Product Summary
The Allen-Bradley 1784-U2DHP is a durable USB to Data Highway Plus cable for industrial environments. This device allows any laptop or computer to connect directly to a DH+ network for configuration and programming tasks. It replaces older communication adapters like the 1784-PCMK card efficiently.
Why Procurement Pros Choose the 1784-U2DHP
Procurement managers need a reliable bridge between modern workstations and legacy automation systems. The 1784-U2DHP solves this directly by turning a simple USB port into a DH+ network gateway. You eliminate the need for bulky internal cards.
Engineers appreciate how this cable supports vital legacy processors without complex setup steps. It connects seamlessly to PLC-5 controllers and SLC 5/04 processors. The device excludes only a few classic PLC-5 models like the /10 or /15.
This cable draws its power straight from the USB connection, requiring just 5 Volts DC. Its maximum power dissipation remains a low 1.575 Watts, making it very energy efficient. The unit demands a supply current of only 125 milliamps.
You gain three selectable communication rates for network flexibility. Choose 57.6 Kbps for distances up to 3048 meters. Select 115.2 Kbps for lengths up to 1524 meters, or 230.4 Kbps for up to 762 meters.
The durable design operates in temperatures ranging from 0 to 55 degrees Celsius. It suits Overvoltage Category II applications at altitudes up to 2000 meters. The IP30-rated enclosure protects the electronics from small solid objects.
Step-by-Step Installation Guide
The 1784-U2DHP requires no complicated mounting or DIN rail hardware because it is highly portable. First, install the correct driver onto your computer before connecting the cable. The cable will then create a unique COM port automatically.
Connect the USB end of the cable into an open port on your workstation. The USB cable section measures 0.61 meters in length. Connect the 8-pin DIN connector to the DH+ network port on the processor.
The node address sets itself automatically when you first plug in the cable. You can use the 3-position switch to configure the node address if needed. Always disconnect the cable from the USB port before you change this setting.
Three LED indicators provide clear status feedback for users. Watch the USB, Power, and DH+ network lights during operation. These LEDs blink red and green to indicate power, network activity, or node duplication issues.
The cable must always use a power source compliant with SELV and PELV standards. Ensure the ambient temperature stays within the stated operating range. The device dissipates heat efficiently at just 1.575 Watts.
Logistics & Standard Packaging Details
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