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Sollae Systems 

https://www.ezTCP.com 

 

 

RS422/RS485 Modbus Gateway 

SMG-5420 User Manual

 

Version 1.1 

Summary of Contents for SMG-5420

Page 1: ...Sollae Systems https www ezTCP com RS422 RS485 Modbus Gateway SMG 5420 User Manual Version 1 1 ...

Page 2: ...ical and electronic equipment By ensuring this product is disposed of correctly you will help prevent potential negative consequences to the environment and human health which could otherwise be caused by inappropriate disposal of this product The recycling of materials will help to conserve natural resources For more detailed information about the recycling of this product please contact your loc...

Page 3: ...ation 12 3 1 Installing the Setting Tool 12 3 2 Connecting a Product 12 3 3 Searching Devices 12 3 4 Logging in 12 4 Settings 13 4 1 IP Address 13 4 1 1 Obtain an IP address automatically 13 4 1 2 Use a Static IP address 14 4 2 Modbus Gateway 15 4 2 1 Transmission Mode 15 4 2 2 Baudrate unit bps 15 4 2 3 Serial 16 4 2 4 TCP 16 4 2 5 Advanced 17 4 3 Advanced settings 19 4 3 1 Password 19 5 Manageme...

Page 4: ...pport 23 6 2 Warranty 23 6 2 1 Refund 23 6 2 2 Free Repair Services 23 6 2 3 Charged Repair Services 23 7 Precaution and Exemption from Liability 24 7 1 Precaution 24 7 2 Exemption from Liability 25 7 2 1 English version 25 7 2 2 French version 26 8 Revision History 28 ...

Page 5: ...sed when the timer related requirements of the RTU mode cannot be met Coding System 8 bit binary Hexadecimal ASCII characters Bits per Byte 1 start bit 8 data bits LSB sent first 1 parity bit or no parity bit 1 stop bit or 2 bits with no parity 1 start bit 7 data bits LSB sent first 1 parity bit or no parity bit 1 stop bit or 2 bits with no parity Message Framing Use time intervals char interval 1...

Page 6: ...P cannot directly communicate with devices that use serial line Modbus protocols Because not only the physical interfaces are different but also the protocols are not compatible If you want to implement the communication you need a device that convert and route data of both sides We call that kind of device Modbus Gateway ...

Page 7: ...bus master or slave of serial line and Modbus slave or master of network SMG 5420 provides 10 100Mbps Ethernet and RS422 RS485 serial port 2 2 Features RS422 RS485 Modbus Gateway 10Base T 100Base TX Ethernet RS422 RS485 serial port Self developed TCP IP stack 2 3 Components SMG 5420 s main body DC 5V power adapter optional 1 5M LAN cable optional USB cable Type A plug to Micro Type B plug optional...

Page 8: ...DC 5V 0 5V Current Consumption typically 145 Dimension 94 x 57 x 23 Weight Approximately 67g Interface Serial 1 x RS422 RS485 baud rate 1 200bps 230 400bps Network 10Base T 100Base TX Ethernet Temperature Operating Storage 40 85 Approval KC CE FCC RoHS RoHS Compliant Table 2 1 Specification ...

Page 9: ...SMG 5420 User Manual Ver 1 1 8 https www ezTCP com 2 5 Interface Figure 2 1 interface 2 5 1 Power SMG 5420 requires DC5V power supply whose specification is as follows Figure 2 2 Power ...

Page 10: ...et 2 5 3 Serial Port Port Specification Parameter Value Number 1 Type RS422 RS485 Baud rate 1 200 230 400 bps Parity NONE EVEN ODD MARK or SPACE Data bit 8 or 7 7 data bit is only available on using Parity Stop bit 1 or 2 Table 2 2 serial port parameters SMG 5420 has a 3 5mm pitch 6 pole terminal block for connecting serial devices Figure 2 4 Serial Port ...

Page 11: ...round Ground Required Table 2 3 RS485 Signal Lines RS422 Signal Lines Label Name Description Level I O Wiring TR TX Transmit Data RS422 Out Required TR TX Transmit Data RS422 Out Required R RX Receive Data RS422 In Required R RX Receive Data RS422 In Required G GND Ground Ground Required Table 2 4 RS422 Signal Lines Each signal line for RS422 RS485 has a 3 9KΩ built in biasing resistor ...

Page 12: ...onnected and an IP address is NOT assigned LINK When a network is connected and an IP address is assigned LINK When a TCP connection is NOT established MTX MRX When sending valid Modbus data to the TCP MTX When receiving valid Modbus data from the TCP MRX When sending valid Modbus data to the serial port STX When receiving valid Modbus data from the serial port SRX 2 5 5 Function Button This butto...

Page 13: ... using a LAN cable note that your PC and the product should be on the same local area network 3 3 Searching Devices Run spFinder on your PC and press the search button Once you select one of products searched and click it with right button of your mouse two menus will be popped up Setup Setting the product Status Monitoring status of the product 3 4 Logging in Before accessing to the searched prod...

Page 14: ...in an IP address automatically This product can automatically obtain an IP address by DHCP A DHCP server is required to use this Figure 4 1 Obtain an IP address automatically Select the Obtain an IP address automatically Check the Obtain DNS server address automatically and click the Write ...

Page 15: ...2 Use a Static IP address You can set a static IP address to this product Figure 4 2 Use a static IP address Select the Use static IP address Set the Local IP address Subnet mask Gateway IP address and DNS IP address Click the Write button to finish settings ...

Page 16: ...ission Mode This setting selects a transmission mode of serial line Modbus data You can select Modbus RTU mode or Modbus ASCII mode and the default is Modbus RTU 4 2 2 Baudrate unit bps This setting selects a baud rate of serial port You can select one from the list or type a baud rate The default is 9 600bps ...

Page 17: ...erver and TCP Client are available and the default is TCP Server Peer Address This setting defines an IP address of TCP server to be connected This setting is valid only if the Communication Mode is set to TCP Client Port This setting defines a port number for TCP connection The default is 502 TCP Timeout Unit sec This setting defines expiration time for TCP connection in idle state The idle state...

Page 18: ...1 17 https www ezTCP com 4 2 5 Advanced Query Flow This setting defines a direction of Modbus query You can select TCP to Serial or Serial to TCP and the default is TCP to Serial Figure 4 4 TCP to Serial Figure 4 5 Serial to TCP ...

Page 19: ... ID of Modbus TCP The ID can be set from 0 to 247 and the default is 0 Response Timeout Unit ms This setting defines expiration time for a Modbus query The default is 500 Send Gateway Exception This setting defines to send gateway s exception data or not When this value is Enable gateway sends exception data The default is Enable ...

Page 20: ... Advanced settings Figure 4 6 Advanced settings 4 3 1 Password Both ID and password are required to access to this product Note that changing the default password to another is highly recommended for security The password should be longer than 8 characters ...

Page 21: ... some major information of your product Figure 5 1 Product Information Window Product Information List Item Description Product name Product name Uptime Elapsed time since it boots up day hour min sec IPv4 Assigned IPv4 address Subnet Assigned subnet mask Gateway Assigned gateway IP address DNS Assigned DNS IP address Table 5 1 product information list ...

Page 22: ...t will be shown CONNECTING Connecting DISCONNECTING Disconnecting Table 5 2 TCP STATE MODBUS STATISTICS Item Description QUERY Statistics of master s query frame RESPONSE Statistics of slave s response frame net_rx The quantity of received frame from the network net_tx The quantity of sent frame to the network sio_rx The quantity of received frame from the serial sio_tx The quantity of sent frame ...

Page 23: ...ause of errors Table 5 4 DEVICE STATISTICS 5 2 Factory Reset Performing the Factory Reset you can restore all the settings to the default including the password Follow the procedure below with checking the status of RUN LED 1 Press and immediately release the function button 2 Press the function button and keep the state more than 5 seconds 3 Once the RUN led is turned off release the button withi...

Page 24: ...e customer s request to refund the product within two weeks after purchase Sollae Systems will refund the product 6 2 2 Free Repair Services For product failures occurring within 2 years after purchase Sollae Systems provides free repair services or exchange the product However if the product failure is due to user s fault repair service fees will be charged or the product will be replaced at user...

Page 25: ...d applications provided by Sollae Systems for purposes other than those for which they were designed is prohibited Do not use the product in an extremely cold or hot place or in a place where vibration is severe Do not use the product in an environment in which humidity is high or a lot of oil exists Do not use the product where there is caustic or combustible gas Sollae Systems does not guarantee...

Page 26: ...cars planes trucks boats aircraft helicopters etc In the same way the SMG 5420 is not designed or intended or authorized to test develop or be built into applications where failure could create a dangerous situation that may result in financial losses damage to property personal injury or the death of people or animals If you use the SMG 5420 voluntarily or involuntarily for such unauthorized appl...

Page 27: ...voir utiliser le boîtier SMG 5420 même si Sollae Systems Co Ltd ou un de ses distributeurs a été informé de la possibilité de tels dommages Le boîtier SMG 5420 est exclusivement prévu pour un usage en intérieur dans un environnement sec et non poussiéreux Le boîtier SMG 5420 n est pas prévu ni autorisé pour être utilisé en extérieur ni de façon embarquée dans des engins mobiles de quelque nature q...

Page 28: ...ems Co Ltd et de ses distributeurs ne puissent être mise en cause ni que le boîtier SMG 5420 puisse être échangé au titre de la garantie Rappel sur l évacuation des équipements électroniques usagés Le symbole de la poubelle barré présent sur le boîtier SMG 5420 indique que vous ne pouvez pas vous débarrasser de ce dernier de la même façon que vos déchets courants Au contraire vous êtes responsable...

Page 29: ...SMG 5420 User Manual Ver 1 1 28 https www ezTCP com 8 Revision History Date Version Description Author 2019 06 20 1 0 1 Initial release Roy Lee 2019 07 08 1 0 1 Correct some errors Roy Lee ...

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