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KSH International WPC-832-2-Modbus-MQTT, User Manual, Page: 3 / 16

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3 

 

Introduction   

 

WPC-832-2-Modbus-MQTT  RTU/ASCII  to  TCP  Gateway  provides  the  easy  way  of 

connecting  Modbus  Serial  and  TCP  devices  to  MQTT  Broker  via  Wireless  and  Ethernet 

LAN  in  Modbus  TCP  and  RTU/ASCII  networks.    The  wireless  supports  802.11  b/g/n  in 

AP/Station  mode  with  WEP/WPA/WPA2  encryption  for  data  transmission  security.    The 

Ethernet  support  10/100  Mbps  auto-detecting  communication  speeds.    This  Gateway  is 

designed to operate 2 Serial ports (RS-232 and RS-422/485) over wireless and Ethernet 

network.    This device

 is a high performance design composed with carefully selecting 

qualified  components  from  reliable  and  certified  sources.    This  user’s  manual  will 

guide you to configure functions step by step. 

 

The following topics are covered in this chapter: 

 

 

Overview

 

 

Package Checklist 

 

 

Product Features 

 

 

Hardware Specifications 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Summary of Contents for WPC-832-2-Modbus-MQTT

Page 1: ... WPC 832 2 Modbus MQTT User Manual 2 Ports Modbus TCP to Modbus RTU ASCII Wi Fi Ethernet connection MQTT Gateway v 201901a http www tcpipweb com this user manual is subject to change without prior notice ...

Page 2: ...2 ...

Page 3: ...ssion security The Ethernet support 10 100 Mbps auto detecting communication speeds This Gateway is designed to operate 2 Serial ports RS 232 and RS 422 485 over wireless and Ethernet network This device is a high performance design composed with carefully selecting qualified components from reliable and certified sources This user s manual will guide you to configure functions step by step The fo...

Page 4: ...TT embedded with MT7688AN MIPS chipset makes it become the ideal device for transmitting data from your RS 232 or RS 422 485 Serial interface devices or remote TCP making it possible for your software to access data or control the I O via MQTT Broker Package Check List WPC 832 2 Modbus 2 Port Modbus RTU ASCII To Modbus TCP Gateway product attached with the following items 1 unit of Serial to WPC 8...

Page 5: ...rt RS 232 connection would require cross link cable or adaptor 1 1 Ethernet About 15 seconds after Transmitter power on PC NB can run IP search tool to find IP 1 2 WiFi About 25 seconds after power on Transmitter start service as an AP default SSID 2 WIFI connection 2 1 On bottom of Transmitter a label printed SSID login password and MAC_ID On the Window open Wi Fi SSID table Click to connect with...

Page 6: ... and setup 3 1 Upon running IP search tool CvIotFinder if a firewall warning pop up please click to accept the program pass through firewall 3 2Running CvIotFinder Click Find button to search WPC 832 on the network ...

Page 7: ...ransmitter then can open configuration web page 3 5 To change Transmitter s IP subnet to be same as per PC NB clicking Setup button for modification of IP Subnet name description Username and Password input is required Click Setup again to save modification Ethernet IP WiFi IP ...

Page 8: ...8 3 6If to change PC NB s IP subnet to be same as per Transmitter modify or add new IP of PC NB 4 Web page Configuration 4 1Input Login Password admin admin 5 Network page ...

Page 9: ...of Type to select INFRASTRUCTURE 5 2Go to item SSID click Scan will get list of available SSID of AP select the right one to link 5 3Input password for the AP and assign STATIC and input a fixed IP address Click Save when change to other pages or Save and Reboot ...

Page 10: ...m in data transmission with Transmitter 5 5Ethernet configuration Go to Ethernet section click arrow of Mode to select STATIC needs a fixed IP input The Gateway IP must be set with correct IP enable to connect with Internet 6 Serial page 6 1To set up serial port parameters 9600 n 8 1 Serial 1 is for Port 1 connection Serial 2 is for Port 2 connection ...

Page 11: ... Socket Port number Examle test mosqitto org is a free Broker for testing purpose only 7 2 2 If needed may input User Name and Password 7 3 SSL Enabled or Disabled 7 4 Clean session Enabled or Disabled 7 4 1 When Clean session set Disabled it will build a permanent dialog with MQTT Broker The dialog will keep working and save off line message until the dialog to be cancelled due to overtime ...

Page 12: ... MQTT Broker The dialog will be terminated when client break the connection with MQTT Broker 8 TOPIC page 8 1 Section Medias for MQTT Client to get data from remote devices 8 2 TOPIC settings 8 2 1 No 1 16 Transmitter can set 16 topics as publisher or subscriber for MQTT Broker ...

Page 13: ...ar as a folder 8 2 3 Protocol RTU ASCII TCP for selections 8 2 4 Media For data sources come from 2 Serial ports Serial 1 2 and 4 remote TCP devices Socket 1 4 8 2 5 Endial Endianness 8 2 6 Slave Input ID of Modbus Slave Different Modbus Devices on the same Media must not repeat ID 8 2 7 REG Start register address 1 9999 Read Writeable Coils modbus function code 0x01 ...

Page 14: ...egister start from 0 or 1 8 2 8 Format Numeric format selections 8 2 9 Count Length of register to read out in JSON format 8 2 10 INT sec Interval time for data reading and broadcasting 8 2 11 Sub is to be Subscriber The parameters should be same as per Publisher Publisher should set UID folder as same as this Transmitter 8 2 12 Please click Save before change page or click Save and Restart to reb...

Page 15: ...on 10 Data acquisition device style settings A style Protocol select RTU Media Serial 1 or Serial 2 B style Protocol select TCP Media Socket 1 4 C style Protocol select RTU Media Socket 1 4 11 MQTT Topic List Topics Payload Format Note GUID Register RegName JSON Format of RegName existing value ...

Page 16: ...eption RegName STRING Exception happened upon reading RegName STRING states the exception 12 Reset if needed Ensure power is on press WiFi Reset button for over 25 seconds then release Transmitter will set configuration back to factory default Please copy settings before reset Reset Button beneath the antenna ...

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