Industrial Modbus Gateway, Serial to Ethernet converter modbus RTU gateway

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Industrial Modbus Gateway, Serial to Ethernet converter modbus RTU gateway
Industrial Modbus Gateway, Serial to Ethernet converter modbus RTU gateway
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Price: $47.00
Availability: In Stock
Model: USR-M511
Manufacturer: USR IOT
Average Rating: Not Rated

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Unique Features

1. Modbus gateway: Modbus RTU to Modbus TCP, Modbus poll, Modbus monitor

2. Work Mode: Modbus_RTU Slave/Master, Modbus_ASCII Slave/Master

3. Auto query Modbus RTU/ASCII Slave Device

Industrial Modbus Gateway

USR-M511 is Modbus gateways that query Modbus RTU/ASCII slave and display data in internal webpage. It also supports reply the querying from Modbus TCP Master. USR-M511 provides a flexible method to control and monitor your Modbus RTU/ASCII devices.

User Guide:

Industrial Modbus Gateway Features

  • Support RS232/RS485 or RS422
  • Ethernet accessory
  • Internal webpage to control and monitor
  • Auto query Modbus RTU/ASCII Slave device
  • Modbus RTU/ASCII to Modbus TCP
  • 10/100Mbps ethernet interface, support Auto-MDI/MDIX
  • Baud rate support 600bps~230.4K bps; Support None, Odd, Even, Mark, Space
  • Support hardware Reload.
  • Support Static IP/DHCP
  • Support hardware Reload

Serial Device Server Parameter


RJ45 Port
Number 1
Standard 4 pin RJ45
Speed rate 10/100Mbps, MDI/MDIX
Protection 2KV electromagnetic isolation
Protocal IP, TCP, UDP, DHCP, DNS, HTTP, ARP, ICMP, Websocket, HTTPD Client, Modbus 
Buffer TX: 16K byte, RX: 16K bytes
COM Port
Number RS232/RS485/RS485 * 1, choose one to use
Standard RS232: DB9 male connector, RS485: A+ B-, RS422: (A, B, Y, Z)
Baud rate 600-230.4K bps
Data bit 5, 6, 7, 8
Parity bit None, Odd, Even, Space, Mark
Stop bit 1, 2
Buffer TX: 2K byte, RT: 2K byte
Flow control RTS/CTS
RS485 resistor 2.2K Ω
Protection ESD 2KV, lighting, surge, over current
Power Input
Voltage 5-36 V
Type DC jacker and + - terminal
Working current 53mA (average) @12 V
Protection ESD, surge, reversed connect
Working Environment
Working tempreture -40 - 85 °C
Storage tempreture -40 - 105 °C
Storage humidity 5% - 95% (no condensation)
Dimensions 88*81*24 mm, without terminal
Certification None
Download files USR-M511


Modbus Gateway Application Sample

Packing List

  • Serial Device Server * 1
  • RS232 to RS485/RS422 converter *1
  • Power adapter * 1
  • Serial cable * 1
Certification Non
Size 86*81*24mm(L*W*H)
Working Temp -40~85℃
Storage Temp -45~105℃
Working Humidity 5%~95%
Storage Humidity 5%~95%
Power Supply
Working Voltage DC 5~36 V
Working Current 95mA@5V
Serial Port RS232/RS485/RS422
Network Protocol IPV4, TCP/UDP
IP Access Method Static IP, DHCP
DNS, Modbus, Customize Webpage Support


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