King Pigeon D224 User manual

User Manual
Ver 1.0
D224
Date Issued: 2019-07-08
All rights reserved by King
Pigeon Hi-Tech. Co., Ltd.
www.IOT-Solution.com
Serial Device Server D224
RS232/485/TTL To TCP/IP

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Serial Device Server D224
RS232/485/TTL To TCP/IP
Table of Contents
1. Brief introduction......................................................................................................................................................... 0
2.Safety Directions........................................................................................................................................................... 0
3. Standard Packing List................................................................................................................................................... 0
5.Physical Layout and Installation Diagram.....................................................................................................................0
6. Programming and Operation....................................................................................................................................... 0
7.Reset..............................................................................................................................................................................0
8.Application.................................................................................................................................................................... 0
9.Upgrade Firmware........................................................................................................................................................ 0
10.Warranty..................................................................................................................................................................... 0
【UPGRADE HISTORY】
DATE
FIRMWARE VERSION
HARDWARE VERSION
DESCRIPTION
2019.07.08
V1.0
V1.0
First edition
This handbook has been designed as a guide to the installation and operation of Serial Server D224.
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.

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Serial Device Server D224
RS232/485/TTL To TCP/IP
1. Brief introduction
The D224 Serial Device Server is a useful device to convert RS485/232/TTL data to TCP/IP network, it also can be
used as converting Modbus RTU to Modbus TCP, and performs as a serial port converter to create the
communication from RS485 to RS232 or TTL, moreover, it can be used as a repeater for two serial device
communication directly, e.g.: PLC to PLC.
The D224 Serial Device Server provide a feature that can allow users to select master or slave operation mode for
each serial port. It not only allows an Ethernet master to control serial slaves, but also allows serial masters to
control Ethernet slaves. It accepts up to 5 connections to communicate at the same time, no matter the Serial
Device Server be used as Server or Client.
The D224 Serial Device Server provides a simple and cost-effective way to bring the advantage of remote
management and data accessibility to thousand of devices that can not connect to a network. It is the most
popular industrial internet of things (IIOT) gateway.
The serial device server suitable for below applications:
Serial Devices to TCP/IP Communication and IoT Cloud Platform;
Serial Devices to Serial Devices communications, e.g.: PLC to PLC;
Equipment networking in the field of access control security;
Various types of configuration software and device communication interfaces;
Networking of transmitters such as water level, water pressure, flow rate and flow rate;
Data transmission in agriculture, water, coal mines, etc.;
Remote monitoring and program download of various PLCs;
Data collection and monitoring of various types of electric meters and meters;
Collection of parameters such as wind speed, wind, rainfall and temperature of the meteorological station;
Remote data acquisition and monitoring of solar power stations and smart charging piles;
Intelligent power grid data transmission;
Intelligent agricultural data collection and monitoring;
Intelligent breeding data collection and monitoring;
Intelligent traffic data collection and monitoring;
Intelligent industrial automation data transmission.

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Serial Device Server D224
RS232/485/TTL To TCP/IP
2.Safety Directions
Reasonable Use
Please install the product at suitable places as described in the product documentation.
Use Qualified Maintenance Service
Maintenance can be carried out only by qualified maintainer.
3. Standard Packing List
Serial device server D224 unit X1; AC/DC Adaptor X1; Network cable(0.5m) X1; RS232 cable X1.
Optional: 35mm Standard DIN rail fixed Bracket
4. Mainly Features
Wide working voltage, support 9-36V DC power supply, interface is DC Q2.1 jack and terminal block, and with
anti-reverse protection design;
Built-in industrial grade ARM®CortexTM core, high performance, stable and reliable;
Support 1 channel RS-232, 1 channel RS-485 and 1 channel TTL;
Serial port baud rate supports 4800bps-128000 bps,supports None, Odd, Even check mode;
Supports 1 channel RJ45 Ethernet port, with link and data indicator, built-in isolation transformer, up to 2KV
electromagnetic isolation;
Support RESET button to recovery the parameters to factory defaults (long press for 3 seconds to recover),
prevent parameter setting error;
Metal shell, protection class IP30, suitable for industrial control applications;
The configuration software supports WIN XP, WIN 7, WIN 8 and WIN 10, friendly interface;
Support static IP address or DHCP to obtain IP address automatically, and query the devices in the network
through UDP broadcast protocol;
Support self-defined device name for easy user identification;
Support server domain name DNS;
Built-in TCP/IP protocol stack, support transparent transmission and Modbus RTU to Modbus TCP Protocol;
Supports multiple working modes:TCP Server, TCP Client, UDP Server, and UDP Client;

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Serial Device Server D224
RS232/485/TTL To TCP/IP
Supports up to 5 TCP/UDP Clients and 5 TCP/UDP Servers connections simultaneously;
Supports definition login message and heartbeat package function, can facilitate cloud platform for ID
identification and data communication;
Support automatically connect and reconnect the server after disconnection;
Support serial port strategy function, data path is free to choose, for example: RS232 and RS485 bi-direction
communication (RS232 ⇄RS485), RS232 and server 1 bi-direction communication (RS232 ⇄server 1);
Can be used as a repeater for two serial device communications directly, e.g.: PLC to PLC;
Support firmware upgrade through TTL, firmware update is more convenient;
Small in size, 96mm*68mm*25mm, and supports wall mounting and DIN 35mm rail mounting.
5.Physical Layout and Installation Diagram
5.1 Control Unit physical layout
(Front view) (Left side view) (Right side view)
(Back view)
Bottom view
Vertical view

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Serial Device Server D224
RS232/485/TTL To TCP/IP
5.2 Interface Instructions for installation
LED Status Description
Power
Power Indicator: Power on the module will always on.
Link
On stands for TCP connection;otherwise, it is off.
Data
When transmitting data by Ethernet port, the LED will be on, otherwise, it is off.
Interface Instructions for installation
RESET
Reset button. Recovery the parameters to factory default value.
RS232
RS232 port
ETH
RJ45,Ethernet port.
RS485
A
RS485 data A
B
RS485 data B
GND
RS485 data ground if required.
TTL
TXD
Transmit data port
RXD
Receive data port
GND
Data ground if required
9~36 VDC
-
DC9~36V negative input.
+
DC9~36V positive input, 1A, for power the device.
Power jack,for power the device.
Can only need to choose one way to power the device

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Serial Device Server D224
RS232/485/TTL To TCP/IP
6. Programming and Operation
The D224 Serial Device Server can be configured by host software,through the direct cable or crossover cable
connect to the local area network, can also through the crossover cable connect to PC.
Below are the steps to setup the parameters by PC Configuration, please follow it step by step.
Start to Configure:
Step1: Connect
The Configurator in the CD or download from www.iot-solution.com, then installs it on the computer.
Step2: Connect External DC Power
Connect the external DC Power 9~36V to DC in 9~36V Ports.
Step3: Run the Configuration software (Compatible with Windows XP/Vista/7/8/10)
Tips: In some computer, it required download net framework 4.0 while installation, then please click “Yes”to go to
Microsoft website to download this service pack.
Click “Search Device”,all devices in the LAN will appear on the left side.

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Serial Device Server D224
RS232/485/TTL To TCP/IP
Search Device
Button
Instruction
Default
IP
Device IP address in the LAN
--
Model
Device model
--
Name
Device name,can customize after connecting successfully
MY_D224
Version
Device firmware version
--
Dual-click device list,will appear below:
Enter password (default 1234),click “Confirm”prompts success,then will read device configuration parameter
automatically.

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Serial Device Server D224
RS232/485/TTL To TCP/IP
Basic Settings
Basic Function
Button
Description
Default
Restore to factory settings(need click save after default）
Change PWD
Modify device password
Read
Read all current configuration parameters of the device
Save
Save all configuration parameters to the device
Restart
Restart the device after saving
The step of modifying configuration parameter:
1) Modify configuration parameter;
2) Click “Save ”until prompt “save success”,then click “Confirm”

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Serial Device Server D224
RS232/485/TTL To TCP/IP
3) Click “Restart”or power off ,the device,then restart the device,then modify successfully.
Ethernet Settings
Network Setting
Button
Description
Default
IP Model
The mode to get IP:
●Dynamic address：get IP automatically from DHCP server
●Static address：Manually configure a static IP
Dynamic address
IP Address
Set IP address
--
Port
The port when act as a TCP/UDP server,range 0-65536
502
Subnet Mask
The device subnet mask
--
Gateway
The device gateway address
--
DNS Server
The device DNS server address
--
Serial Port Settings

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Serial Device Server D224
RS232/485/TTL To TCP/IP
Serial Port Setting
Button
Description
Default
Channel
Select and view the currently used serial channel,includes:TTL,RS232,RS485
RS485
Baud Rate
4800/9600/14400/5600/57600/19200/38400/115200/128000 optional
115200
Data Bits
5Bit/6Bit/7Bit/8 Bit optional
8 Bit
Parity Bits
NONE,EVEN,ODD optional
NONE
Stop Bits
1Bit,1.5 Bit,2Bit optional
1Bit
Click “Serial Strategy”as below,it is for configuring data transmission path,default supports 3 paths.

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Serial Device Server D224
RS232/485/TTL To TCP/IP
Serial port strategy setting
Button
Description
Default
Interface 1
TTL,RS232,RS485 optional
--
Interface 2
Server 1,Server 2,Server 3,Server 4,Server 5,Client,TTL,RS232,RS485 optional
--
Add
Add data path
--
Delete
Delete data path
--
Save
Save configuration parameter
--
Server Settings
This part is for connecting the device to internet platform.D224 supports 5 different target servers at the
same time,every server supports rich automatic handshake login message, self defined heartbeat message,
data transparent transmission, and Modbus RTU to Modbus TCP,device can be quickly compatible with
multiple third-party cloud platform systems.
Server Settings
Button
Description
Default
Server(1-5)
Supports 5 different target servers at the same time
Server 1
IP/Domain
Target server IP/domain address
Default is King Pigeon 3.0 cloud platform domain
Modbusrtu.kprtu.com
Pore
Target server port
4000
TCP/UDP Model
TCP,UPD optional
TCP
Transfer Protocol
Transparent,Modbus RTU ⇄Modbus TCP optional
Transparent
Register Message
Registration data sent to the target server
Empty

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Serial Device Server D224
RS232/485/TTL To TCP/IP
Register ACK Message
The response data returned by the target server after
receiving the registration message
Empty
Offline Message
After the target server sends the content to the device,
the device will go offline.
Empty
Heartbeat Message
Heartbeat data sent to the target server
Empty
Heartbeat ACK Message
The response data returned by the target server after
receiving the heartbeat data
Empty
Heartbeat Interval
The interval time of sending heartbeat data,range
1-999(second)
10
Client Settings
Supports up to 5 TCP/UDP Clients and 5 TCP/UDP Servers connections simultaneously.
Client Settings
Button
Description
Default
TCP/UDP Model
TCP,UPD,TCP/UPD optional
TCP
Transfer Protocol
Transparent,Modbus RTU ⇄Modbus TCP optional
Transparent
7.Reset
There have 2 ways to reset:
1) By configuration software:
Click “Default”---”Save”---”Restart”.The device will be reset successfully.
2) By Reset button:
When device is on,long press the RESET button for more than 3 seconds until the 3 LEDs are fully illuminated and

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Serial Device Server D224
RS232/485/TTL To TCP/IP
then released,the device will be reset successfully.
8.Application
8.1 Extend the serial device communication distance
Connect 2 serial devices with 2 D224 ,can realize data communication.
(2 D224 must be connected by crossover cable)
One D224 works as TCP Server,another D224 works as TCP Client.
D224 as server the IP needs to be set to static,and the IP address should be in the same network segment with
another D224,as below:
Reset
button

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Serial Device Server D224
RS232/485/TTL To TCP/IP
Serial strategy add a path”RS232-Client”
Client parameter settings are as follows:

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Serial Device Server D224
RS232/485/TTL To TCP/IP
Serial strategy add a path”RS232-Server 1”(Default added)
8.2 Multi-device connect to cloud platform
D224 supports RS232, RS485 and TTL type devices to connect the cloud platform at the same time.
The following figure shows the D224 connecting two serial devices to the cloud platform at the same time:

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Serial Device Server D224
RS232/485/TTL To TCP/IP
The RS232/RS485 serial setting parameters need the same with RS232/RS485 device,serial strategy adds a data
path of "RS232-Server 1" and "RS485-Server 1" (Default added); In the server 1 settings enter the corresponding
information for the IP/domain name and port (Default KingPigeon KPIIOT cloud platform).Setting as follows:
8.3 Connect multiple servers Simultaneously
As a TCP client, D224 can connect 5 servers at the same time.If the serial device (RTU device) used as master and
server 1-5 (Modbus TCP device) as the slave,at the same time, there are multiple network port slave devices (up to
5). then the serial device can easily initiate Modbus commands to 5 servers. The server 1-5 judges whether or not
to answer based on its own slave ID.

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Serial Device Server D224
RS232/485/TTL To TCP/IP
8.4 Local configuration and connect to the cloud platform
The D224 used as server and supports client functions,For RS232 devices (Modbus slaves), local configuration can
be implemented, allowing the computer in the LAN (Modbus master) to initiate commands and simultaneously
receive commands from the cloud platform (Modbus master).

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Serial Device Server D224
RS232/485/TTL To TCP/IP
9.Upgrade Firmware
The Modem supports upgrade firmware via USB port directly. If we upgraded the firmware functions of the
data loggers, we will inform you to upgrade the firmware if you required. If there any new requirements of
the present functions caused it should update the firmware, the user can upgrade them directly by USB port.
If you required upgrade, please contact us to modify the firmware according to you requirements, and we
will provide the upgraded firmware to you to upgrade them.
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.
The End!
Any questions please help to contact us feel free.
Http://www.IOT-Solution.com