IOT DTU-H100 User manual

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DTU-H100 Wi-Fi/Ethernet to RS485/RS232 Server User Manual
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DTU-H100
Wi-Fi/Ethernet to RS232/RS485 Server
User Manual
V0.1
Overview of Characteristic
Embedded UART to Wi-Fi device, hardware flow
control (RTS/CTS) RS232 interface
Support IEEE802.11b/g/n Wireless standards
Support TCP/UDP/HTTP Network Protocols
Support RS232/RS485/Ethernet Data Interface
RS232 RS485 automatic switching
Support Work As STA/AP/AP+STA Mode
Support Router/Bridge Mode Networking
Support AT+ Instruction Set for Configuration
Support Friendly Web Configuration Page
Single 5~18V DC Power Supply
Size: 84 x 84 x 25mm
FCC/CE/TELEC/RoHs Certificated

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DTU-H100 Wi-Fi/Ethernet to RS485/RS232 Server User Manual
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TABLE OF CONTENTS
1. PRODUCT OVERVIEW ............................................................................................................... 8
1.1. General Specification ............................................................................................................. 8
1.2. Hardware Introduction ............................................................................................................ 9
1.2.1. Interface Description .......................................................................................................... 9
1.2.2. RS232 Interface ............................................................................................................... 10
1.2.3. RS485 Interface ............................................................................................................... 10
1.2.4. RJ45 Interface.................................................................................................................. 10
1.2.5. Button Interface................................................................................................................ 11
1.2.6. Mechanical Size............................................................................................................... 12
1.2.7. Order Information............................................................................................................. 12
1.2.8. Device Difference............................................................................................................. 13
1.2.9. Package Information ........................................................................................................ 13
2. APPLICATION ............................................................................................................................ 14
2.1. Wireless Networking ............................................................................................................. 14
2.1.1. AP Application.................................................................................................................. 14
2.1.2. STA Application ............................................................................................................... 15
2.1.3. AP+STA Applicatioin........................................................................................................ 15
2.1.4. One AP One STA Applicatioin ......................................................................................... 17
2.2. Ethernet Interface Communication ..................................................................................... 17
2.2.1. Ethernet Interface Networking (As AP, N-Ver) ................................................................ 18
2.2.2. Ethernet Interface Networking (As STA, N-Ver) .............................................................. 18
2.2.3. Ethernet Interface Networking (As STA, Z-Ver) .............................................................. 19
3. FUNCTION DESCRIPTION....................................................................................................... 20
3.1. User Configuration Process................................................................................................. 20
3.2. Working Mode ....................................................................................................................... 20
3.2.1. Transparent Transmission Mode ..................................................................................... 20
3.2.2. Agreement(Serial Command Mode) ................................................................................ 21
3.2.3. HTTPD Client Mode......................................................................................................... 22
3.3. Wi-Fi Parameter Setting........................................................................................................ 23
3.3.1. Auto- Frequency Function ............................................................................................... 23
3.3.2. Security ............................................................................................................................ 23
3.3.3. Search Function for STA ................................................................................................. 23
3.3.4. Address Binding............................................................................................................... 23
3.4. UART Frame Scheme............................................................................................................ 23
3.4.1. UART Free-Frame ........................................................................................................... 23
3.4.2. UART Auto-Frame ........................................................................................................... 24
3.5. Network Setting ..................................................................................................................... 24
3.5.1. Socket A........................................................................................................................... 24
3.5.2. Socket B........................................................................................................................... 25
3.6. TCP Password Authentication............................................................................................. 25
3.7. Upload ID................................................................................................................................ 26
3.8. Keepalive(Reserved)............................................................................................................. 26
3.9. Multiple STA Parameters...................................................................................................... 26
3.10. Websocket(Reserved) ....................................................................................................... 26
3.11. Parameters Setting............................................................................................................ 26

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DTU-H100 Wi-Fi/Ethernet to RS485/RS232 Server User Manual
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3.12. Palmodic Signal................................................................................................................. 26
3.13. Firmware Upgrade ............................................................................................................. 27
4. OPERATION GUIDELINE ......................................................................................................... 28
4.1. Configuration via Web Accessing ....................................................................................... 28
4.1.1. Open Web Management Interface................................................................................... 28
4.1.2. Quick Configure ............................................................................................................... 28
4.1.3. Mode Selection Page....................................................................................................... 29
4.1.4. AP Interface Setting Page ............................................................................................... 30
4.1.5. STA Interface Setting Page ............................................................................................. 30
4.1.6. Application Setting Page.................................................................................................. 31
4.1.7. Ethernet Setting ............................................................................................................... 32
4.1.8. HTTPD Client Mode......................................................................................................... 32
4.1.9. Device Management Page .............................................................................................. 32
4.2. The device Usage Introduction............................................................................................ 33
4.2.1. Software Debug Tools ..................................................................................................... 33
4.2.2. Network Connection......................................................................................................... 33
4.2.3. Device Debug .................................................................................................................. 34
4.3. Typical Application Examples ............................................................................................. 36
4.3.1. Wireless Control Application............................................................................................ 36
4.3.2. Remote Management Application.................................................................................... 37
4.3.3. Transparent Serial Port Application ................................................................................. 37
4.3.4. Wireless Data Acquisition Card Application..................................................................... 38
5. AT+INSTRUCTION INTRODUCTION...................................................................................... 40
5.1. Configuration Mode .............................................................................................................. 40
5.1.1. Switch to Configuration Mode .......................................................................................... 40
5.2. AT+ Instruction Set Overview .............................................................................................. 41
5.2.1. Instruction Syntax Format................................................................................................ 41
5.2.2. AT+ Instruction Set .......................................................................................................... 42
5.2.2.1. AT+E ............................................................................................................................ 43
5.2.2.2. AT+ENTM..................................................................................................................... 44
5.2.2.3. AT+NETP ..................................................................................................................... 44
5.2.2.4. AT+UART ..................................................................................................................... 44
5.2.2.5. AT+ UARTF.................................................................................................................. 45
5.2.2.6. AT+ UARTFT................................................................................................................ 45
5.2.2.7. AT+ UARTFL................................................................................................................ 45
5.2.2.8. AT+TMODE.................................................................................................................. 46
5.2.2.9. AT+WMODE................................................................................................................. 46
5.2.2.10. AT+WSKEY .............................................................................................................. 46
5.2.2.11. AT+WSSSID ............................................................................................................. 47
5.2.2.12. AT+ WSLK................................................................................................................ 47
5.2.2.13. AT+WEBU ................................................................................................................ 47
5.2.2.14. AT+WAP ................................................................................................................... 48
5.2.2.15. AT+WAKEY .............................................................................................................. 48
5.2.2.16. AT+HIDESSID .......................................................................................................... 49
5.2.2.17. AT+MSLP ................................................................................................................. 49
5.2.2.18. AT+WSCAN.............................................................................................................. 50
5.2.2.19. AT+ TCPLK .............................................................................................................. 50
5.2.2.20. AT + TCPDIS............................................................................................................ 50

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DTU-H100 Wi-Fi/Ethernet to RS485/RS232 Server User Manual
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5.2.2.21. AT+ WANN ............................................................................................................... 50
5.2.2.22. AT+ LANN ................................................................................................................ 51
5.2.2.23. AT + DHCPDEN ....................................................................................................... 51
5.2.2.24. AT+ DHCPGW.......................................................................................................... 52
5.2.2.25. AT+ TCPTO.............................................................................................................. 52
5.2.2.26. AT+ MAXSK ............................................................................................................. 52
5.2.2.27. AT+TCPB.................................................................................................................. 52
5.2.2.28. AT+TCPPTB............................................................................................................. 53
5.2.2.29. AT+TCPADDB .......................................................................................................... 53
5.2.2.30. AT+TCPTOB ............................................................................................................ 53
5.2.2.31. AT+TCPLKB ............................................................................................................. 54
5.2.2.32. AT+EPHY ................................................................................................................. 54
5.2.2.33. AT+STTC.................................................................................................................. 54
5.2.2.34. AT+DOMAIN............................................................................................................. 54
5.2.2.35. AT+FRLDEN............................................................................................................. 55
5.2.2.36. AT+RELD.................................................................................................................. 55
5.2.2.37. AT+Z ......................................................................................................................... 55
5.2.2.38. AT+MID..................................................................................................................... 55
5.2.2.39. AT+WRMID .............................................................................................................. 56
5.2.2.40. AT+VER.................................................................................................................... 56
5.2.2.41. AT+H......................................................................................................................... 56
5.2.2.42. AT+FVEW................................................................................................................. 56
5.2.2.43. AT+FVER.................................................................................................................. 57
5.2.2.44. AT+WMAC................................................................................................................ 57
5.2.2.45. AT+PING .................................................................................................................. 57
APPENDIX A: CONTACT INFORMATION ..................................................................................... 58

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DTU-H100 Wi-Fi/Ethernet to RS485/RS232 Server User Manual
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LIST OF FIGURES
Figure 1. DTU-H100 Appearance ......................................................................................................... 9
Figure 2. RS232 Pin Defination(Male/Needle Type) ......................................................................... 10
Figure 3. RJ45 Pin Defination............................................................................................................ 11
Figure 4. DTU-H100 Mechanical Dimension ...................................................................................... 12
Figure 5. DTU-HXXX Series Order Information.................................................................................. 12
Figure 6. DTU-H1XX Functional Architecture..................................................................................... 14
Figure 7. DTU AP Application............................................................................................................. 14
Figure 8. DTU STA Application........................................................................................................... 15
Figure 9. DTU AP+STA Application.................................................................................................... 16
Figure 10. One AP and One STA Application................................................................................... 17
Figure 11. Ethernet Interface Networking (As AP)............................................................................ 18
Figure 12. Ethernet Interface Networking (As STA, N-Ver) .............................................................. 18
Figure 13. Ethernet Interface Networking (As STA, Z-Ver) .............................................................. 19
Figure 14. Search Page .................................................................................................................... 23
Figure 15. Multi-TCP Link Data Transmition Structure ..................................................................... 25
Figure 16. Dual Socket Working Data Flow ...................................................................................... 25
Figure 17. Open Web Management page......................................................................................... 28
Figure 18. Quick Configure Page...................................................................................................... 29
Figure 19. Mode Selection Page....................................................................................................... 29
Figure 20. AP Interface Setting Page ............................................................................................... 30
Figure 21. STA Interface Setting Page ............................................................................................. 31
Figure 22. Application Setting Page.................................................................................................. 31
Figure 23. Ethernet Setting Page...................................................................................................... 32
Figure 24. HTTPD Client Mode Page ............................................................................................... 32
Figure 25. Device Management Page .............................................................................................. 33
Figure 26. STA Interface Debug Connection .................................................................................... 34
Figure 27. AP Interface Debug Connection ...................................................................................... 34
Figure 28. “CommTools" Serial Debug Tools ................................................................................... 34
Figure 29. “TCPUDPDbg" Tools Create Connection ........................................................................ 35
Figure 30. “TCPUDPDbg" Tools Setting ........................................................................................... 35
Figure 31. “TCPUDPDbg" Tools Connection .................................................................................... 36
Figure 32. Wireless Control Application............................................................................................ 36
Figure 33. Remote Management Application.................................................................................... 37
Figure 34. Transparent Serial Port Application ................................................................................. 38
Figure 35. Wireless Data Acquisition Card Application..................................................................... 39
Figure 36. The device Default UART Port Parameters..................................................................... 40
Figure 37. Switch to Configuration Mode .......................................................................................... 40
Figure 38. "AT+H" Instruction for Help .............................................................................................. 41
LIST OF TABLES
Table 1 DTU-H100 Technical Specifications....................................................................................... 8
Table 2 DTU-H100 External Interface ................................................................................................. 9
Table 3 RS232 Interface..................................................................................................................... 10
Table 4 RJ45 Interface ....................................................................................................................... 11
Table 7 Serial Command Mode.......................................................................................................... 21
Table 5 The device Web Access Default Setting .............................................................................. 28

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DTU-H100 Wi-Fi/Ethernet to RS485/RS232 Server User Manual
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Table 6 Error Code DescribtionThe device Web Access Default Setting ......................................... 42
Table 7 AT+ Instruction Set List ........................................................................................................ 42

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DTU-H100 Wi-Fi/Ethernet to RS485/RS232 Server User Manual
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HISTORY
Ed. V0.1 Created on 01-27-2016.

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DTU-H100 Wi-Fi/Ethernet to RS485/RS232 Server User Manual
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1. PRODUCT OVERVIEW
1.1. General Specification
Table 1 DTU-H100 Technical Specifications
Class
Item
Parameters
Ethernet Port
Port Number
1
Interface
8-Pin RJ45
PHY Rate
10/100Mbps, MDI/MDIX
Network Protocol
IP/TCP/UDP/DHCP/DNS/HTTP/ARP/
ICMP/Web socket/Http Client
Wi-Fi Port
Standard
802.11 b/g/n
Network Mode
STA/AP/STA+AP
Max Connection
32
Transmit Power
802.11b: +20 dBm (Max.)
802.11g: +18 dBm (Max.)
802.11n: +15 dBm (Max.)
Receiver Sensitivity
802.11b: -89 dBm (@11Mbps, CCK)
802.11g: -81dBm(@54Mbps, OFDM)
802.11n: -71dBm(@HT20, MCS7)
Antenna Option
External: 3dBi Antenna
Port Number
2(1 x RS232, 1x RS485)
UART Port
Interface Standard
RS232: DB9 Pin Type
RS485: 2 wire(A+, B-)
Data Bits
5,6,7,8
Stop Bit
1,2
Check Bit
None, Even, Odd, Space, Mark
Baud Rate
300 bps ~ 460800bps
Flow Control
RTS / CTS
Hardware
Parameters
Input Voltage
5~18V DC Input
Operating Current
Avg:170mA Peak:400mA
Operating Temp.
-40℃~85℃
Storage Temp.
-45℃- 125℃/ 5 ~ 95% RH
Dimensions
84 x 84 x25mm
Certificate
CE/FCC/TELEC/RoHS
Warranty
2 Years
Software
Parameters
Network Type
STA/AP/STA+AP
Security Type
WEP/WPAPSK/WPA2PSK
Encryption
WEP64/WEP128/TKIP/ AES
Network Protocol
TCP/UDP/ARP/ICMP/DHCP/DNS/HTTP
Max. TCP Connection
32
Configure Interface
Web Server / AT Command
Customization
Support Software Customization

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DTU-H100 Wi-Fi/Ethernet to RS485/RS232 Server User Manual
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1.2. Hardware Introduction
Figure 1. DTU-H100 Appearance
1.2.1. Interface Description
Table 2 DTU-H100 External Interface
Function
Name
Description
External
Interface
RJ45 Ethernet
10/100M Ethernet
RS232
RS232 Communication
RS485
RS485 Communicaton
DC5-18V
DC Power 5~18V Input
LED
Indicator
Power
3.3V Internal Power Supply Indicator
Ready
Boot Indicator
On: Device boot OK.
Off: Waiting For Device boot.
(The device need about 7 seconds to boot)
Link
Wi-FIi Connection Indication
On：STA mode Connect to AP or AP mode
other device connect to it.
Off：No Wi-Fi Conectoin
RXD
RS232/RS485 Data Receive
TXD
RS232/RS485 Data Transfer

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DTU-H100 Wi-Fi/Ethernet to RS485/RS232 Server User Manual
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Function
Name
Description
Button
Reload
Restore to Factory Setting Button
Long Press this button for 3 seconds and
loosen, the device will restore to factory
setting in 10 seconds.
1.2.2. RS232 Interface
Device serial port is male(needle), RS232 voltage level(can connect to PC directly), Pin Order is
cosistent with PC COM port. Use cross Cable connected with PC(2-3 cross, 7-8 cross, 5-5 direct,
7-8 no connection), see the following table for pin defination.
Figure 2. RS232 Pin Defination(Male/Needle Type)
Table 3 RS232 Interface
Pin Number
Name
Description
2
RXD
Receive Data
3
TXD
Send Data
5
GND
GND
7
RTS
Request to Send
8
CTS
Clear to Send
9
VCC
Defualt not used. May connect the jumper of
the DTU main board to make this pin
connected with DTU DC power supply.
1.2.3. RS485 Interface
RS485 use two wire links, A(DATA+), B(DATA-). Connect A(+) to A(+), B(-) to B(-) for
communication.
1.2.4. RJ45 Interface
DTU-H100 Ethernet port is 10M/100M adaptive, support AUTO MDI/MDIX which means it
support direct connecting to PC with Ethernet cable. Ethernet function is enabled by default and it
can also be closed for power save via web or AT command.