Industrial Modbus Gateway, Serial to Ethernet converter modbus RTU gateway

Communication Expert of Industrial IOT
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: $59.60
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
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