King Pigeon S270 User manual

S270/S271
User Manual
Ver 3.4.1
Date Issued: 2020-08-18
King Pigeon Hi-Tech. Co., Ltd.
www.iot-solution.com
4G Cellular
IoT M2M RTU

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Table of contents
1. Brief introduction...................................................................................................................................................6
2.Safety Directions.....................................................................................................................................................7
3. Standard Packing List............................................................................................................................................. 7
4. Mainly Features and Specifications....................................................................................................................... 8
4. 1Mainly Features............................................................................................................................................ 8
4. 2 Specifications............................................................................................................................................... 8
5. Physical Layout and Installation Diagram.............................................................................................................. 9
5.1 Control Unit size............................................................................................................................................9
5.2 LED Indicator Definition.............................................................................................................................. 10
5.3 Interface Definition..................................................................................................................................... 11
6. Settings & Operation............................................................................................................................................14
6.1 Start to Configure........................................................................................................................................15
6.2 Setting Self-checking...................................................................................................................................17
6.3 Configurator software interface and running.............................................................................................. 18
Basic Settings.....................................................................................................................................19
Number Settings................................................................................................................................20
Output Settings................................................................................................................................. 21
Incoming Control Settings..................................................................................................................23
DIN Trigger Settings........................................................................................................................... 23
DIN/AIN Alarm Settings..................................................................................................................... 25
AIN Trigger Settings........................................................................................................................... 25
Timer Settings....................................................................................................................................27
Logic Trigger Settings......................................................................................................................... 28
Network Settings............................................................................................................................... 28
Historical Record................................................................................................................................30
7. Example Of Applications...................................................................................................................................... 31
7.1 Device working self-checking...................................................................................................................... 31
7.2 Device connect analog transducer.............................................................................................................. 33
7.3 Cloud configuration, wechat notify application...........................................................................................37
8. Device SMS Command and SMS APP...................................................................................................................38
9. Device GPRS/3G/4G Communication Protocol.................................................................................................... 42
9.1 Device Networks Topology.......................................................................................................................... 42
9.2 Communication Networks...........................................................................................................................42
S270/S271 RTU I/O Register List and Function Code..........................................................................43

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9.3 Message communication sequence............................................................................................................ 45
9.4 King Pigeon IoT RTU Protocol/ Definition Protocol......................................................................................45
9.5 Modbus TCP Protocol..................................................................................................................................46
9.6 Modbus RTU Over TCP................................................................................................................................ 46
9.7 Modbus RTU over TCP Communication Application....................................................................................47
10. MQTT................................................................................................................................................................. 50
11. Upgrade Firmware............................................................................................................................................. 53
12. Cellular Module Upgrade.................................................................................................................................... 53
13. Warranty............................................................................................................................................................ 53
[Warm Tips---Read Before Use]
With the rapid development of industrial Internet of things, it has been
widely used in various fields, but it involves a wide range of knowledge from sensor, intelligent instrument, gateway,
4G wireless communication, to cloud server, large screen display, app, etc
The professional knowledge of users has higher requirements, so please electronic engineers to install and
set.We suggest you be careful reading this article will help you quickly and successfully complete the product setup
and implementation of your application.
1. Working Principle
Taking a few minutes to understand the working principle of this product will help users quickly understand the
working principle of the device and clarify their ideas,and realize the function of these applications.
1) Device Working Principle
This device collects front-end sensor and meter data, and after logical processing and calculation, it is sent to the
mobile phone number set by the user via SMS or sent to the designated cloud server via the data network. The
cloud server identifies the device according to the unique number of the device The relationship between the
device and the user, while pushing cloud data to the APP or WeChat official account bound to the user.
This handbook has been designed as a guide to the installation and operation of S270~S271 GSM/SMS/GPRS/3G/4G
Cellular IoT M2M RTU
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 SIMCard
upgrading due to the technology specifications contained in this handbook.

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2) Functional components of the overview
According to the type of transmitter and sensor supported by the equipment, select the appropriate
model, .Please refer to 1.6 technical parameter description to confirm whether the selected sensor is suitable and
wiring.
RTU device:
It is used to read the sensor data, and then perform the logical processing of the data. The processed data is
transmitted to the cloud platform server via SMS or 4G wireless network. At the same time, the RTU device also
accepts the instructions of the cloud platform server and performs logical processing,drive IO device.
Cloud server
To access the cloud platform, you need to set the server target address on the RTU device side, and then the RTU
device takes the initiative to initiate a connection, the cloud platform must also set the RTU device parameters to
receive the data sent by the RTU device.
After receiving the data, the cloud platform server processes the data according to the rules, stores it in the
database, and pushes it to the computer user or App users
Mobile phone/computer:
First, register an account in the cloud platform and bind the corresponding RTU device. After receiving the data
uploaded from the RTU device, the cloud platform can push it to the corresponding mobile phone app and
computer users after processing.Similarly, mobile app or the instructions sent by the computer will also be sent to
the cloud platform first, and then the cloud platform will be pushed to the RTU device.
2. Device setting step
This product involves front-end sensors, logic processing of equipment itself, cloud platform data management,
app and other parts,Therefore, understanding the setting sequence and steps of this product will help users quickly
and orderly set device parameters and access to cloud platform to realize various application functions of users
Step1: Hardware settings [set locally]
Set parameters according to the manual, IO input and output wiring specifications, logic judgment and control,
RS485 serial port expansion and application, equipment and configuration software and cloud platform server
communication parameter settings, etc.

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Step2: Cloud settings
Only by setting the relevant parameters of the device on the cloud platform can the relationship between the
device and the user be read, and the large screen display can be set content, cloud platform voice alarm,
equipment and video monitoring Association, cloud platform SMS alarm, cloud platform mailbox alarm, and
User management rights and other functions.
Step3: APP download and wechat settings(if need)
Step4: Test and complete the setup.
If you have any questions or settings fail, please read "S27x 4G RTU FAQ" or find the corresponding model in the
help center of http://www.iot-solution.com to find solutions.
【UPGRADE HISTORY】
DATE CONFIGURATOR
VERSION
FIRMWARE
VERSION Author DESCRIPTION
2018.12.21 V3.0 V3.0 KG
1.Modbus address and function code revised;
2.AIN/DIN alarm content setting revised;
3. Interlock event added.
2019.09.24 V3.01 V3.2 ZYH 1. Cellular default settings
2. Delete SDK function
2020.7.24 V3.2 V3.3 CJ
1. Add DIN1-3 low speed pulse counter
2. Add MQTT
3. Add "warm tips"
4. Add notes to user FAQs
5. Modify the configuration software
picture and Di, AI description
6.Fix some errors
2020.8.03 V3.4 V3.4 ZLF 1. Add IO internal schematic block diagram and wiring
2. Modify mqtt parameter settings
2020.8.18 V3.4.1 V3.4.1 CJ 1.Modify the preparation step error before
configuration
Model List
Model DIN AIN Relay TH SD Card Extend I/O tags/Mapping registers Port

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Boolean 16-Bit 32-Bit 64-Bit
S270 2 2 2 1 × × × × USB
S271 4 4 4 1 × × × ×
S272 8 6 4 1 8G 64 64 × × USB/RS485
S275 8 6 4 1 8G 64 128 64 64
Notice 1. Default version is GSM/GPRS module inside.
2. For 3G WCDMA, 4G LTE version, please tell our sales where would you like to use them.
1. Brief introduction
The Cellular IoT M2M RTU is an industrial class, high reliability, high stability, and programmable Remote Terminal
Unit (RTU). It embedded 32-Bit High Performance Microprocessor MCU, inbuilt industrial Cellular module. It
provides 4/2 digital inputs, 4/2 analog or PT100 Resistance Temperature Detector (RTD) inputs, 4/2 relay outputs, 1
ambient sensor input for monitoring onsite temperature and humidity. It can monitoring and operates the I/O

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ports by SMS, APP, Web Server, internet, timers and programmed inter-lock events automatically.
The Cellular IoT M2M RTU inbuilt TCP/IP protocol stack make it suitable for internet of things (IoT) applications, it
can be easily to operate by the provided cloud, app, and web server, or integrated to you IoT applications according
to the TCP/UDP protocol, or integrated to SCADA systems by standard Modbus TCP protocol, too. This is very useful
if you need remote control onsite devices with low cost solution.
The Cellular IoT M2M RTU is design for working in the harsh industrial application environment, widely used in a
variety of industrial automation, security monitoring system, automatically measurement and control system, BTS
monitoring, remote data acquisition, telemetrically systems, automatically control system. It can be used as a
remote switch, remote I/O, remote smart PLC, timer switches.
The Cellular IoT M2M RTU can be used as remote access control for BTS monitoring, the authorized users can open
the gate or turn on the machine with a free charge call at specified time, this is useful for daily maintenance to save
the time of traditional authorized.
Typically applications:
BTS Monitoring, Security Alarm System applications, Supervision and monitoring alarm systems, Automatic
monitoring system, Vending Machines security protection, Pumping Stations, Tanks, Oil or Water levels, Buildings
and Real Estate, Weather Stations, River Monitoring and Flood Control, Oil and gas pipelines, Corrosion protection,
Temperatures, water leakage applications, Wellheads, boat, vehicle, Energy saving, street lights control system,
Valve controls, Transformer stations, Unmanned machine rooms, Control room application, Automation System,
M2M, Access Control System, etc.
2.Safety Directions
Safe Startup
Do not use the unit when using GSM/3G/4G equipment is prohibited or might bring disturbance or
danger.
Interference
All wireless equipment might interfere network signals of the unit and influence its performance.
3. Standard Packing List
RTU X1; AC/DC Adaptor X1; GSM/3G/4G Antenna X1;User Manual X1; PC Configurator X1 .
Note: The package does not include any SIM card.
Optional: 35mm Standard DIN rail fixed Bracket

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4. Mainly Features and Specifications
4. 1Mainly Features
GSM/GPRS/3G/4G network communication, can be operated from anywhere, no distance limitation;
Wide range power supply 9~36VDC with over voltage and phase-reversal protection;
Embedded ARM Cortex -M4 32 Bit RISC Core, 168 MHz inside, RTOS system, reliable performance
with in-built watchdog;
2/4 digital inputs, compatibles dry and wet contact. Logic level: 0~0. 5V or short circuit treated as close,
+3~30V or open circuits treated as open. DI0-3 can be used as counter, sampling frequency is 1Mhz, DI1 can
be used as Arm/Disarm;
2/4 relay output (5A/30VDC,5A/250VAC), can auto control by timer, alarm-link and remote control by SMS,
cloud. The first DO can set time to control by authorize number;
1 temperature & humidity sensor input for monitoring onsite environment, the sensor model is AM2301,
Measures temperatures from -40-80°C,0.5°C accuracy, Relative Humidity from 0-99RH%, accuracy is 3%;
2/4 analog inputs, 12bits resolution, supports 0-5V, 0-20mA, 4-20mA output transducers;
Powerful SMS function: threshold high SMS alert, SMS set, SMS inquiry;
Inbuilt 1 DC output for external transducers to save wiring cost;
Automatically resend the data while communication interrupt or failure, and failure will alert by SMS text to
users;
Supports remotely restart the RTU, and configure& operate it by SMS commands remotely;
10 SMS Alert and auto dial numbers for receiving alarm message, can program to receive specified alarm
message. The authorized numbers also can dial to open the door or turn on/off machine with a free charge
call at the specified time;
Inbuilt inter-lock logic programmer and powerful timer program function;
Modular structure design, replace a module can upgrade the network from 2G to 3G/4G or 3G to 4G;
Support SMS, dial, GPRS, 3G , 4G network for alert, USB port for configuration and upgrade firmware;
Inbuilt large capacity rechargeable backup battery, alert when external power failure,standby time is 5 hours;
Support TCP/UDP,MQTT, Modbus TCP, Modbus RTU over TCP, King Pigeon IoT RTU protocol and data
transparent transmission function;
Using metal shell, protection class IP30. Metal shell and system security isolation, especially suitable for
industrial applications in the field;
L140 * W88 * H30mm, compatible wall installation and DIN35mm industrial rail installation.
4. 2 Specifications
Item Reference Scope
DC
Power
supply
Standard
adapter:
DC
12V/2A
Range
9-36VDC

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Power
consumption
Standby:12V/50mA;
Working
Max.:
12V/150mA
GSM
Frequency
850/900/1800/1900Mhz
3G/4G Optional: WCDMA/TDD-LTE/FDD-LTE
TCP/IP
stack
TCP,UDP
SIM interface Supporting 3V and 1.8V SIM Card
External
antenna
SMA
Antenna
interface,
50
Ohm,
Gain:
3dB
Serial Interfaces 1 USB Port
Protocols SMS, GPRS UDP,TCP, MQTT,Modbus RTU over TCP and King Pigeon RTU
protocol.
Digital Inputs
2/4 Digital input, NC/NO type, All can be used as Pulse Counters; DI0 as
a high-speed pulse counter, sampling frequency: 1MHz;
DI1~3 as a low-speed pulse counter, the anti-shake time can be set to
1~2000ms, the default is 1ms;
DI1 as arm and disarm function;
Isolation protection:2KVrms
Analog Inputs 2/4 Analog Inputs. 12 bit resolution, 0-5V or 0-20mA or 4-20mA;
Input resistance:>1M ohms
Temp.&Hum Inputs Temperature range: -40°C to +80°C, Humidity Range: 0~100%RH;
Relay Outputs 2/4, Rated: 5A/30VDC,5A/250VAC
Isolation
protection:2KVrms
Power Outputs 1 Port, for external device;
Backup
Battery
3.7V
900mAH
Temperature range -20-+70 °C
Humidity
range
Relative
humidity
95%
(condensation
free)
Exterior dimension 140mm*88mm*30mm
Net Weight 350g
5. Physical Layout and Installation Diagram&Wiring
5.1 Control Unit size

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5.2 LED Indicator Definition
LED Indicator Definition
Power RTU status indicator, LED ON when switched RTU on..
Cellular network indicator. When 2G register network, off 2 seconds, on 0.5s and
so on; When 3G 4G register network, on 2s, off 0.5s...Flicks quickly means data