4 Channel Current and Voltage to Modbus RTU.

DAT10015

Datexel DAT10000 Product Range
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4 Channel Current and Voltage to Modbus RTU DAT10015.
• CE.
• Modbus RTU Slave.
• 4 Current inputs and 4 Voltage inputs.
• RS485 Communication.
• 3 way Isolation.
General Description

The DAT10015 Modbus RTU Converter is an 4-channel input device designed to acquire both current and voltage signals and make them available on a Modbus network. It supports 4 current inputs  or 4 voltage inputs, making it a flexible solution for mixed-signal acquisition in industrial systems.

Current input ranges include 4–20 mA, 0–20 mA, and –20 to +20 mA, while voltage input ranges include 0–10 VDC, 1–5 VDC, 2–10 VDC, and –10 to +10 VDC. This wide compatibility allows the DAT10015 to interface directly with a variety of sensors and transmitters.

The device provides three-way galvanic isolation between inputs, outputs, and power supply, ensuring reliable operation and protection against ground loops. Communication supports both Modbus RTU and Modbus ASCII protocols at baud rates up to 115.2 kbps.

Configuration can be performed via DIP switches for quick setup or by PC software for advanced programming. Local indication LEDs are included for power and communication status, simplifying installation and troubleshooting.

INPUT OUTPUT POWER SUPPLY
4-20 mA, 0-20 mA, -20 - +20 mA. Modbus RS485 Power Supply Voltage 14-30Vdc
0-10 Vdc -10 to 10 Vdc , 0-1 Vdc. Modbus ASCII Reverse polarity protection 60Vdc
CURRENT CONSUMPTION CONFIGURATION ISOLATION
Between 35 and 45 mA DIP Switch Programmable Between Input/Comms/Power Supply 1500Vac.
PC Programmable
EMC HOUSING TEMPERATURE
For Industrial environments Material self-extinguishing Operating Temperature 14°F +140°F -10°C +60°C
Immunity EN 61000-6-2 Dimensions W x H x T 4.1/4" x 4 1/2" x 2 1/4" Storage Temperature -40°F +185°F-40°C +85°C
Emission EN 6100-6-4 106 x 112x x 57 mm Humidity (non condensing) 0-90%
Weight 7 oz 200 g
DAT10015 Datasheet
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Applications
Drawings
DAT10015 User Guide
Specifications
DAT10015 User Guide
Modbus Analog Input Modules
Application Note

Specifications
Input:  
Current 4 Channels. 4-20 mA, 0-20 mA, -20 - +20 mA
Voltage 4 Channels. 0-10 Vdc -10 to 10 Vdc , 0-1 Vdc.
Communication:  
RS485: Modbus RTU, Modbus ASCII.
Power Supply: 10 - 30 Vdc. Reverse polarity protection 60 Vdc.
Current Consumption: 30 mA to 45 mA.
Temperature rating: Operative Temperature 14°F +140°F, - 10°C +60°C Storage Temperature - 40°F +185°F, - 40°C +85°C.
Humidity: (not condensing) 0-90%.
Housing: Material self-extinguishing.
Dimensions: W x L x H 4 1/4X 4 1/2 X 2 1/4 inch, 106 x 112 x 57mm.
Weight: 7 oz 200 g.
EMC. For industrial environments.
Immunity: EN 61000-6-2.
Emission: EN 61000-6-4.
Isolation: Between Modbus Master, Input, Power supply 1500Vac, 50Hz, 1 Minute.
Configuration: PC Configurable, DIP Switch.
Drawings

Analog Inputs.

Voltage Input 0 Positive +V0 Negative GND
Voltage Input 1 Positive +V1 Negative GND
Voltage Input 2 Positive +V2 Negative GND
Voltage Input 3 Positive +V3 Negative GND
Current Input 0 Positive +I0 Negative GND
Current Input 1 Positive +I1 Negative GND
Current Input 2 Positive +I2 Negative GND
Current Input 3 Positive +I3 Negative GND
4 Channel Current and Voltage to Modbus RTU DAT10015 input wiring.

Power Supply and INIT

Power Supply (18-30Vdc). Positive V+ Negative V-.
RS 485 Slave Positive (D+)B Negative (D-) A GND C
Init Pin Init Ref
4 Channel Current and Voltage to Modbus RTU DAT10015 power supply.

Applications
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Application Note DAT10015 Voltage and Current to Modbus RTU
Printed Version

The DAT10015 can be set up with DIP Switches or Software.

  1. SW1, set 1,2,3,4 and 6 to the ON position.
  2. SW2, set 1 to the ON position.
  3. This DIP Switch setting is RTU, Parity None, Baud rate 38400.
Current to Modbus RTU DIP Switch settings

Power and Communication Connection.

  1. Connect 24 Vdc to V+ and V-.
  2. Connect RS485 to D+ and D-.
  3. Connect a Voltage between 0-10Vdc on Voltage Input 0 and a Current on Current Input 0.
  4. Power up the DAT10015 Modbus RTU Voltage and Current input Slave.
It is advisable to use the DAT3580 to connect the DAT10015 to the PC. The advantage of using the DAT3580 is that it will isolate your PC from the DAT10015. The DAT3580 options are USB, Ethernet and RS232. If the DAT3580USB version is used, install the USB drivers. If the DAT3580MBTCP or the DAT3580GW are used, make sure the ethernet parameters are compatible with the net and transmission of data over port 502 is allowed.
Voltage and Current to Modbus RTU

Set-up PC.

  1. Download the 3000-10000 Software from www.datexel.com download page.
  2. Close all other software.
  3. UnZIP the Modbus_3000_10000_setup software.
  4. Run the 3000-10000 software.
  5. To start the software click the English version.
Start page for the Modbus 3000-10000 software

Set Up Communication.

  1. The software should automatically select the correct communication port. It is possible to override the communication port or refresh if you change the physical port.
  2. Select the communication port setting as per the DIP Switches Baud rate 38400bps, RTU, Data Bit 8, Stop Bit1, Parity None. Click Open communication. The Port Status will change to green.
Communication screen for the Modbus 3000-10000 software

Selecting the DAT10015 Voltage and Current to Modbus RTU.

  1. The green light only indicates the port is open. Even if the settings are incorrect the light will turn green.
  2. Select Model and the drop down navigation will appear.
  3. Select DAT10015.
Selecting the DAT10015 Current to Modbus RTU

Setting the Address of the DAT10015 Modbus Slave.

  1. The Address should be 1, if not change to 1, unless the DIP Switches have been changed.
  2. Click "Read data" (Single poll).
  3. The screen should now display the below screen.
  4. If there is a function error, no CRC match, check Baud rate, RS485 connection or Modbus Slave Address.
  5. This needs to be fixed before further progress.
  6. Also, it is advisable to recheck the DIP Switch settings.
Selecting Address 1 on the DAT10015

Setting the analog input on the DAT10015.

  1. The DAT10015 has 4 dedicated channels to Voltage and Current hence you do not have to select the input type.
  2. Click the Read data or Continuous Read button.
Selecting Voltage or Current input for the Modbus RTU DAT10015.

Reading the analog input on the DAT10015.

  1. The measured value should now be displayed under the Measures label.
Reading the input for voltage or Current input to Modbus RTU Module

Explanation of Communication parameters for Modbus Slave DAT10015.


The actual Address of the DAT10015 connected.

The actual baud rate of the DAT10015 connected.

The actual parity mode of the DAT10015 connected.

The actual number of bit selection of the DAT10015 connected.

The actual Modbus modality (RTU or ASCII) set for the DAT10015 connected

The string read from the DAT10015 of 4 ASCII characters used to name it example DAT10015.

The firmware version read from the DAT10015.

The watchdog time read from the DAT10015 is in steps of 0.5 seconds.

The delay time between the reception of a query and transmission of the response. Expressed as steps of 1 millisecond.

Indicates if the bit to enable the watchdog time of the device has been set: red indicates the bit is set, grey indicates the bit is not set.

Indicates if the watchdog timer event is occurred: red if the event occurs, grey if the event has not occurred. This condition is also signaled by the blinking of the led “PWR” of the device and the safe state of the digital outputs.

Indicates if the Power up event has occurred: red if the event has occurred, grey if the event has not occurred. This condition is also signaled by the power-up state of the digital outputs.

Frequently Asked Questions about DAT10015

What is the DAT10015?
The DAT10015 is an 4-channel Modbus RTU input device with 4 current inputs and 4 voltage inputs, designed for industrial signal acquisition.
What input signals does it support?
Current inputs: 4–20 mA, 0–20 mA, –20 to +20 mA. Voltage inputs: 0–10 VDC, 1–5 VDC, 2–10 VDC, –10 to +10 VDC.
Does the DAT10015 provide isolation?
Yes. It provides three-way galvanic isolation between input, output, and power supply, eliminating ground loops and improving reliability.
What communication protocols are supported?
The device supports both Modbus RTU and Modbus ASCII protocols, with baud rates up to 115.2 kbps.
How is the DAT10015 configured?
It can be configured via DIP switches for basic setup or programmed via PC software for advanced settings.
Does it have local indication?
Yes. LED indicators are provided for power and communication status, simplifying installation and diagnostics.