1784-U2DHP | Allen-Bradley USB-to-Data Highway Plus Programming Adapter with Cable, 2.44 m (8 ft)
1784-U2DHP | Allen-Bradley USB-to-Data Highway Plus Programming Adapter with Cable, 2.44 m (8 ft)
1784-U2DHP | Allen-Bradley USB-to-Data Highway Plus Programming Adapter with Cable, 2.44 m (8 ft)
1784-U2DHP | Allen-Bradley USB-to-Data Highway Plus Programming Adapter with Cable, 2.44 m (8 ft)
1784-U2DHP | Allen-Bradley USB-to-Data Highway Plus Programming Adapter with Cable, 2.44 m (8 ft)
1784-U2DHP | Allen-Bradley USB-to-Data Highway Plus Programming Adapter with Cable, 2.44 m (8 ft)
    1784-U2DHP | Allen-Bradley USB-to-Data Highway Plus Programming Adapter with Cable, 2.44 m (8 ft)
    1784-U2DHP | Allen-Bradley USB-to-Data Highway Plus Programming Adapter with Cable, 2.44 m (8 ft)
1784-U2DHP | Allen-Bradley USB-to-Data Highway Plus Programming Adapter with Cable, 2.44 m (8 ft)
1784-U2DHP | Allen-Bradley USB-to-Data Highway Plus Programming Adapter with Cable, 2.44 m (8 ft)

1784-U2DHP | Allen-Bradley USB-to-Data Highway Plus Programming Adapter with Cable, 2.44 m (8 ft)

Part #: 1784-U2DHP Manufactured by: Allen-Bradley
$5,249.00
$5,249.00
9 in Stock
Condition: New – Open box
Shipping calculated at checkout.
Product Overview
The Allen-Bradley 1784-U2DHP cable is a Data Highway Plus cable for connections between a PLC 5 processor and a computer. ...  Read more
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Product Description P/N: 1784-U2DHP

Description / Specifications

Description 

The Allen-Bradley 1784-U2DHP is a USB-to-Data Highway Plus (DH+) communication interface cable. It allows a computer or programming workstation to connect directly to a DH+ network through a standard USB port. This portable adapter is widely used for configuring, programming, and troubleshooting PLC-5 and SLC 5/04 controllers in industrial automation environments.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Series PLC 5
Part Number 1784-U2DHP
Temperature 0-55 degrees Celsius
Power dissipation 1.575 watts
Current 125 mA
Description Data Highway Plus (DH+) cable
Altitude 2000 meters
Enclosure IP 30
Communication rate 57.6 Kbps @ 3048 m (10,000 ft) 115.2 Kbps @ 1524 m (5000 ft) 230.4 Kbps @ 762 m (2500 ft)
LED indicators USB Power DH+ network
Compatible Processors PLC-5 processors except (Classic PLC-5 processors, such as PLC-5/10, PLC-5/12, PLC-5/15, and PLC-5/25); SLC 5/04 processors
Supply voltage 5.00V DC 5.25V DC, max
Power dissipation, max 1.575 W
Voltage 5 Volts DC

  

 

Information About 1784-U2DHP

The 1784-U2DHP provides seamless connectivity between modern PCs and legacy Allen-Bradley controllers operating on DH+ networks. It features a USB connector on one end and an 8-pin DIN connector on the other, with a total length of 3.05 m (USB cable 0.61 m, DH+ cable 2.44 m). It supports three DH+ communication rates: 57.6 kbps (maximum network length 3048 m), 115.2 kbps (1524 m), and 230.4 kbps (762 m). The device includes a 3-position switch for node address configuration and LED indicators for USB status, power, and DH+ network activity. It draws power from the USB port, consuming 125 mA at 5 VDC (1.575 W dissipation), with isolation voltage of 30 V. The adapter is enclosed in an IP30-rated housing and is designed for operation in environments from 0 to 55 °C. Typical applications include connecting programming workstations to PLC-5 processors (except classic PLC-5/10, 5/12, 5/15, and 5/25) and SLC 5/04 controllers, replacing older PCMCIA-based solutions such as the 1784-PCMK with PCM6 cables.

Key Features:

  • Design: Portable USB-to-DH+ communication adapter.
  • Compatibility: Supports PLC-5 (except classic models) and SLC 5/04 controllers.
  • Connectors: USB interface to PC; 8-pin DIN connector for DH+ network.
  • Cable Length: 3.05 m total (0.61 m USB, 2.44 m DH+).
  • Protocols: Data Highway Plus (DH+) using RS-485 convention.
  • Data Rates: 57.6 kbps (3048 m), 115.2 kbps (1524 m), 230.4 kbps (762 m).
  • Power Supply: 5 VDC from USB port, 125 mA current draw, 1.575 W dissipation.
  • Indicators: LED status for USB, power, and DH+ network activity.
  • Housing: IP30-rated enclosure, portable design.
  • Environmental Ratings: Operating 0…55 °C, storage –40…85 °C.

The 1784-U2DHP provides a reliable and portable interface for connecting modern computers to legacy DH+ networks, ensuring continued productivity in systems using PLC-5 and SLC controllers.

Frequently Asked Questions about 1784-U2DHP
Question: What is the purpose of the 1784-U2DHP module?
Date Update:30/05/2025
Answer:

The 1784-U2DHP is a USB to DeviceNet adapter used to connect a PC or laptop to a DeviceNet network. It enables configuration, programming, and troubleshooting of DeviceNet devices by providing a USB interface for communication with DeviceNet networks.

Question: Which operating systems are compatible with the 1784-U2DHP?
Date Update:30/05/2025
Answer:

The 1784-U2DHP supports Windows operating systems including Windows 7, Windows 10, and Windows 11 (both 32-bit and 64-bit versions). It requires installation of the appropriate DeviceNet driver software provided by Rockwell Automation.

Question: What software is needed to use the 1784-U2DHP for DeviceNet communication?
Date Update:30/05/2025
Answer:

To use the 1784-U2DHP, you need Rockwell Automation’s DeviceNet software such as RSNetWorx for DeviceNet or RSLogix 5000 (now Studio 5000 Logix Designer). These software packages enable device configuration, network diagnostics, and control programming.

Question: What are the physical and electrical characteristics of the 1784-U2DHP?
Date Update:30/05/2025
Answer:

The adapter connects via USB on one end and a DeviceNet network on the other. It is powered through the USB port, eliminating the need for external power. It supports DeviceNet speeds up to 500 kbps and includes LED indicators for power and network activity status.

Question: Has the 1784-U2DHP been replaced or is there a recommended alternative?
Date Update:30/05/2025
Answer:

The 1784-U2DHP is still available but has largely been superseded by the 1784-U2DN, which provides similar functionality with enhanced driver support and compatibility with newer Windows versions. For modern PC-to-DeviceNet connections, Rockwell Automation recommends considering the 1784-U2DN as a replacement.

IQElectro is not an authorized distributor.
IQElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 1784-U2DHP is a USB-to-Data Highway Plus (DH+) communication interface cable. It allows a computer or programming workstation to connect directly to a DH+ network through a standard USB port. This portable adapter is widely used for configuring, programming, and troubleshooting PLC-5 and SLC 5/04 controllers in industrial automation environments.

 

 

Technical Specifications 

Condition New/Never Used Surplus
Brand Allen-Bradley
Series PLC 5
Part Number 1784-U2DHP
Temperature 0-55 degrees Celsius
Power dissipation 1.575 watts
Current 125 mA
Description Data Highway Plus (DH+) cable
Altitude 2000 meters
Enclosure IP 30
Communication rate 57.6 Kbps @ 3048 m (10,000 ft) 115.2 Kbps @ 1524 m (5000 ft) 230.4 Kbps @ 762 m (2500 ft)
LED indicators USB Power DH+ network
Compatible Processors PLC-5 processors except (Classic PLC-5 processors, such as PLC-5/10, PLC-5/12, PLC-5/15, and PLC-5/25); SLC 5/04 processors
Supply voltage 5.00V DC 5.25V DC, max
Power dissipation, max 1.575 W
Voltage 5 Volts DC

  

 

Information About 1784-U2DHP

The 1784-U2DHP provides seamless connectivity between modern PCs and legacy Allen-Bradley controllers operating on DH+ networks. It features a USB connector on one end and an 8-pin DIN connector on the other, with a total length of 3.05 m (USB cable 0.61 m, DH+ cable 2.44 m). It supports three DH+ communication rates: 57.6 kbps (maximum network length 3048 m), 115.2 kbps (1524 m), and 230.4 kbps (762 m). The device includes a 3-position switch for node address configuration and LED indicators for USB status, power, and DH+ network activity. It draws power from the USB port, consuming 125 mA at 5 VDC (1.575 W dissipation), with isolation voltage of 30 V. The adapter is enclosed in an IP30-rated housing and is designed for operation in environments from 0 to 55 °C. Typical applications include connecting programming workstations to PLC-5 processors (except classic PLC-5/10, 5/12, 5/15, and 5/25) and SLC 5/04 controllers, replacing older PCMCIA-based solutions such as the 1784-PCMK with PCM6 cables.

Key Features:

  • Design: Portable USB-to-DH+ communication adapter.
  • Compatibility: Supports PLC-5 (except classic models) and SLC 5/04 controllers.
  • Connectors: USB interface to PC; 8-pin DIN connector for DH+ network.
  • Cable Length: 3.05 m total (0.61 m USB, 2.44 m DH+).
  • Protocols: Data Highway Plus (DH+) using RS-485 convention.
  • Data Rates: 57.6 kbps (3048 m), 115.2 kbps (1524 m), 230.4 kbps (762 m).
  • Power Supply: 5 VDC from USB port, 125 mA current draw, 1.575 W dissipation.
  • Indicators: LED status for USB, power, and DH+ network activity.
  • Housing: IP30-rated enclosure, portable design.
  • Environmental Ratings: Operating 0…55 °C, storage –40…85 °C.

The 1784-U2DHP provides a reliable and portable interface for connecting modern computers to legacy DH+ networks, ensuring continued productivity in systems using PLC-5 and SLC controllers.

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