4-way network IO controller

4-way network IO controller

Model: USR-IO424T-EWR

  • Support USR Cloud function and can realize remote control directly after powering on
  • Be adaptive to Modbus TCP/RTU protocol
  • Support Master mode and Slave mode for user to choose

4-way network IO controller

General Details

1. Product overview

USR-IO424T-EWR is network IO product which supports 4-way input/output, 2-way analog quantity detection, 1-way temperature detection and Modbus RTU/TCP protocol. Take ‘Remote control’ as core function and have high usability. User can easily and quickly integrate USR-IO424T-EWR into own system to realize remote control which based on Ethernet and local control which based on LAN(WiFi) and RS485 .

2. Product features

Support 4-way Relay output.

Support 4-way input, default is dry contact.

Support 2-way analog input, default are voltage detection.

Support 1-way PT100 temperature input.

Support 8 conditional control command.

Support Web Server to configure IO424T-EWR.

Support various function code: 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x0F, 0x10.

Support socket to connect to remote server and TCP Client.

Support two work modes: Master mode and Slave mode. Master mode supports connecting to multiple Modbus RTU devices by RS485 cascading connection.

Adopt Modbus RTU protocol data processing. Support Modbus TCP/RTU protocol adaptation.

Support WAN/LAN interface.

Support connecting to USR Cloud.

Support FTP remote upgrade.

Support upgrading by RS485.

Support hardware watchdog.

Support various LED to indicate work status.

Support power supply over-current, over-voltage, anti-reverse connection protection.








Parameter  Value
Ethernet interface  
Wired WAN/LAN interface 10/100M WAN/LAN interface
WiFi parameters  
Standard Support 802.11b/g/n
Antenna 2.4G WiFi antenna
Range 100 meters in open area
Hardware parameters  
Data interface

Serial port: Support RS485.

Baud rate: 300bps~230400bps

Working voltage 12V~36V
DI input Dry contact input, just needing to short-circuit DI and COM
DO output

AC 220V 10A

DC 28V 10A

Voltage acquisition Range: 0V ~ 10V
Current acquisition Range: 0mA ~ 20mA 
Temperature detection Range: -100℃ ~ 200 ℃
Working temperature -20℃ ~ +70℃
Storage temperature -40℃ ~ +85℃
Working humidity 5%~95%
Storage humidity 1%~95%
Dimension 123*114*28mm
Software parameters  
Work mode Master mode, slave mode
Configuration command Modbus RTU
Network protocol Modbus TCP, Modbus RTU
Application software Support configuration software

Software function 

DNS Support
Data transmission mode

Support TCP Client

EMC level  
ESD IEC61000-4-2, Level 4
Surge IEC61000-4-5, Level 3
Group pulse  IEC61000-4-4, Level 3

How to Buy

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