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DigiRail-VA
INSTRUCTION MANUAL -
MAIN FEATURES ............................................................................................................................................................... 2
SPECIFICATIONS .............................................................................................................................................................. 3
INSTALLATION AND OPERATION .................................................................................................................................... 4
MECHANICAL INSTALLATION ..................................................................................................................................... 4
DIMENSIONS .......................................................................................................................................................... 4
ELECTRICAL INSTALLATIONS AND OPERATION ..................................................................................................... 4
INSTALLATION RECOMMENDATIONS ................................................................................................................. 5
POWER SUPPLY .................................................................................................................................................... 5
RS485 ...................................................................................................................................................................... 5
USB INTERFACE .................................................................................................................................................... 5
AC INPUTS .............................................................................................................................................................. 6
USING CURRENT TRANSFORMERS AND VOLTAGE TRANSFORMERS ..................................................... 7
MEASUREMENT OF FREQUENCY AND POWER FACTOR ........................................................................... 8
4-20 MA OUTPUT .................................................................................................................................................... 8
0-10 V OUTPUT ....................................................................................................................................................... 9
INDICATOR LIGHTS (LEDS) ............................................................................................................................................ 11
USB DRIVER INSTALLATION .......................................................................................................................................... 12
WINDOWS 8 ............................................................................................................................................................... 12
DEFINITION AND SELECTION OF SERIAL PORT (COM) - WINDOWS ......................................................................... 16
CONFIGURATION SOFTWARE ....................................................................................................................................... 17
EQUIPMENT SOFTWARE (FIRMWARE) UPDATE .................................................................................................... 18
MODBUS COMMANDS AND REGISTERS TABLE .......................................................................................................... 19
SUPPORTED MODBUS COMMANDS ....................................................................................................................... 19
READ HOLDING REGISTERS - 03H ................................................................................................................... 19
WRITE SINGLE REGISTER - 06H ....................................................................................................................... 19
WRITE MULTIPLE REGISTERS - 16H ................................................................................................................. 19
TABLE OF HOLDING REGISTERS ............................................................................................................................ 19
DETAILS ABOUT SOME REGISTERS ....................................................................................................................... 19
REGISTERS 20 TO 28 - MEASUREMENT VALUE IN INTEGER FORMAT ........................................................ 19
REGISTERS 200 AND 201 - SERIAL NUMBER ................................................................................................... 20
REGISTER 202 - FIRMWARE VERSION ............................................................................................................. 20
FLOATING POINT FORMAT ....................................................................................................................................... 20
WARRANTY ...................................................................................................................................................................... 21
NOVUS AUTOMATION
V1.0x D
1/21
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Summary of Contents for Novus DigiRail-VA
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Page 1: Table Of Contents
DigiRail-VA INSTRUCTION MANUAL - V1.0x D MAIN FEATURES ................................2 SPECIFICATIONS ................................3 INSTALLATION AND OPERATION ............................ 4 MECHANICAL INSTALLATION ............................. 4 DIMENSIONS ................................4 ELECTRICAL INSTALLATIONS AND OPERATION ..................... 4 INSTALLATION RECOMMENDATIONS ......................... 5 POWER SUPPLY ..............................5 RS485 ..................................5 USB INTERFACE .............................. -
Page 2: Main Features
The measured values can be read through its RS485/Modbus RTU interface, in addition to being transmitted simultaneously using the 4-20 mA or 0-10 V outputs. These features make the DigiRail-VA a great solution for measuring AC values in single-phase machines and facilities. This product is not intended for commercial measurement of electrical energy! -
Page 3: Specifications
DigiRail-VA SPECIFICATIONS Power Supply: 10 to 40 Vdc. Typical consumption: 50 mA @ 24 V. Operation Temperature: 0 to 60 °C. Dimensions: 99.5 x 114.0 x 17.5 mm Weight: 96 g Enclosure: PA66, with metallic attachment for 35 mm DIN track. -
Page 4: Installation And Operation
Fig. 01 – Dimensions of the DigiRail-VA ELECTRICAL INSTALLATIONS AND OPERATION The DigiRail-VA has connectors for the power supply, for the inputs for AC measurement, for the output for analog transmission and for the RS485 serial communication interface. Furthermore, it has a USB mini-B interface. -
Page 5: Installation Recommendations
• Section of used wires: minimum gauge of 0,14 mm². POWER SUPPLY The terminals 11 and 12 (or 10 and 12) are intended for the power supply for DigiRail-VA. The polarity of the power supply must be carefully observed and the voltage level. -
Page 6: Ac Inputs
SIGN COMMOM The current measurement is done by an internal shunt resistor, so that the DigiRail-VA is connected in series with the load to be measured. The following figure illustrates the device connected to the measuring circuit. Fig. 04 – Measurement of voltage and current Despite being common simultaneous measurement of voltage and current, you can connect just the part on the voltage or current for measurement. -
Page 7: Using Current Transformers And Voltage Transformers
DigiRail-VA Fig. 06 – Solely measurement of current USING CURRENT TRANSFORMERS AND VOLTAGE TRANSFORMERS To expand the capacity of measuring levels of current or voltage DigiRail-VA, you can use voltage and/or current transformers. Fig. 07 – Connecting with current transformer Fig. -
Page 8: Measurement Of Frequency And Power Factor
The transformer ratio should be informed in DigiRail-VA settings so you can make the correction of the measured value, adjusting to reality. Similarly, if the use of a transformer produces a phase shift between current and voltage in the secondary, can be corrected through the option "Allow the Correction of Phase"... -
Page 9: 0-10 V Output
Therefore, care must be taken when using the outputs 4-20 mA and 0-10 V to send signals to other devices that are powered by the same source than the DigiRail-VA. If outputs 4-20 mA and 0-10 V are used simultaneously there may be problems if both are read by another computer that has no they own isolated inputs. - Page 10 Therefore, care must be taken when using the outputs 4-20 mA and 0-10 V to send signals to other devices that are powered by the same source than the DigiRail-VA. If outputs 4-20 mA and 0-10 V are used simultaneously there may be problems if both are read by another computer that has no they own isolated inputs.
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Page 11: Indicator Lights (Leds)
5 blinks every 2 seconds Input frequency out of operating range Possible hardware malfunction Communication LED: It indicates the RS485/Modbus communication. Blinks when the DigiRail-VA is sending a Modbus frame via the RS485 interface (in response to a command). NOVUS AUTOAMTION 11/21... -
Page 12: Usb Driver Installation
Following are the steps and guidance screens for the driver installation. WINDOWS 8 1. Connect the DigiRail-VA in a USB port on your computer. Windows will try to install a driver automatically and will not succeed, because the necessary driver is not in its standard library. - Page 13 DigiRail-VA 4. Click on the button "Update Driver". 5. Ask to "Browse my computer for driver software". 6. Enter the path of the folder where the drivers are located (folder where you saved them downloaded from the site.) NOVUS AUTOAMTION...
- Page 14 DigiRail-VA 7. Wait for the installation to take start. 8. Windows will question this driver installation. Confirm selecting the option “Install”. 9. A message indicating successful installation will display. NOVUS AUTOAMTION 14/21...
- Page 15 DigiRail-VA 10. Returning to the Device Manager screen, you can check which virtual serial port is allocated to the DigiRail-VA. NOVUS AUTOAMTION 15/21...
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Page 16: Definition And Selection Of Serial Port (Com) - Windows
In some cases, the serial ports can be checked as in use even when the associated device is no longer installed on your computer. In this case it is safe to associate this port to DigiRail-VA. The following figure presents the view of the device manager containing a DigiRail-VA, and the screens showing the property screens where you can reset the associated COM port. -
Page 17: Configuration Software
“DigiConfigSetup.exe” available on our website. Check our site to obtain the DigiConfig installer and the additional manuals. The DigiRail-VA can be set either by its USB or RS485 interfaces. Do not forget to configure its Modbus address as desired. Important: For initial configuration, connect the DigiRail-VA to the computer by the USB cable and install the drivers. -
Page 18: Equipment Software (Firmware) Update
DigiRail-VA EQUIPMENT SOFTWARE (FIRMWARE) UPDATE DigiRail-VA can update its internal software (firmware), allowing the benefits of new versions with new characteristics or important improvements to be accessed without needing to send the equipment to technical assistance. The latest update is available for download on the manufacturer website. The update process is done by DigiConfig, using the related tab. -
Page 19: Modbus Commands And Registers Table
MODBUS COMMANDS AND REGISTERS TABLE The DigiRail-VA accepts some Modbus commands that are sent to its Modbus’ own address, operating as a network slave. Commands forwarded to other slaves (routing) will be sent in a transparent way. The following listed Modbus RTU commands (functions) are implemented, and these are interpreted by DigiRail-VA. -
Page 20: Registers 200 And 201 - Serial Number
If the version is “1.00” it will read the value as “100”. If the version is "2,04" it will read it as "204". FLOATING POINT FORMAT The DigiRail-VA uses floating point values of single precision (32 bits) according to the IEEE-754 standard (ANSI / IEEE Standard for Binary Floating-Point Arithmetic). -
Page 21: Warranty
DigiRail-VA WARRANTY Warranty conditions are available on our website: www.novusautomation.com/warranty. NOVUS AUTOAMTION 21/21...
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