Product Summary
The Allen-Bradley 1784-U2DHP is an industrial-grade USB to Data Highway Plus cable. This device lets you connect a laptop directly to a DH+ network. It supports PLC-5 and SLC 5/04 processors with ease. The cable draws power from the USB connection only. It dissipates just 1.575 Watts of power as heat. This portable tool replaces older 1784-PCMK and PCM6 hardware.
Product Procurement & Buyer Guide
Procurement teams need a reliable bridge for legacy DH+ networks. The 1784-U2DHP solves this challenge with modern USB connectivity. It supports three communication rates for flexible deployment. You can select 57.6 Kbps for distances up to 3048 meters. Choose 115.2 Kbps for lengths up to 1524 meters. Use 230.4 Kbps for shorter runs up to 762 meters.
This cable works with most PLC-5 processors except classic models. It fully supports SLC 5/04 processors without additional hardware. The device requires a 5.00V DC supply from a USB port. The maximum supply voltage is 5.25V DC for safe operation. It draws only 125 milliamps of current during normal use. The power dissipation remains at a low 1.575 Watts maximum.
The 1784-U2DHP operates in temperatures from 0 to 55 degrees Celsius. It works at altitudes up to 2000 meters without any derating. The enclosure carries an IP 30 rating for basic protection. You can use this device for Overvoltage Category II applications. The power source must comply with SELV and PELV standards.
Step-by-Step Installation Guide
Start by installing the correct driver on your computer. The driver creates a unique COM port for the cable. Connect the USB end to your laptop or workstation. The USB cable length measures 0.61 meters for easy reach. Attach the 8-pin DIN connector to the DH+ network port. The DIN cable length is 2.44 meters for flexible positioning.
The node address sets automatically on the first connection. You do not need to configure the address manually. A 3-position switch lets you change the communication rate. Always disconnect the USB cable before adjusting this switch. The LED indicators show power, USB, and DH+ network status. Red and green blinks indicate network activity or errors.
This device does not require DIN rail mounting or brackets. It is a highly portable cable for mobile use. The isolation voltage is 30 Volts for safe operation. Ensure the environment stays within 0 to 55 degrees Celsius. The cable works best with a clean, dry installation area.
Logistics & Standard Packaging Details
- One Allen-Bradley 1784-U2DHP USB to DH+ cable
- USB connector cable with 0.61 meter length
- 8-pin DIN connector cable with 2.44 meter length
- Communication rate selector switch included
- LED status indicators for diagnostics
- Express delivery shipping is available via FedEx, UPS, and DHL
