ModBus TCP to 4-20 mA Output.

DAT8024

Modbus TCP to 4-20mA
MODBUS TCP to 4-20mA output DAT8024.
• Modbus TCP to 4-20mA Output.
• 4 Channel.
• 4-20mA Output, 0-10V Output.
• Isolation.
General Description

The DAT8024 is a versatile 4-channel isolated Modbus TCP converter designed for industrial automation and process control applications. It converts Modbus TCP signals over Ethernet 10/100BaseT into precise analog outputs, supporting both 4-20mA and 0-10V output types. In addition, it provides extended output ranges including 2 to 10V and 0mA to 20mA, allowing for flexible integration with a wide variety of control systems.

The DAT8024 offers both active and passive outputs. Passive outputs require an external 24 Vdc power source to operate, similar to standard 2-wire transmitters. Active outputs, on the other hand, include a built-in 24 Vdc power source, simplifying installation and reducing the need for external power supplies.

All outputs, Ethernet communication, and power supply are fully isolated from each other up to 1500 VAC for 1 minute. This high level of electrical isolation ensures safe operation, protects connected devices, and prevents signal interference in demanding industrial environments.

The DAT8024 supports a wide input voltage range from 18 to 30 Vdc, making it compatible with diverse power systems. Its compact design allows for easy DIN Rail mounting, providing a neat and organized installation within control panels or industrial racks.

Overall, the DAT8024 is a reliable, high-performance solution for converting Modbus TCP signals to analog outputs, offering precision, flexibility, and robust isolation for modern industrial applications.

INPUT OUTPUT POWER SUPPLY
Modbus TCP Ethernet 10/100T 4-20 mA, 0-20 mA Power Supply Voltage 18-30Vdc
  0-10V, 2-10V. Reverse polarity protection 60Vdc
CURRENT CONSUMPTION CONFIGURATION ISOLATION
Between 60 and 115 mA PC Programmable Between Input/Comms/Power Supply 1500Vac.
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" x 4 3/4" x 3/4 " Storage Temperature -40°F +185°F-40°C +85°C
Emission EN 6100-6-4 100 x 120 x 22.5 mm Humidity (non condensing) 0-90%
Weight 7 oz 200 g
DAT8024 Datasheet
Buy Online
Applications
Drawings
DAT8024 User Guide
Modbus TCP Modules
Application Note

Specifications
Output:  
Channels 4 Channels.
Current 4-20mA, 0-20 mA.
Voltage 0-10V, 2-10V.
Communication:  
Ethernet 10/100T: Modbus TCP.
Power Supply: 18 - 30 Vdc. Reverse polarity protection 60 Vdc.
Current Consumption: 60 mA Standby 115 mA Max.
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 H x T 4 3/4 x 4 x 7/8 inch, 120 x 100 x 22,5mm.
Weight: 6 oz 160 g.
EMC. For industrial environments.
Immunity: EN 61000-6-2.
Emission: EN 61000-6-4.
Isolation: Input, Each Channel, Power Supply, 1500Vac, 50Hz, 1 Minute.
Configuration: PC Configurable.
Drawings

DAT8024 Power Supply and INIT Wiring Diagram

Power Supply (18-30Vdc). Positive O Negative P.
Init Pin Q Init Gnd P
DAT8000 power supply and Init

Input Terminals

Voltage Output
Output 0 Positive 3 Negative 4
Output 1 Positive 7 Negative 8
Output 2 Positive 11 Negative 12
Output 3 Positive 15 Negative 16
Current Output Passive
Output 0 Positive 1 Negative 4
Output 1 Positive 5 Negative 8
Output 2 Positive 9 Negative 12
Output 3 Positive 13 Negative 16
Current Output Active
Output 0 Positive 2 Negative 1
Output 1 Positive 6 Negative 5
Output 2 Positive 10 Negative 9
Output 3 Positive 14 Negative 13
MODBUS TCP Ethernet to 4-20mA output DAT8024.

Applications
Back to General Description
Application Note Modbus TCP 4-20mA Output DAT8024.
Printed Version

Start-up.

  1. Connect 24 Vdc to O and P.
  2. Connect CAT5 crossover cable to PC and Ethernet RJ45 Port on the DAT8024.
  3. Connect a Multimeter to measure Current to terminals 1 and 2 or terminals 3 and 4 to measure Voltage.
  4. Power up the DAT8024 Modbus TCP analog output Module.

It is extremely important to use a Cat 5 Crossover cable unless a router is used.

Modbus TCP analog output Module

To configure the DAT8024.

  1. Open your web browser.
  2. Type 192.168.1.100 into the Address bar.
  3. Click enter and the following page should be seen.
IP Address for Modbus TCP analog output Module

Entering the User-name and Password.

  1. The password is Fact_user.
  2. The Password is Fact_pwd.
  3. Click Enter, Run to run the software.
Communication screen for the DAT8024 software

Select the Language.

  1. Click English.
  2. Click enter.
The device name should appear in the center of the page. You are also able to “Logout” of the DAT8024, go “home”, or go “back” to the page before, by clicking the icons on the page.
Selecting the DAT8024

How to drive the analog output.

  1. Select Analog Output.
  2. Select Voltage or Current output.
  3. Enter a number corresponding with the required output.
  4. Click Write Ch0.
There is also the option to enter the desired setting for instantaneous output. The fail save setting and the start up output. Enter the required setting and Click Save All.
Setting up the main menu TCP output module Setting up the mA output on a Modbus TCP module

Setting a 4-20mA Output.

  1. Under the Output Type select 20 mA.
  2. Under value type 4 mA.
  3. Click Write Ch0.
  4. Check the mA output on Terminal 1 and 2.
  5. You can also enter an amount in Safe and power-up and click Write CH0.
  6. Recycling the power will check these functions.
Each channel may be different to the other channels, Channel 1 could be mA output and Channel 0, 2, and 3 could be voltage Output. All channels are isolated from each other, the Power Supply and the Modbus TCP.
Selecting 4 mA output on the DAT8024

Setting a 0-10 Volt Output.

  1. Under the Output type select 10V.
  2. Under Value type 10V.
  3. Click Write Ch0.
  4. Check the Voltage output on Terminal 3 and 4.
  5. You can also enter an amount in Safe and power-up and click Write CH0.
  6. Recycling the power will check these functions.
Each channel may be different to the other channels, Channel 1 could be mA output and Channel 0, 2, and 3 could be voltage Output. All channels are isolated from each other, the Power Supply and the Modbus TCP.
Selecting Voltage output on the DAT8024

Network Settings.

  1. Modify the network settings.
  2. Click Save to save the new Network settings.
The IP Address must be unique to the network.
Modbus module network settings

System Configuration Settings.

  1. To change the name from DAT8024 type the new name and click enter
  2. To change the Modbus Address for the Modbus TCP module, change it under the ModBus Address label and click save.
  3. You can enable the Watchdog timer and set a time.
  4. Set up the watchdog event and the power-up event register.
System config file for Modbus TCP module

Software Update.

  1. Obtain new software from Datexel and save to the local machine.
  2. Enter the User_name and the password.
  3. Click upgrade and follow the prompts.
  4. The firmware version of the DAT8024 is displayed on this page.
upgrading the firmware Modbus TCP Device

The User_name and Password page.

  1. Enter the new User_name click save.
  2. Enter the new Password click save.
Changing user name and password on a Modbus TCP output device
Frequently Asked Questions
What output types does the DAT8024 support?
The DAT8024 supports 4-20 mA, 0-20 mA, 0-10 V, and 2-10 V outputs, allowing flexible integration with a wide range of control systems and devices.
Does the DAT8024 provide active or passive outputs?
The DAT8024 provides both active and passive outputs. Passive outputs require an external 24 Vdc power source, while active outputs have a built-in 24 Vdc source, simplifying installation.
Is the DAT8024 isolated?
Yes, all outputs, Ethernet communication, and power supply are fully isolated from each other up to 1500 VAC for 1 minute, ensuring safe operation and preventing interference.
What voltage range does the DAT8024 accept for power supply?
The DAT8024 operates with a wide input voltage range from 18 to 30 Vdc, making it compatible with many industrial power systems.
How is the DAT8024 mounted?
The DAT8024 is designed for standard DIN Rail mounting, allowing easy installation and neat organization within control panels.
Can the DAT8024 be used in industrial automation systems?
Yes, with its Modbus TCP interface and precise analog outputs, the DAT8024 is ideal for converting Modbus TCP signals to analog signals in industrial automation and process control applications.
What is a DAT8024 41016?
The DAT8024 41016 is a Modbus TCP Master device designed to read data from a dedicated client using the Read Holding Registers (Function 03) command. It can read up to four sequential holding registers (4xxxx) and provides a 4-20 mA output, which corresponds to a 4-20 mA input on a DAT8017-I or other compatible Modbus servers. For proper operation, the target registers must be sequential; otherwise, the DAT8024 41016 can only convert a single register. Additionally, it includes zero and span mathematical corrections, allowing for value conversions—such as 0-100% scaled to 4000-20000—which directly corresponds to a 4-20 mA output.
What is a DAT8024 240218?
The DAT8024 240218 is similar to the DAT8024 41016 but uses the function 04 read input registers instead of function 03.