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DigiRail - I/O Module |
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The DigiRail line of smart transmitters with Modbus RTU comunication interface provide a simple way for integrating analog or digital signals to supervisory systems. Featuring up to two universal input analog signal channels they are the most economical way to deliver analog 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 the undesirable interferences and instabilities in sensor measurements. |
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Analog inputs : programmable for thermocouples (J, K, T, E, N, R, S, B), Pt100, mV, V, mA.
Digital inputs : In voltage, 4 to 35V to activate. Internally limited current in 5mA.
Digital outputs : 3A / 250Vac SPDT relay, resistive load.
Power : 10 to 35Vdc, 50mA maximum current. 2-wire RS485 communication with Modbus RTU protocol.
Configurable address and baud rate (1,200 to 115,200bps).
- Cold junction compensation for thermocouples and compensation for Pt100 3-wire cables.
- Open loop detection for thermocouples, Pt100 and mV.
Sampling rate for 1 analog input : 10Hz for mV, V and mA. 5Hz for t thermocouples and Pt100. Analog input
resolution: 17 bits.
- User defined linearization for the analog inputs.
- 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 full |
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