Novus' DigiRail line of smart transmitters with Modbus RTU communication interface provides a simple way for integrating analogue or digital signals to supervisory systems. Featuring up to two universal input analogue signal channels they are the most economical way to deliver analogue inputs to PLC´s and SCADA systems. The input signals are isolated from power thus protecting the electrical instruments by eliminating ground loop effects. This reduces substantially undesirable interferences and instabilities in sensor measurements.
Features:
- Analogue 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
- The sampling rate for 1 analogue input: 10Hz for mV, V and mA. 5 Hz for t thermocouples and Pt100
- Analog input resolution: 17 bits
- Digital inputs: in voltage, 4 to 35 V to activate. Internally limited current in 5 mA
- Digital outputs: 8 A / 250 Vac SPDT relay, resistive load
- Power: 10 to 35 Vdc, 50 mA maximum current
- 2-wire RS485 communication with Modbus RTU protocol
- Configurable address and baud rate (1,200 to 115,200bps)
- LED indicators for communication and status
- Key for resetting communication parameters to original factory default
- Accuracy (at 25 °C): Pt100, mV, V and mA: ±0.15 % of full scale. Thermocouples: ±0.25 % of the full scale
- Temperature effect: 0.003 % of full scale/°C
- Cold junction compensation for thermocouples: 1 °C at 25 °C. ±0.05 °C / °C
- Isolation: 1000 Vac from inputs (analogue or digital) and power or communication
- Windows-based configurator software
- Dimensions: 72 x 78 x 19 mm
- Mounting: 35 mm DIN rail
- Working temperature: 0 to 70 °C
- Base Unit of Measure: Each