Novus DigiRail 2A Dual Universal Analog Input Modbus Module

In stock (9 items available)
  • Weight
    0.15 kg
  • SKU

The Novus DigiRail 2A accepts thermocouples, Pt100 sensors, millivolts up to 50 mV, voltage up to 10 V or current up to 20 mA with programmable linearisation and engineering units. Fully isolated. Outputs Modbus RTU over RS-485.

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  • $140.09

The Novus DigiRail series of Modbus RTU IO modules are rugged, isolated DIN rail mount units for SCADA or PLC systems. The DigiRail-2A features 2 universal analog inputs that accept a wide variety of temperature sensors and analog signals.

Note: The use of voltage scale inputs require moving jumpers inside the unit

The DigiRail units are configured over Modbus using a simple Windows utility (included on CD in the box and available from the Novus website). You will need a serial or USB to RS-485 converter to communicate with the unit from a PC.


  • 2 Analog inputs programmable for thermocouples (J, K, T, E, N, R, S, B), Pt100, mV, V, mA
  • Cold junction compensation for thermocouples and compensation for Pt100 3-wire cables
  • Open loop detection for thermocouples, Pt100 and mV
  • User defined linearisation for the analog inputs
  • LED indicators for communication and status
  • Windows based configurator software.

Power supply: 10 to 35 VDC 

Maximum current input: 50 mA

Accuracy (at 25°C): Pt100, mV, V and mA: ±0.15% of full scale. Thermocouples: ±0.25% of full scale

Electrical isolation between inputs and supply/serial ports: 1000Vac

Sampling rate: From 2.5 to 10 samples per second

Analog input resolution bit: 17 

  • Pt100
  • Voltage and current: ±0.15% of full scale
  • Thermocouples: ±0.25% of full scale.

Serial communication: RS485 at two wires and Modbus RTU protocol 

  • Configurable parameters:
    • Communication speed: From 1200 to 115200 bps
    • Parity: Even, odd or none

Envelope of the terminals: Polyamide

Temperature effect: 0.003% full scale /°C.

Operating temperature: 0 to 70 °C

Operational relative humidity: 0 to 90 %RH

Assembly: DIN 35 mm rail

Certification: CE

Dimension: 78 x 72 x 19 mm

Faulty Goods and Warranty

Where such goods have been supplied we undertake to repair or replace them as quickly as possible.Prior to returning faulty items, please contact us with a description of the fault as one of our engineers might be able to assist you by resolving the issue over the phone.
A Warranty form must be filled out and returned with any goods.

Our standard warranty period is 12 months from the date of purchase unless stated otherwise.

Other warranty periods:

Labjack Products: 5 Years
Atop Products: 3 Years
MeanWell Products: 3 Years
Terracom Products: 3 Years

Warranty is subject to us being satisfied that a defect was caused by defective workmanship or materials and was not caused by or was not substantially contributed to by other factors beyond our control including incorrect installation, alterations or modifications of the product not recommended by the manufacturer.

Returns Policy

If you are dissatisfied with our goods you may return them within 14 days of the dispatch date. Contact us for an authorisation and we will refund your purchase less shipping costs and restocking fees. All returned goods MUST be in AS NEW condition including ALL PACKAGING and DOCUMENTATION / MANUALS etc.

Please note:

  • The product returned will attract a 20% restocking fee.
  • The customer must pay the delivery costs.
  • Non standard, custom made or a specially manufactured or imported products are not returnable.
  • Semiconductors, books and software are not refundable

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