RS485 to Voltage output Module, 8 Channels.

DAT3028

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RS485 to Voltage output Module, 8 Channels, DAT3028.
• UL, CSA, CE.
• Modbus RTU Slave.
• 8 x 0-10V Output.
• RS485 Communication.
• Isolation.
General Description

The DAT3028 Modbus to Voltage Output Converter is an 8-channel module designed to convert Modbus RTU/ASCII commands into isolated voltage signals. It is ideal for applications where digital Modbus communication needs to control voltage-driven devices such as actuators, regulators, or indicators.

Each output channel can be configured for 0–10 V, 1–5 V, or 2–10 V, allowing flexible integration into industrial control systems. The outputs are fully galvanically isolated from the Modbus communication line and the power supply, ensuring safe and reliable operation.

The slew rate is adjustable, enabling users to fine-tune the output response time. In addition to Modbus RTU over RS-485, the DAT3028 is also available in an RS-232 Modbus ASCII version for serial communication.

INPUT OUTPUT POWER SUPPLY
Modbus RS232 0-10 Volts Power Supply Voltage 18-30Vdc
Reverse polarity protection 60Vdc
CURRENT CONSUMPTION CONFIGURATION ISOLATION
Between 30 and 100 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 3 oz 90 g
DAT3028 Datasheet
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Applications
Drawings
DAT3028 User Guide
Modbus Analog Output
Application Note

Specifications
Output: 8 Channels
Voltage 0-10Volt
Communication:  
Modbus RS485
Power Supply: 10 - 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, Inputs and interrupt

Output  
Voltage Output 0 Positive 1 Negative 2
Voltage Output 1 Positive 3 Negative 4
Voltage Output 2 Positive 5 Negative 6
Voltage Output 3 Positive 7 Negative 8
Voltage Output 4 Positive 9 Negative 10
Voltage Output 5 Positive 11 Negative 12
Voltage Output 6 Positive 13 Negative 14
Voltage Output 7 Positive 15 Negative 16
Power Supply (18-30Vdc). Positive J Negative I.
RS 485 Slave Positive (D+)B Negative (D-) A GND C
RS-232D C GND
  E RX
  F TX
Init Pin D Init Gnd C
DAT3028 wiring Diagram.

Applications

DAT3028 Custom products

What is a DAT 3028 61118?
 The DAT 3028 61118 is able to provide a 0-12 Vdc output.

Frequently Asked Questions about DAT3028

What is the DAT3028?
The DAT3028 is an 8-channel Modbus RTU/ASCII module that converts Modbus commands into isolated voltage outputs.
What output ranges are supported?
Each channel can be configured for 0–10 V, 1–5 V, or 2–10 V.
Are the outputs isolated?
Yes. The voltage outputs are isolated from both the Modbus communication line and the power supply.
What communication protocols are supported?
The device supports Modbus RTU over RS-485 and is also available in an RS-232 Modbus ASCII version.
Does the DAT3028 have an adjustable slew rate?
Yes. The slew rate is adjustable, allowing control of the output response time.
How many output channels does it provide?
The DAT3028 provides 8 independent voltage output channels.
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