Nube-iO - Connecting Wired Outputs

General: Connecting Wired Outputs


Wired outputs consist of wired output signals to be sent to other devices.  They from the Digital Output (DO), Universal Output (UO), and Relay Output (R1, R2,etc.) terminals of controllers that support wired output points.


Wired Outputs are grouped in to two main categories:

1. Digital – Only 2 possible states: ON or OFF.  Digital Outputs can produce Voltage, or activate a Switch/Dry Contact.

2. Analog – Many possible states based on a range of Voltage, or Current (specific to the output type).


Digital Outputs

Digital Outputs are connected between the Ground (GND) terminal and the selected DO or UO terminal.   

There are 2 types of Digital Outputs:
  1. Voltage - Output is either 0v or a defined voltage level (eg. 12v DC).   The Voltage Signal will be produced at the DO/UO terminal.
  2. Switched / Dry Contact / Relay - Output is either Open Circuit (OFF) or Closed Circuit (ON).  There is no polarity for this type of Digital Output.

Wiring Diagram:



Analog Outputs

Analog Outputs are connected between Ground (GND) terminal and the selected AO or UO terminal.  Analog Outputs are polarity sensative, with Ground (GND) being 0v (-) and AO or UO terminal being positive Voltage or Current (+).

There are two main types of Analog Outputs:

2. 0-10vdc - Output is a DC voltage signal of the range of 0v to 10v.  Voltage is produced on the AO or UO terminal.

3. 4-20mA – Output is a Current signal in the range of 4mA to 20mA.   Because this type of output signal maintains the loop Current, the Voltage on the AO/UO may vary.  

Wiring Diagram:



Note: On many devices there are output pin configuration settings (hardware and/or software) that must be configured correctly for each different type of output.  See hardware specific instructions for these output pin configurations.



    • Related Articles

    • Edge iO 28: Connecting Wired Input and Output Points

      Edge28 Input/Output Summary Point Type Number Available Details DI 7 Dry Contact / Switch  (Open/Closed Circuit) UI 7 Analog: Resistance, Thermistor, 0-10vdc, 4-20mA   OR   Digital: Dry Contact / Switch (Open/Closed Circuit)  DO 5 Digital 0v or 12vdc ...
    • General: Connecting Wired Inputs

      Wired Inputs consist of wired sensors or wired signals from other devices.  They are wired to Analog Input (AI), Digital Input (DI), or Universal Input (UI) terminals of controllers that support wired Input points.   Wired Inputs are grouped into 2 ...
    • Edge iO 28: Power Requirements and Wiring

      Power Supply Requirements Supply Voltage 24v AC/DC Current Requirement 700 mA Minimum Transformer Size  17 VA Power Supply Wiring The Edge28 can be powered by 24 volts AC or DC.  The 0v wire from the power supply should be connected to the ...
    • Rubix iO: Modbus RS485 Wiring

      Nube-iO Rubix IO Modules are a pure Modbus device; All communications with the IO Modules are via Modbus.  This article will detail the correct wiring for the Modbus RS485 Network.  To communicate via Modbus the Rubix IO Module must also have its ...
    • Rubix Compute: Power Requirements and Wiring

      Warning:  Power requirements are different for older models of Rubix Compute. To determine the device version of Rubix Compute, see: Rubix Compute: Identifying Hardware Version If Rubix Compute hardware is Version 0.8 or below, DO NOT FOLLOW the ...