King Pigeon RTU5023 User manual

Inquiry Onsite value with a FREE
Call or SMS!
High-Low Threshold alarm with
SMS text Message alert!
Interval Report Status to Your
Mobile Phone by SMS!
User Manual
Ver 2.4
RTU5023/6/7/8/9
Date Issued: 2019-11-30
All rights reserved by King
Pigeon Hi-Tech. Co., Ltd.
www.GPRS-M2M.com
GSM/GPRS/3G/4G/Cloud
Temperature&Humidity&Analog
&Voltage&Power Status Alarm

Page 2of 14 King Pigeon Hi-Tech. Co., Ltd. Ver 2.4
Temperature&Humidity&Analog
&Voltage&Power Status Alarm
Table of contents
1. Brief introduction................................................................................................................................3
2. Safety Directions.................................................................................................................................3
3. Standard Packing List......................................................................................................................... 4
4. Mainly Features.................................................................................................................................. 4
5. Technical specifications...................................................................................................................... 4
6. Physical Layout................................................................................................................................... 5
7. Reset the unit......................................................................................................................................7
8. Settings&Operation............................................................................................................................7
9. Data Communication Protocol......................................................................................................... 14
10. Warranty.........................................................................................................................................14
【UPGRADE HISTORY】
DATE
VERSION
DESCRIPTION
2015-09-10
Ver1.0
RTU5023 Origin Version
2018-08-01
Ver2.0
RTU5023/6/7/8/9 New Version
2018-08-11
Ver2.1
Add continue dialing function(avoid alarm calling is transferred to
voicemail leads to user missed alarm reminding)
2019-01-24
Ver2.2
Upgrade dial & data offline reconnection function;Modify
RTU5023/5026/5027 Alarm Verify Time to”0”(Alarm immediately).
2019-09-20
Ver2.3
Modify the server default parameters, increase the default
registration mechanism(Login Message)
2019-11-30
Ver2.4
Add 5023/5026/5027 Alarm Verify Time modification instruction.
***Strongly recommend you use the APP to program it***
(SMS APP)
This handbook has been designed as a guide to the installation and operation of RTU5023,RTU5026,RTU5027,
RTU5028,RTU5029 temperature&humidity&analog&voltage&power status alarm and monitor.
Statements contained in the handbook are general guidelines only and in no way are designed to supersede the
instructions contained with other products.
We recommend that the advice of a registered electrician be sought before any Installation work commences.
King Pigeon Hi-Tech.Co., Ltd, its employees and distributors, accept no liability for any loss or damage including
consequential damage due to reliance on any material contained in this handbook.
King Pigeon Hi-Tech.Co., Ltd, its employees and distributors, accept no liability for GSM Network upgrading or SIM
Card upgrading due to the technology specifications contained in this handbook.

Page 3of 14 King Pigeon Hi-Tech. Co., Ltd. Ver 2.4
Temperature&Humidity&Analog
&Voltage&Power Status Alarm
【Model List】
Model
GSM/3G/4G
Description
Input/Output Type
DC Input
RTU5023
Optional
Environmental Monitoring Alarm
AM2301 Temperature&Humidity Sensor
9~36VDC
RTU5026
Temperature Monitoring Alarm
DS18B20 Temperature Sensor
RTU5027A
Analog Transducer Monitoring Alarm
4~20mA Analog Input
RTU5027V
Analog Transducer Monitoring Alarm
0~5V Analog Input
RTU5028
AC/DC Power Monitoring Alarm
12VDC Output
RTU5029A
Phase Loss Monitoring Alarm
3 Phase Input,12VDC Output
RTU5029B
Phase Loss Monitoring Alarm
Single Phase Input ,12VDC Output
1. Brief introduction
RTU5023/6/7/8/9 provide 1 input for temperature,humidity,analog,power voltage,power status monitoring and
alarm.When the temperature, humidity, power voltage exceed high threshold or low threshold value, will send
SMS alert to up to 10 preset mobile phone immediately.
Just dial from authorized user number, the Monitor Alarm unit will reject at the first “Ring”, no communication cost,
and then return the current temperature, humidity, power status or voltage.It can report current status interval or
daily.Moreover,it can also support Modbus RTU Over TCP and Modbus TCP to connect to cloud platform,then
monitor the current status in real time through GSM/3G/4G network.
RTU5023/6/7/8/9 Monitor Alarm unit can be used for temperature,humidity,4~20mA/0~5V analog signal,DC
voltage,3 phase power status,single phase power status monitoring and alarm, suitable for classrooms, public
places, hospitals, stations, Food warehouses, offices, factories, libraries, laboratories, etc., and any place that
requires and supports monitoring.
2. Safety Directions
Safe Startup
Do not use GSM unit when using GSM equipment is prohibited or might bring disturbance or
danger.
Interference
All wireless equipment might interfere network signals of GSM unit and influence its performance.

Page 4of 14 King Pigeon Hi-Tech. Co., Ltd. Ver 2.4
Temperature&Humidity&Analog
&Voltage&Power Status Alarm
3. Standard Packing List
Monitor Alarm unit X 1; Antenna X 1; AC/DC adaptor( DC12V 1.5A ) X1 ;User manual X 1.
Note: The package does not include any SIM card.
Optional:
AM230x Temperature &Humidity Sensor, cable length 1m,5m,20m
DS18B20 Temperature Sensor,cable length 1m,5m,10m,20m
SR-x Siren
DIN 35mm Standard DIN rail fixed Bracket:
4. Mainly Features
GSM/GPRS/3G/4G network communication, can be operated from anywhere, no distance;
Multiple applications:temperature,humidity,power supply voltage,analog signal,3 phase power status,
single-phase power status, etc.;
Inbuilt MCU monitoring power supply input voltage value, measure range is 0~36V, no need additional sensor
to save cost;
Up to 10 authorized phone numbers, 5 can be used to receive call or SMS,and 5 can be used to call and SMS
while alarm occurrence;
Can set timer report and every x hours automatically send its status/value to the first authorized number;
Support remotely read historic data via SMS;
Rechargeable backup battery inside can last 8 hours;
Modular structure design, replace a module can upgrade the network from 2G to 3G/4G or 3G to 4G;
Compatible wall installation and DIN35mm industrial rail installation;
Support Modbus RTU Over TCP and Modbus TCP, can be connected to cloud platform.
5. Technical specifications
Item
Reference Scope
DC Power supply
Standard adapter:12VDC，Range 9~36VDC
Power consumption
Standby：20mA@12V；Working Max：150mA@12V

Page 5of 14 King Pigeon Hi-Tech. Co., Ltd. Ver 2.4
Temperature&Humidity&Analog
&Voltage&Power Status Alarm
6. Physical Layout
6.1 LED Indicator Instruction
LED Indicator Instruction
Cellular network indicator：
2G module,flashing quickly (flash per 0.8s) means searching for cellular or no network;
GSM/3G/4G
GSM frequency: 850/900/1800/1900MHz
3G/4G: Optional: WCDMA/TDD-LTE/FDD-LTE
SIM interface
Support 3V SIM Card
External antenna
SMA Antenna interface, 50 Ohm, Gain: 3dB
Protocol
Modbus RTU Over TCP,Modbus TCP
Temp.&Hum Inputs
AM230x:temperature range -40℃~80℃,accuracy±0.5℃,
humidity range 0~99%RH,accuracy ±3%RH
DS18B20:temperature range -55℃~125℃,accuracy ±0.5℃
Analog input
4~20mA or 0~5V
Phase power input
Phase power voltage:100~500VAC
Backup Battery
3.7V/900mAh,can last 8 hours
Working temperature
-10℃~60℃
Working Humidity
Relative humidity 95% (condensation free)
Exterior dimension
70mm * 88mm * 30mm

Page 6of 14 King Pigeon Hi-Tech. Co., Ltd. Ver 2.4
Temperature&Humidity&Analog
&Voltage&Power Status Alarm
flashing slowly(flash per 2s) means registered successfully.
3G/4G module,when searching for cellular or no network ,the light will 2seconds flick once;
registered successfully will be on 2s,off 1s...
Flicks quickly means data transmission.
Power indicator：LED ON when connect power;otherwise,it is OFF
Alarm Indicator:Alarm will ON.;Normally is OFF;
Status Indicator: Arm is ON;Disarm is OFF
6.2 Interface Instruction
RTU5023 interface RTU5026 interface RTU5027 interface
RTU5028 interface RTU5029 interface
Interface instruction
9~36V DC IN
+
DC9~36V positive input
–
DC9~36V negative input
T&H Sensor Input
（RTU5023）
VCC
DC3.3V output,connected with AM230x VCC power wire（red）
Data
Connected with AM230x Data wire（yellow)
GND
Connected with AM230x GND wire（black or white）
Temperature Sensor Input
(RTU5026)
VCC
DC3.3V output,connected with DS18B20 VCC power wire（red）
Data
Connected with DS18B20 Data wire（yellow）
GND
Connected with DS18B20 GND wire（black or white）
Analog Input
（RTU5027）
+
4~20mA or 0~5V analog positive input
-
4~20mA or 0~5V analog negative input
12VDC Output
（RTU5028、RTU5029）
+
12VDC positive output
-
12VDC negative output
3/Single-Phase Electric Input
（RTU5029）
A/L
Three- phase A phase input or single-phase fire wire input
B
Three-phase B phase input
C
Three-phase C phase input
N
Three-phase or single-phase null wire input
ANT
GSM/3G/4G antenna interface
6.3 Backside Switch & Card Slot
At the backside of the panel, please use the tool to remove the screw, and you can see switch button, RESET
button(reset button has the function: 1.upgrade,press it and switch on the device will enter upgrade
state;2.reset,press it then hold on 3 seconds in the state of power on will reset ) and card slot as below:

Page 7of 14 King Pigeon Hi-Tech. Co., Ltd. Ver 2.4
Temperature&Humidity&Analog
&Voltage&Power Status Alarm
Switch OFF Switch ON
7. Reset the unit
(1) Switch on the device,press and hold RESET button for 3 seconds,after power indicator flash 3 times ,the device
will reset successfully.
(2) Sending SMS command ”password+RESET ”,receive returns SMS “Reset successfully”,means device is reset
successfully.
8. Settings&Operation
***Strongly Recommend using the APP to program it***
Notice:
1. The default Password is 1234.
2. The unit cannot support PIN Code Protected SIM Card.
3. You can program the unit with SMS commands using your phone.
4. Remember that commands must be CAPITAL LETTERS. It is PWD not pwd, CAP not Cap etc. Don't add
spaces or any other character.
5. The PWD in the commands is means the password, when you use it, please in stand of it by the digital
number; the capital letters PWD is the command letter, use PWD directly.

Page 8of 14 King Pigeon Hi-Tech. Co., Ltd. Ver 2.4
Temperature&Humidity&Analog
&Voltage&Power Status Alarm
6. In some GSM/3G operators they use different SMS parameter; the units can’t return the SMS
confirmation in some gsm operators, but it can performance the functions correctly. Also, you can try to
add the country code before the number, see the below settings:
For example:
E.g.: the country code is 0086, or +86.
The user cell phone number is 13600000000 and has been assigned as a SMS Alert number, the sim card
number in the panel is 13512345678.
When you setup the number as the authorized number, please setup as 008613600000000 or
[phone]. Not 13600000000.
7. If the password is correct but the command is incorrect, the RTU502x will return: SMS Format Error,
Please check Caps Lock in Command! So please check the Command, or add the country code before the
telephone number or check the input is in ENGLISH INPUT METHOD and CAPS LOCK. If password
incorrect then will not any response SMS.
8. Once the GSM/3G Unit received the SMS Command, will return SMS to confirmation, if no SMS return,
please check your command or resend again.
9. The SMS commands that you will certainly use in the GSM units are the following:
**SMS Commands For Program and Operation the RTU50236789**
1) Setup the RTU502x SIM Card Number (Max 21 digits)
This number is used for automatically adjust the time from GSM Operator.
Command
Return SMS
Example
PWD+TEL+x+#
x stand for the unit phone number,max 21 digits
Set success!
1234TEL[phone]#
Stands for the unit phone number is 13570810254
2) Setup RTU502x system Time
Command
Return SMS
Example
Setup
PWD+D20xx-yy-zz+Thh:mm or
PWD+Dxxyyzz+Thhmm
Notice:
xx(year),yy(month),zz(day),hh(hour),
mm(minute)
xx(Y)xx(M)xx(D)xx(H)xx(M)
1234D2018-01-02T03:04
1234D180102T0304
Stands for 03:04, January
2,2018
Inquiry
PWD+D#T# or PWD+D
xx(Y)xx(M)xx(D)xx(H)xx(M)）
3) Modify Password (4digits, Default is: 1234)
Command
Return SMS
Example
PWD+P+new password
[new password],This is the New Password,
please remember it carefully.
1234P4321 stands for change
password from 1234 to 4321
4) Armed or Disarmed
Command
Return SMS
Example
Armed
PWD+AA
Armed
Armed stands for while alarm occurrence, will send SMS or dial
to alert users.

Page 9of 14 King Pigeon Hi-Tech. Co., Ltd. Ver 2.4
Temperature&Humidity&Analog
&Voltage&Power Status Alarm
Disarmed
PWD+BB
Disarmed
Disarmed stands for while alarm occurrence, will not send SMS
or dial to alert users.
5) Setup Authorized User number (Total 10 authorized number, each number max 21 digits.)
When alarm/Recovery occurrence, the RTU502x will send predefined SMS to the 1st ~5th numbers, and
send SMS also dial 6th ~10th numbers, till any one answer it or cycle dial 3 times.
Just dial from Authorized User number, the RTU502x will reject at the first “Ring”, no communication cost,
and then return the current temperature, humidity, power voltage by SMS.
The 1th number can also receive daily report SMS.
Command
Return SMS
Setup
PWD+A+x+T+y
(x= 01~10,must be 2 digits,stands for series number)
(y stands for phone number,max 21 digits,supports add country code,e.g.
+86 or 0086)
e.g.: 1234A03T008613570810254 to setup 008613570810254
as the 3rd number.
1: ---
2: ---
3: 13570810254
4: ---
Inquiry
PWD+A
Return All numbers
Remove
PWD+A+x
6) Setup Alarm Parameter 1
Command
Return SMS
Setup Channel
Name
PWD+AIN+x+T+y
x=1,2,3;1 stands for temperature or analog input,2 stands for
humidity,3 stands for voltage(below x are the same)
y stands for channel name,max 20 characters
Temperature/AIN:y
Humidity:y
Voltage:y
Inquiry
PWD+AIN123
Setup Threshold
Value
PWD+AINR+x+L+y+H+z+#
y stands for low threshold value;z stands for high threshold value,if
y=z,will not alarm
RTU5023 valid temperature range:-400~800(stands for 40℃~80℃);
RTU5026 valid temperature range:-550~1250(stands for -55℃
~125℃);
Humidity valid range:0~100(stands for 0%RH~100%RH);
Voltage valid range:0~370(stands for 0V~37V);
Analog signal range:-32767~32767(stands for -3276.7~3276.7);
When sending SMS command to setup,except humidity should be
setup according to actual value,the temperature, voltage and analog
value should be setup at 10 multiples of actual value.
If setup by APP, all of them can be setup according to actual value.
Recommended to use the APP for setting.
E.g.1234AINR1L-120H356# to setup temperature low threshold as
-12.0℃,high threshold as 35.6℃;
1234AINR2L10H90# to setup humidity low threshold as 10%RG,high
threshold as 90%RH
Temperature/AIN:
low:y,High:z.
Humidity:
Low: y,High: z.
Voltage:
Low: y,High: z.
Inquiry
PWD+AINR

Page 10 of 14 King Pigeon Hi-Tech. Co., Ltd. Ver 2.4
Temperature&Humidity&Analog
&Voltage&Power Status Alarm
Setup Analog
Measurement
value range
(Used for RTU5027)
PWD+AINML+y+H+z+#
y,z=-32767~32767;y stands for min value,z stands for max value;
RTU5027A default min is 40,max is 200(corresponds to 4mA,20mA);
RTU5027V default min is 0,max is 50(corresponds to 0V,5V)
When sending SMS command to setup,the value should be setup at
10 multiples of actual value;
If setup by APP, can be setup according to actual value.
Recommended to use the APP for setting.
E.g.1234AINML-13579H24680#to set up min value as -1357.9,max
value as 2468.0
AIN: Min:y,
Max:z
Inquiry
PWD+AINM
Setup Alarm Verify
Time
PWD+AIN+x+Q+y
x=1,2,3;1 stands for temperature or analog input,2 stands for
humidity,3 stands for voltage
y=0~255 seconds; temperature, humidity, analog quantity default 5
seconds, voltage default 2 seconds
AINQ1:y(S)
AINQ2:y(S)
AINQ3:y(S)
Inquiry
PWD+AINQ
Setup Alarm Parameter 2
Command
Return SMS
Setup Device Name
PWD+DN+y
y stands for device name,max 60 characters
Device Name:y
Inquiry
PWD+DN
Setup Alarm Verify
Time
RTU5028: PWD+AINQ+y
RTU5029: PWD+AIN+x+Q+y
x=1,2; 1 stands for external power supply,3 stands for
single/three phase power
y=0~65535 seconds,default 2 seconds,0 stands for alarm
immediately
The verification time of
External Power Goes
OFF: y Seconds
AINQ1:y Seconds
AINQ2:y Seconds
Inquiry
PWD+AINQ
Setup Power Failure
Alarm Content
RTU5028:PWD+AINA+y
RTU5029:PWD+AINA+x+T+y
x=1,2; 1 stands for External power supply,3 stands for
single/three phase power
y stands for power failure alarm content,max 40 characters
Alarm Content : y
AINA1: y
ANIA2: y
Inquiry
PWD+AINA
Setup Power
Recover Content
RTU5028: PWD+AINN+y
RTU5059: PWD+AINN+x+T+y
x=1,2; 1 stands for External power supply,3 stands for
single/three phase power
y stands for power recovery alarm content,max 40 characters
Recover Content: y
AINN1: y
ANIN2: y
Inquiry
PWD+AINN
Setup 12V Output
Time
PWD+AOT+y
y=0~65535 seconds,default 120 seconds,0 stands for always
12V Output: y Seconds

Page 11 of 14 King Pigeon Hi-Tech. Co., Ltd. Ver 2.4
Temperature&Humidity&Analog
&Voltage&Power Status Alarm
keep output
Inquiry
PWD+AOT
Open 12 V Output
PWD+AON
12V Output: ON/OFF
Close 12 V Output
PWD+AOF
Inquiry
PWD+AOE
7) Setup Daily Report Time (Default is 10:00AM)
The daily report is everyday report the RTU502x current status by SMS to the 1st Authorized number.
The content is same with return SMS of command “PWD+EE”.
Command
Return SMS
Setup
PWD+DRT+hh:mm
hh stands for hour;mm stands for minute,must be 2 digits
Daily SMS Report at:hh:mm
Inquiry
PWD+DRT
Daily SMS Report at:HH:MM
Delete
PWD+DRTDEL
Daily SMS Report at:
8) Setup Interval Report Time
The interval report is interval to report the current status by SMS to the 1st Authorized number.
The content is same with return SMS of command “PWD+EE”.
Command
Return SMS
Setup
PWD+DT+x
(xxx=001-998hours, must be 3digits,default 999,stands for disable
report)
Report status every xxx hours
Inquiry
PWD+DT
9) Inquiry Current Status (We recommend user inquiry it by call from authorized numbers)
Command
Return SMS
PWD+EE
Armed/Disarmed;
Device Name;(for RTU5028/9)
A Phase:[Normal/Loss]; (for RTU5029A)
B Phase:[Normal/Loss]; (for RTU5029A)
C Phase:[Normal/Loss]; (for RTU5029A)
Single Phase:Normal/Loss;(for RTU5029B)
External Power Normal/Failure: Current value;(for RTU5028/9)
AIN:Current Value,[Normal/Higher/Lower];(for RTU5027)
Temp:xxxxC,[Normal/Higher/Lower];(for RTU5023/6)
Humi:xxxxRH%,[Normal/Higher/Lower];(for RTU5023)
Volt:xxxxVDC,[Normal/Higher/Lower];(for RTU5023/6/7)
GSM Signal Value:
IMEI:
Model:
Version:
10) Inquiry Historic Record (Only can inquiry the latest 100 alarm events.)
Command
Return SMS
Example

Page 12 of 14 King Pigeon Hi-Tech. Co., Ltd. Ver 2.4
Temperature&Humidity&Analog
&Voltage&Power Status Alarm
PWD+HIS+x
(x=1-100,stands
for inquiry qty)
[IMEI Code as Device ID]
2015-07-15,18:18 1:[Current Value] °C,[Higher/Lower/Normal]
2015-07-15,18:18 2: [Current Value]RH%,[Higher/Lower/Normal]
2015-07-15,18:18 3: [Current Value]VDC,[Higher/Lower/Normal]
(0: Analog input, 1: Temperature, 2: Humidity, 3: Voltage. Each SMS will
include one IMEI Code as Device ID.)
PWDHIS5 to
read the latest 5
historic record.
11) Remotely Reboot
Command
Return SMS
Example
Setup Periodicity Reboot
PWD+REBOOT+x
(xxxx=0-9999 hours,
default is 160 hours)
Reboot: x Hours
1234REBOOT3 The device will be
reboot automatically for every 3
hours.
Inquiry
PWD+RE
Reboot Manually
PWD+RT
No return SMS
12) Remotely Reset
Command
Return SMS
Remotely Reset
PWD+RESET
Reset successfully
13) Setup Device ID
Command
Return SMS
Setup
PWD+ID+x
x=0~65535,default is 1.
If the device choose Modbus protocol,x=1~247
ID:x
Inquiry
PWD+IDE
14) Setup GPRS/3G/4G Parameter
Command
Return SMS
Setup
PWD+AP+x+#+y+#+z
x stands for APN,y means user name,z means password
APN：x
User name：y
Password：z
Inquiry
PWD+AP
Delete
PWD+APDEL
15) Setup Server IP/Domain Name/Port Parameter
Command
Return SMS
Setup
PWD+IP+x+*+y
x stands for server IP address or domain name,y=0~65536,stands for server
port.
Server IP:x
Port:y
Inquiry
PWD+IP
Delete
PWD+IPDEL
16) Setup GPRS Communication Protocol
Command
Return SMS
Setup
PWD+GPRSON+x
x=1,2,3;1 stands for Modbus RTU Over TCP protocol,2 stands for Modbus
GPRS/3G/4G:x

Page 13 of 14 King Pigeon Hi-Tech. Co., Ltd. Ver 2.4
Temperature&Humidity&Analog
&Voltage&Power Status Alarm
TCP protocol
Inquiry
PWD+INTE
Delete
PWD+GPRSOFF
Tips:
If choose Modbus RTU Over TCP protocol, the Server will revert to the setting that domain name is
modbusrtu.kpiiot.com, port is 4000;
If choose Modbus TCP protocol, the Server will revert to the setting that domain name is mbtcp.dtuip.com,port is
6655;
If want to connect own server, pls setup GPRS communication protocol first,then setup server parameter.
17) Setup GPRS Online
Command
Return SMS
Setup
PWD+GPRSonline
GPRS Online
18) Setup the no data offline reconnection time
Command
Return SMS
Setup
PWD+RECONT+x
x=60~65535 seconds,default is 120 seconds,Indicate if no data sent
within 120 seconds after the device is connected to the server, then it
will be automatically disconnected and reconnected to the server.
Reconnect time:x seconds
Inquiry
PWD+RECONT
19) Setup the Login Message
Command
Return SMS
Setup
PWD+RTP+x
x stands for Login Message content,max 50 characters, default is "IMEI
code+0"
Registration package:x
Inquiry
PWD+RTE
20) Setup the Heartbeat
Command
Return SMS
Setup
PWD+HET+x
x stands for Heartbeat content,max 20 characters,default is req
Heartbeat package
content: x seconds
Inquiry
PWD+HEE
21) Setup the Heartbeat Interval
Command
Return SMS
Setup
PWD+HT+x
x=0~9999 seconds,default is 60 seconds,0 stands for not upload
Heart Pack Period:x
seconds
Inquiry
PWD+HTE
22) Setup continue to call next authorize number, even answering if without press a key (avoid alarm calling is
transferred to voicemail leads to user missed alarm reminding)
Command
Return SMS
Not continue
dialing (Default)
PWD+COFF#
Once anyone answered, the device will not call next authorized
number,if nobody answer will circular dialing for 3 times .
Set successfully

Page 14 of 14 King Pigeon Hi-Tech. Co., Ltd. Ver 2.4
Temperature&Humidity&Analog
&Voltage&Power Status Alarm
Continue dialing
PWD+CON#
After answering, the device will continue to call next authorize
number without pressing the key on the phone,press * or # will
stop calling next authorize number
Set successfully
9. Data Communication Protocol
The RTU5023/6/7/8/9 supports GPRS/3G/4G data transfer to cloud server,supports Modbus RTU Over TCP and
Modbus TCP protocol.
5023、5026、5027 Modbus Address Instruction
Register Address
Definition
Data Type
Function
Code
Data Description
0
Analog/Temperature
16bit signed int
4
Actual=Register Value/10
1
Humidity
16bit signed int
4
Actual=Register Value
2
Voltage
16bit unsigned int
4
Actual=Register Value/10
5028、5029 Modbus Address Instruction
Register Address
Definition
Function
Code
Data Description
0
12V Output
1、5
0 means Close，1 means Open
0
External Power Status
2
0 means External Power Failure,
1 means External Power Normal
1
A Phase Status/Single Phase Status
2
0 means A Phase Loss/Power Failure,
1 means Normal
2
B Phase Status
2
0 means B Phase Loss，1 means Normal
3
C Phase Status
2
0 means C Phase Loss，1 means Normal
10. Warranty
1) This system is warranted to be free of defects in material and workmanship for one year.
2) This warranty does not extend to any defect, malfunction or failure caused by abuse or misuse by the
Operating Instructions. In no event shall the manufacturer be liable for any alarm system altered by
purchasers.
The End!
Any questions please help to contact us feel free.
Http://www.GPRS-M2M.com