Digital 2x In, 2x Out (Task Automation via Node-RED)


The is the central box for implementing your automation tasks. With Node-RED as the programming environment you have everything you need for acquiring, processing and sending data. The various models let you connect digital IOs, serial terminal devices and USB devices.

Realize automation tasks with the pre-installed graphical development tool Node-RED. Determine the data flow between input, output and processing nodes by dragging connections in the browser-based editor. The digital in- and output signals on the are available for processing in Node-RED and make it simple to link sensors and actuators. Pre-installed nodes let you read and control Web-IOs, Web Thermometers and Com-Servers from Wiesemann & Theis. The wide range of available pre-installed nodes enables both expansion of the processing functions and linking devices from other manufacturers. The processes the flows reliably and using little power. Integration of non-public nodes is also possible on request.

Manufacturer: Wiesemann & Theis / Country of Origin: Germany


  • 1 x network
  • 2 x switching inputs:
    • digital 24V inputs
    • 32-bit pulse counter
  • 2 x switching outputs:
    • digital 24V outputs
    • current driving up to 500 mA


  • Configuration
    • Startup using WuTility (three clicks and you’re done)
    • Web-based management
  • Application
    • Create automation flows using Node-RED
    • Display on Node-RED dashboard
    • Data storage via file system, MariaDB and SQLite

Power supply:

  • External power
    • Screw terminal
  • Power over Ethernet (PoE)
    • Phantom power using data pairs
    • Power over unused wire pairs
  • Buffer capacitors
    • controlled shutdown when disconnecting from the power supply

Standards & more

  • Conforms to standards both in office and industrial environments:
    • High noise resistance for industrial environments
    • Low noise emission for residential and business areas
  • 5 year guarantee

Connections and displays:

  • Network:
    • 1 x 100/1000BaseT Autosensing/Auto-MDIX, RJ45
  • Digital outputs:
    • 2 x Digital Out 6V-30V, 500mA
    • Max. total current 1A
    • Short-circuit-protected
  • Digital inputs:
    • 2 x Digital In,
    • max. input voltage +/-30V
    • protected against reverse connection within this range
    • Switching threshold 8V +/- 1.5V
    • “On” current = 2.2 mA
    • integrated 32-bit counter
  • Supply voltage:
    • Power over Ethernet (PoE) or
    • 24 … 48V DC (+/-10%) per screw terminal
  • Supply connection:
    • Plug-in screw terminal
  • Current consumption:
    • PoE Class 2 (3.84 … 6.49W) and
    • typ. 140mA @ 24V DC with external supply
  • Indicators:
    • LEDs for System, Error, Network Status and IO states

Hard and software

  • Processor and memory:
    • Marvell 88F6820
    • Flash: 4GB (eMMC)
    • RAM: 1 GB (DDR3)
  • Installed software:
    • Node-RED: v1.0.4
    • MariaDB: v10.2.29
    • SQLite: v3.29.0

Housing and other data:

  • Enclosure:
    • Plastic housing with integrated DIN rail mount
    • 105 x 22 x 75mm (L x W x H)
  • Weight:
    • approx. 120g
  • Storage temperature:
    • -40 … +70°C
  • Operating temperature:
    • 0 … 60°C
  • Permissible relative humidity:
    • 0 … 95% relative humidity, non-condensing
  • Scope of delivery:
    • Digital 2xIn, 2xOut
    • Quick start manual
Weight 0.2 kg