EtherCAT Rack Chassis

EtherCAT developers can now harness the power and flexibility of the RACKtangle. It is ideally suited for a wide variety of industrial, aerospace and lab data acquisition and control applications. Perfect for high reliability application, UEI hardware has a 10 year obsolescence guarantee and a 3 year warranty. Learn more at

The CPU Module provides the Ethernet Controller (NIC), indicator lights, configuration ports and internal power supply. It’s the brains and controls the unit’s operations including the interface with the host Controller (and other hardware) as well as supervising the activity of the I/O boards. The CPU module also includes rotary switches that set the chassis’ EtherCAT explicit device identification. If the switch is set to ECAT ID 0, the unit’s address is programmed by any EtherCAT master. In addition to connecting to other UEI chassis the DNx-ECAT series can be installed in any chain with ETG conforming devices.

The remainder of the chassis is dedicated to I/O slots - 4 to 12. These slots are populated with the I/O modules selected to match your process or test application. With over 60 different I/O boards available we’re sure to have just what your application requires. We currently offer: A/D boards to measure voltage, current, strain gages, thermocouples and more, D/A boards with outputs to ±40V or ±50 mA, Digital I/O interfaces for logic and “real-world” signal levels, counters and timers, quadrature encoder inputs, RVDT/LVDT, and simulated signals such as RTDs, TCs, etc.

You can choose from 4, 6, and 12 slot styles. The DNx-ECAT series racks feature:

  • > 2 kHz scan rates
  • Configuration via EtherCAT Master - Modules and Slots
  • No external program or connection needed
  • Wide input power range: 9 to 36 VDC
  • Up to 300/384 analog inputs/outputs and 576 digital I/O channels per Rack
  • Industrial temperature range: -40 C to 85° C
  • Rugged: 5g vibration, 100g shock