First Name
Last Name
Email Address
Phone Number

Get in Touch

(508) 921-4600


UEI United Kingdom
+44 (0) 1223 455 700

Visit this page for local offices and distributors.

4-slot 1G FlatRACK based, DC powered I/O chassis for use with OPC-UA



1U FlatRACK, rack mountable 4 slot chassis with Gigabit Ethernet and 100-240 VAC AC power

  • Powerful I/O platform is your OPC-UA server
  • 1.75" x 7.5" x 16.5" (standard 1U 19" rack) provides slots for 4 I/O boards
  • Rugged: 100g shock and 3g vibration, -40°C to +70°C
  • Flexible, compact and rugged
  • Web/HTML configuration
  • Flexible: Over 40 I/O boards available
  • Remote connections possible through VPN and Firewalls
  • 1000Base-T / Gigabit Ethernet connectivity
  • Supports the OPC-UA Historian functionality
  • 10-year availability Guarantee
4-slot 1G FlatRACK based, DC powered I/O chassis for use with OPC-UA
Software/Programming: How UEI solutions are used. Hosted - Connected to a PC with Windows, Linux, QNX, VxWorks, RTX, or similar OS. Hosted also is for OPC-UA, Modbus and EtherCAT. Standalone - Controller with Linux or VxWorks OS, Simulink I/O Target or UEILogger. Available options for this product are shown in the drop down menu.
CPU Configuration:
Solid State Hard Drive:
SD Card:
Quantity: $3425
Add to Cart

Typically in stock for 1-2 week delivery.



UEI's OPC-UA compatible I/O product family has been designated the UEIOPC-UA series. It offers an unprecedented combination of flexibility, high performance, low cost, ruggedness and small size, all fully supported by your standard OPC-UA client. Based on UEI's popular FlatRACK chassis, the UEIOPCUA 400F-DC is DC powered, allows the installation of up to 4 DNF series I/O boards and is an ideal solution for a great many I/O applications.

UEI-OPC-UA series supports the following profiles and facets:

Server Profile: Embedded UA Server profile

Transport Profile: UA-TCP, UA-SC, UA Binary

Security Profiles: SecurityPolicy - Basic256Sha256, SecurityPolicy - Basic256 and SecurityPolicy - None

Access Types: Data Access, Historical Data Access

System configuration is made easy by the UEI-OPC-UA's intuitive, easy to use web/HTML interface. A screen capture of the web interface is shown on the following page. The web interface also supports the OPC-UA Historian functionality.

There are currently over 40 different I/O boards available providing the functions listed below:

Input Boards
  • 0-20 / 4-20 mA input
  • Thermocouple input
  • RTD input
  • Strain and Wheatstone Bridge input
  • Voltage input
  • Digital I/O
  • Speed/Frequency Input
  • Quadrature Encoder Input
Output Boards
  • 0-20 / 4-20 mA output
  • Voltage Output
  • Digital Output
  • Relay Output
  • Plus many more
With this many different I/O boards available, there is sure to be a configuration perfect for your application.

UEI's OPC-UA web based I/O configuration tool makes it very easy to configure
your system and prepare it to connect to your OPCUA server.

The UEIOPCUA 400F-DC is small (1.75" x 7.5" x 16.5" (1U)) and rugged. It has been tested at 3g Vibration and 100g Shock. Its small, low profile 1U footprint and ability to survive harsh mechanical stress makes it a perfect solution in many industrial applications. No longer dependent upon Windows, our OPC chassis are standalone OPC servers.OPC-UA systems are ideal solutions in a wide variety of measurement and control applications in industries such as: Oil & Gas, Automotive, Energy Systems, Food & Beverage, Water Treatment, Chemical Processing and many more!

Related Media

Using OPC UA With UEI Products

United Electronics Industries products can easily be configured to work with OPC Unified Architecture for process control with enhanced security. In this video we briefly demonstrate the features of OPC and how to easily set it up.

UEI Technical Master Class: OPC-UA & Modbus

In this Master Class, we look at two popular Industrial Communication Protocols, Modbus, and also a newer protocol, OPC-UA. Takeaways include providing an overview of the two protocols, highlighting the benefits and limitations of each, and demonstrating UEI hardware using each of them.