Modbus Isolated Output

DAT3024ISO

DAT3024ISO Modbus 4-20 mA Isolated Output.
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Modbus Isolated Output.
• CE.
• Modbus RTU Slave.
• 4 x 4-20mA or 0-10V Output.
• RS485 Communication.
• Each Output Isolated.
General Description

The DAT3024ISO is an isolated version of the DAT3024, featuring four fully isolated analog output channels. Each output is isolated from the others, as well as from the Modbus RTU communication line and the power supply, providing superior protection against ground loop interference in industrial applications.

The module communicates using Modbus RTU over RS-485 at speeds up to 115200 bps. It converts Modbus commands into four independently isolated outputs, which can be configured as active current, passive current, or voltage. Each output can be scaled anywhere between 0–20 mA or 0–10 V.

The default baud rate is 38400 bps, with support for high-speed communication up to 115200 bps. The analog outputs feature high resolution, capable of providing precision down to the third decimal place (e.g., 4.000 mA or 0.000 V).

With 1500 Vac isolation between channels, communication, and power supply, the DAT3024ISO is built for reliable performance in demanding industrial environments.

INPUT OUTPUT POWER SUPPLY
Modbus RS485 4-20 MA Power Supply Voltage 20-30Vdc
0-10 Volts Reverse polarity protection 60Vdc
CURRENT CONSUMPTION CONFIGURATION ISOLATION
Between 150 mA Max 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 3 oz 90 g
DAT3024ISO Datasheet
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Applications
Drawings
DAT3024ISO User Guide
Modbus Analog Output

Specifications
Output: 4 Channels
mA 0-20mA , 4-20mA.
Voltage 0-10Volt
Communication:  
Modbus RS485
Power Supply: 20 - 30 Vdc. Reverse polarity protection 60 Vdc.
Current Consumption: 30 mA.
Temperature rating: Operative Temperature -4°F +140°F -20°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 3 3/4X 3 1/2 X 1 7/8 inch, 90 x 74 x 48mm.
Weight: 7 oz 200 g.
EMC. For industrial environments.
Immunity: EN 61000-6-2.
Emission: EN 61000-6-4.
Isolation: Between Modbus Master, Slave/Power supply 1500Vac, 50Hz, 1 Minute.
Configuration: PC Configurable.
Drawings

Power Supply.

Power Supply (20-30Vdc). Positive J Negative I.
RS 485 Slave Positive (D+)B Negative (D-) A GND C
Init Pin D Init Gnd C
DAT3024ISO Power Supply and Comms Port

4-20 mA Passive Output.

Output  
Passive external 24 Vdc power  
Current Output 0 Positive 1 Negative 4
Current Output 1 Positive 5 Negative 8
Current Output 2 Positive 9 Negative 12
Current Output 3 Positive 13 Negative 16
DAT3024ISO Passive 4-20 mA current analog 4 channel output

4-20 mA Active Output.

Output  
Active internal power  
Current Output 0 Positive 1 Negative 2
Current Output 1 Positive 5 Negative 6
Current Output 2 Positive 9 Negative 10
Current Output 3 Positive 13 Negative 14
DAT3024ISO Passive 4-20 mA current analog 4 channel output

Voltage Output.

Output  
Voltage Output 0 Positive 3 Negative 4
Voltage Output 1 Positive 7 Negative 8
Voltage Output 2 Positive 11 Negative 12
Voltage Output 3 Positive 15 Negative 16
DAT3024ISO 0 to Volts output

Applications

Frequently Asked Questions about DAT3024ISO

What is the DAT3024ISO?
The DAT3024ISO is a 4-channel Modbus RTU to analog output converter, with each output channel fully isolated from the others, the Modbus line, and the power supply.
How is it different from the DAT3024?
Unlike the standard DAT3024, the DAT3024ISO provides channel-to-channel isolation, offering superior protection against ground loops and noise.
What output signals does it support?
Each channel can be configured for active current, passive current, or voltage output, scalable between 0–20 mA or 0–10 V.
What is the communication speed?
The default Modbus baud rate is 38400 bps, with support for high-speed communication up to 115200 bps.
What resolution does the analog output provide?
The analog outputs provide high resolution, with precision down to the third decimal place (e.g., 4.000 mA or 0.000 V).
Does it provide isolation?
Yes. Each channel is isolated from the others, and the module provides 1500 Vac galvanic isolation between outputs, communication, and power supply.
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