Novus DIGIRAIL-2A, Instruction Manual, Page: 2 / 2

DigiRail-2A
NOVUS AUTOMATION 2/2
CONFIGURATION
The user will receive the module perfectly calibrated. No adjustment
will be required. The original configuration features the following
features:
Sensor thermocouple type J, Indication °C, Filter = 0
Address = 247, Baud Rate = 1200, Parity = Even,
1 Stop Bit
The application DigiConfig is a program for Windows used to
configure the DigiRail modules. For its installation, run the
DigiConfigSetup.exe file, available on our website and follow the
instructions as shown.
DigiConfig is provided with a help file. For using it, start the
application and select the "Help" menu or press the F1 key.
Go to www.novusautomation.com to obtain the DigiConfig installer
and the additional product manuals.
SPECIFICATIONS
Inputs: 2 universal analog inputs.
Input signals: Configurable. Refer to Table 2 .
Thermocouples : Types J, K, T, R, S, B, N and E, according to
NBR 12771. Impedance >> 1M Ω
Pt100 : 3-wires type,
α
= .00385, NBR 13773, Excitation : 700
µ
A.
For using Pt100 2 - wires, interconnect terminals 2 and 3.
When gauging the module using the calibrator for
Pt100, be sure that the minimum current requir ed for
it is compatible with the specified excitation current:
700
µ
A.
Other Signals :
• 0 to 20 mV, - 10 to 20 mV, 0 to 50 mV.
Impedance >> 1 M
Ω
•
0 to 5 Vdc, 0 to 10 Vdc. Impedance >> 1 M
Ω
•
0 to 20 mA, 4 to 20 mA.
Impedance = 100 Ω (+ 1.7 Vdc)
Overall accuracy (at 25°C): Thermocouples : 0.25 % of the
maximum range,
±
1 °C; Pt100, voltage and current: 0.15 % of the
maximum range.
In the standard model, the 0 -5 Vd c and 0 - 10 V dc
inputs are not factory calibrated and have an
accuracy of about 5 %.
When properly calibrated, they can have an accuracy
of up to 0.15 %.
INPUT SIGNAL MAXIMUM MEASURING RANGE
Thermocouple J - 130 to 940 °C (- 202 to 1724 °F)
Thermocouple K - 200 to 1370 °C (- 328 to 2498 °F)
Thermocouple T - 200 to 400 °C ( - 328 to 752 °F)
Thermocouple E - 100 to 720 °C (- 148 to 1328 °F)
Thermocouple N - 200 to 1300 °C (- 328 to 2372 °F)
Thermocouple R 0 to 1760 °C (- 32 to 3200 °F)
Thermocouple S 0 to 1760 °C (- 32 to 3200 °F)
Thermocouple B 500 to 1800 °C (932 to 3272 °F)
Pt100 - 200 to 650°C (- 328 to 1202 °F)
INPUT SIGNAL MAXIMUM MEASURING RANGE
0 to 20 mV
- 10 to 20 mV
0 to 50 mV
*
0 to 5 Vdc Adjustable between - 31000 and +31000
*
0 to 10 Vdc
0 to 20 mA
4 to 20 mA
Table 2 – Sensors and signals accepted by the module
Sampling rate: from 2.5 to 10 sample s per second
Internal compensation of Cold Junction for thermocouples.
Power
: 10 to 35 Vdc. Typical consumption: 50 mA @ 24 V. Internal
protection against polarity inversion.
Electrical insulation between inputs and supply/serial port:
1000 Vac .
Serial communication: RS485 at two wires, Modbus RTU protocol.
Configurable parameters: Communication speed: F rom 1200 to
115200 bps; Parity: Even, odd or none
Key for restoring communication parameters: The RCom key, at
the front panel, will set the device in diagnostics mode (Address =
246 ; Baud rate = 1200 ; Parity = Even, Stop Bit = 1 ), able to be
detected and configured by the DigiConfig software.
Frontal light indicators for communication and status:
TX : Signalizes that the device is sending data on the RS485
line.
RX : Signalizes that the device is receiving data on the RS485
line.
Status : When the light is permanently on, this means that the
device is in normal operation. When the light is flashing in a
second interval (approximately), this means that the device is in
diagnostics mode. When the light is flashing fast, this means
that there is an internal error.
Operating temperature : 0 to 70 °C
Operational relative humidity : 0 to 90 % RH
Envelope of the terminals: Polyamide
Assembly: DIN 35 mm rail
Certification : CE
Dimensions: Refer to Figure 3 .
Figure 3 – Dimensions
WARRANTY
Warranty conditions are available on our website
www.novusautomation.com/warranty .