First time zone timetable number
First time zone start month, first
time zone day
Second time zone timetable
number
Second time zone start month,
second time zone day
Third time zone timetable
number
3rd time zone start month, 3rd
time zone day
Fourth time zone timetable
number
4th time zone start month, 4th
time zone day
Fifth time zone timetable number
Fifth time zone start month, fifth
time zone day
Sixth time zone timetable number
6th time zone start month, 6th
time zone day
Seventh time zone timetable
number
7th time zone start month, 7th
time zone day
Eighth time zone timetable
number
Eighth time zone start month,
eighth time zone day
12
R/W
Timetable No.:
period 1,
period 2,
period 3,
period 4,
Start month: 1-12
Start day: 1-31
1044H
The first set of timetables,
Each period occupies three bytes,
R/W
Rate:0
1 Sharp，2 Peak

11
Rate, start hour, start minute
3 Flat，4 Valley
Start Hour：0-23
Start Minute：1-59
1059H
The second set of timetables,
Each period occupies three bytes,
Rate, start hour, start minute
R/W
Same as the first set of timetables
106EH
The third set of timetables,
Each period occupies three bytes,
Rate, start hour, start minute
R/W
Same as the first set of timetables
1083H
The forth set of timetables,
Each period occupies three bytes,
Rate, start hour, start minute
R/W
Same as the first set of timetables
1098H
Voltage Ratio
4
R/W
Int
109AH
Current Ratio
4
R/W
Int
109CH-109FH
Reserved
2000H
Voltage
4
R
1 decimal place
unit:V
If the value is U=2200, PT=1;
U=U*PT=2200*0.1*1=220.0V
2001H-200BH
Reserved
200CH
Current
4
R
2 decimal place
If the value is I=200，CT=10;
I=I*CT=200*0.01*10=20A
200DH-2013H
Reserved
2014H
Active power
4
R
Int With symbol
Unit:kW
3 decimal place
If the value is 11720，
PT=10,CT=10;
then value = value*PT*CT=
11720*0.001*10*10=1172.0kW
2016H-201BH
Reserved
201CH
reactive power
4
R
Int With symbol
Unit:kVar
3 decimal place
Analyze the same active power
201EH-2023H
Reserved
2024H
Inspecting power
4
R
Int
Unit:kVar
3 decimal place
Analyze the same active power
2026H-202BH
Reserved
202CH
Power factor
4
R
Int
3 decimal place

12
If the value is 999
then the value=999*0.001=0.999
202EH-2033H
Reserved
2034H
Frequency
4
R
Int
2 decimal place
If the value is 5000,
Then the
value=5000*0.01=50.00H
2036H-
Reserved
2058H
temperature 1
4
R
Int WIth symbol
Unit:0.1℃
205AH
temperature 2
4
R
℃
Int WIth symbol
Unit:0.1℃
3000H
Secondary value of total active
energy
4
R/W
Two decimal places, Kwh
3002H
Secondary value of forward
active energy
4
R/W
Two decimal places, Kwh
3004H
Secondary value of reverse
active energy
4
R/W
Two decimal places, Kwh
3006H
Secondary value of total
reactive energy
4
R/W
Two decimal places, Kvarh
3008H
Secondary value of forward
reactive energy
4
R/W
Two decimal places, Kvarh
300AH
Secondary value of reverse
reactive energy
4
R/W
Two decimal places, Kvarh
300CH
Reserved
300EH
Total active energy sharp
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
3010H
Total active energy peak
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
3012H
Total active energy level flat
value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020

13
3014H
Secondary value of total active
energy valley
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
3016H
Forward active energy sharp
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
3018H
Forward active energy peak
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
301AH
Forward active energy level flat
value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
301CH
Forward active energy valley
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
301EH
Reverse active energy sharp
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
3020H
Reverse active energy peak
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
3022H
Reverse active energy valley
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;

14
Then value=value*PT*CT=
120201*0.01*10*10=12020
3024H
Forward reactive energy sharp
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
3026H
Forward reactive energy peak
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
3028H
Forward reactive energy flat
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
302AH
Forward reactive energy valley
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
302CH
Reverse reactive energy sharp
secondary value
Reverse reactive energy peak
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
302EH
Reverse reactive energy flat
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
3030H
Reverse reactive energy valley
secondary value
4
R/W
Int,Unit:kWh
2 decimal place
If the value is 120201, PT=10,
CT=10;
Then value=value*PT*CT=
120201*0.01*10*10=12020
3032H-
Reserved

15
4006H
Total active power real-time
demand
4
R
Int,Unit:kW
3 decimal place
400CH
Total forward active power
real-time demand
4
R
Int,Unit:kW
3 decimal place
400EH
Total reverse active power
real-time demand
4
R
Int,Unit:kW
3 decimal place
4010H
Total forward reactive power
real-time demand
4
R
Int,Unit:kW
3 decimal place
4012H
Total reverse reactive power
real-time demand
4
R
Int,Unit:kW
3 decimal place
4014H-
Reserved
01D0H-01EB
H
Alarm 1 related data, see chapter 6.3.1 for details
0216H-0249
H
Alarm 2, alarm 3 related data, see chapter 6.3.2 for details
0268H-0169
H
Alarm 2, Alarm 3 alarm status, see chapter 6.3.2 for details
6.3 Alarm Function Related Settings
6.3.1 Alarm 1 Related Parameter Register Address Table
Start Address
(Hexadecimal)
Initial Address
(decimal)
Data Item Name
Length
(Bytes)
R/W
Remark
01EBH
491
Alarm 1 state
2
R
bit0: Over voltage alarm
bit1: under voltage alarm
Bit2: Overcurrent alarm
Bit3: undercurrent alarm
Bit4: Over power alarm
Bit5: Under power alarm
Bit6: Whether DO1 alarm
output
bit7: Whether DO2 alarm
output
Bit8:
Bit9:
Bit10:
Bit11:
Bit12:
Bit13:
Bit14:
Bit15: Power failure report