NT2320 Ethernet Analog Output Modules from Acromag

NT2320 Ethernet Analog Output Modules
The BusWorks® NT2000 series offers a cost-effective, modular solution for Ethernet remote I/O systems. Two module types are available. NTE Ethernet models provide the protocol interface plus I/O signal processing channels. NTX expansion modules add extra I/O channels when mated to any NTE Ethernet communication module.

NT2320 modules offer 8 voltage outputs. Each output is driven by a 16-bit DAC. NTE Ethernet models provide a compact network interface to control voltage signal levels. Appending NTX expansion models can interface up to 32 voltage outputs at a single IP address.

Applications include controlling analog actuator levels and driving recorders, displays, or other process instruments. Voltage outputs can control generator power, drive speed, or valve positioning.

An isolated RS-485 bus links up to three expansion modules to the Ethernet module with connectors that join along the DIN rail. This internal NT bus distributes power and communication between the modules. Users can mix analog, temperature, and discrete I/O modules across the NT bus.

Acromag’s i2o® messaging technology allows direct peer-to-peer or multicast communication between remote modules without a master controller.

NT2320 Ethernet Analog Output Module Features:

  • ​8 process voltage outputs
  • Ethernet I/O plus Expansion I/O
  • Multi-protocol support

NT2320 Ethernet Analog Output Module Benefits:

  • Configured over Ethernet with web browser
  • Expandable I/O capacity, up to 56 I/O channels of mixed signal types at one IP address
  • Field-selectable Modbus TCP/IP, EtherNet/IP, or *Profinet communication
  • i2o peer-to-peer or multicast communication
  • Dual RJ45 ports enable daisy chain topology
  • Eight voltage outputs with 16-bit D/A resolution
  • Selectable 0-20mA or 4-20mA output range
  • LED status indicators for visual troubleshooting
  • *OPC-UA, *MQTT and *RESTful API IIoT support (*coming soon)
  • Conditional logic for rule-based I/O operation
  • Advanced *alarm and *data logging functions
  • 1500V isolation between I/O, network, and power
  • Thin 25mm housing with pluggable terminals
  • Wide temperature operation (-40 to 70°C)
  • CE compliant. Hazardous approvals pending


  • Ethernet Interface (NTE models only)
    • Communication:
      • Configurable for Modbus TCP/IP and EtherNet/IP.
      • Profinet support coming soon.
      • 10/100Mbps data rate, auto-sensing.
    • IP Address
      • Default Configurable static IP or DHCP.
  • Analog Outputs
    • D/A Converter
      • Eight DC voltage outputs driven by individual D/A converters. Outputs share a return.
    • Output Voltage Ranges
      • Select ±10V, ±5V, 0-10V, or 0-5V.
    • Output Accuracy
      • Factory calibrated to better than ±0.1% of span. Manual calibration of voltage outputs can improve accuracy to better than ±0.05%.
    • Output Temperature Drift
      • Better than ±50ppm/°C (±0.0050%/°C).
    • Output Excitation
      • Required for output operation 0.8W max.
    • Output Update Rate
      • Outputs update when written and are continuously refreshed every 5 seconds.
  • General I/O
    • Input Update/Conversion Rate
      • Fresh data available to the network every 10ms. Dependent on number of samples with averaging.
    • Response Time from an Ethernet command
      • Less than 5ms, typical.
  • Environmental and Physical
    • Temperature and Humidity
      • Operating: -40 to +70°C (-40 to +158°F).
      • Storage: -40 to +85°C (-40 to +185°F).
      • Relative Humidity: 5 to 95%, non-condensing.
    • Isolation
      • 1500V AC for 60 seconds and 250V AC or 354V DC continuous between I/O channels (group), each network port and power circuits.
    • Power Supply
      • 10-32V DC SELV power wired to NTE model only.
      • Power to NTX models is via NT bus connection.
      • Excitation Voltage: +12V DC to +24V DC
    • Power Consumption
      • NTE2321: 1.23 W typical, 1.35 maximum.
      • NTX2321: 1.44 W typical, 1.54 W maximum.
    • Dimensions (width x height x depth)
      • NTE: 25 x 116.9 x 139.2 mm (0.98 x 4.6 x 5.48 inches).
      • NTX: 25 x 116.9 x 116.65 mm (0.98 x 4.6 x 4.59 inches).
    • Weight
      • NTE: 0.5 lbs (0.23 kg).
      • NTX: 0.3 lbs (0.14 kg).
  • Standards and Certifications
    • Electromagnetic Compatibility (EMC)
      • CE marked, per EMC Directive 2004/108/EC.
    • Safety Approvals
      • Hazardous approvals pending.

Download Acromag NT2320 Analog Output Modules Datasheet

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