Allen-Bradley 1784-PKTX
Allen-Bradley 1784-PKTX
Allen-Bradley 1784-PKTX/B
Allen-Bradley 1784-PKTX
Allen-Bradley 1784-PKTX
Allen-Bradley 1784-PKTX/B
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1784-PKTX/B

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The 1784-PKTX/B is a single‑channel PCI communication card that connects a PC to DH+, DH‑485, and Remote I/O networks, delivering high performance for industrial automation.
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Technical specifications for 1784-PKTX/B

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1784-PKTX/B
  • Product Family:
    PLC-5
  • Product Type:
    Communication Card
  • Stock:
    1
  • Card Type:
    Single channel, selective support
  • Supported Networks:
    DH+, DH‑485, Remote I/O (RIO)
  • Physical Ports:
    CH1A (3‑pin Phoenix): DH+ or RIO CH1C (6‑pin Phoenix): DH‑485
  • Max Line Length (DH+):
    10,000 ft (3048 m) @ 57.6 kbit/s
  • Max Line Length (RIO):
    10,000 ft @ 57.6 kbit/s
  • Max Line Length (DH‑485):
    4,000 ft (1219 m) @ 19.2 kbit/s
  • Bus Communication:
    Local PCI
  • LEDs:
    1 diagnostic/status per channel
  • Max Cards per System:
    4 (jumper‑selectable)
  • Operating System:
    Windows 95 / NT (others need custom driver)
  • Power Dissipation:
    Not listed (PKTXD: 800mA @ 5Vdc, 4.0W)
  • Operational Temp:
    0 to 60°C (32 to 140°F)
  • Weight:
    0.1 kg
  • Estimated shipping dimensions:
    2x17.8x12.6cm
  • Tariff Code:
    8538900000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Performance and Efficiency Application Scenarios

Features:

  • One PCI card supports DH+, DH‑485, or Remote I/O (selectable), eliminating the need for separate cards.
  • Automatic base memory address and interrupt request (IRQ) assignment for easy installation.
  • On‑board LEDs per channel, included diagnostic software, and support for standard Allen‑Bradley cables
The 1784-PKTX/B replaces multiple single‑protocol interface cards with one PCI card. You can configure its single channel to operate on DH+, DH‑485, or Remote I/O networks without changing hardware. This is ideal for plants that have a mix of legacy Allen‑Bradley PLCs, such as SLC 5/04 (DH+), SLC family (DH‑485), or classic controllers on RIO.

The 1784-PKTX/B leverages local PCI bus technology to automatically assign base memory addresses and interrupt requests (IRQs). This eliminates manual jumper settings or software conflicts common with older ISA cards. When installed in a Windows 95 or Windows NT PC, the operating system detects the card and, together with RSLinx software, configures the communication parameters.

The 1784-PKTX/B includes on‑board LEDs (one per channel) that provide immediate visual status of network activity and card health. If a connection fails, technicians can quickly see if the card is powered, if the network is idle, or if a collision occurred. Additionally, the card comes with diagnostic software that performs comprehensive tests on the PCI interface, dual‑port memory, and host PC.

The 1784-PKTX/B Allen-Bradley Communication Card may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

Allen-Bradley 1784-PKTX/B Communication Card Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Allen-Bradley 1784-PKTX/B Communication Card Specs

General

  • Manufacturer Allen-Bradley
  • Model 1784-PKTX/B
  • Condition New Original ready stock
  • Product Family 1784-PKTXD,1784-PKTS,1784-PCMK,1784-PCC
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Legacy System Maintenance and Integration: Extends the lifespan of PLC-5 and SLC 500 systems by connecting modern PCs to legacy Data Highway Plus (DH+) or Remote I/O (RIO) networks.
  • Industrial Control and Monitoring: Utilizes its I/O scanner function to support soft-control or embedded control engines for real-time data acquisition and equipment monitoring.
  • PLC Programming and Configuration: Engineers can use this card to run RSLogix 5 or RSLogix 500 software on a PC to upload, download, and debug field controllers online.
  • Multi-protocol Support: Single-channel selectable support for DH+, DH-485, or Universal Remote I/O (RIO), reducing spare parts storage types.
  • DH+/RIO: Up to 230.4 kbps at a distance of approximately 762 meters (2,500 feet).
  • PCI Compatibility: Universal card design conforming to the PCI 2.3 specification, supporting 3.3V or 5V signal environments, and can be inserted into 32-bit or 64-bit PCI slots (without using 64-bit expansion functionality).
  • Less-Store Automation Upgrades: Integrate the legacy 1771 I/O framework into a modern PC-based automation architecture without replacing existing RIO cabling.
  • Diagnostic and Maintenance Workstations: Portable or desktop maintenance stations utilize onboard LED diagnostic indicators to quickly diagnose network connectivity status and hardware faults.
  • Technical Limitations:This card natively supports older operating systems such as Windows XP/7 (32-bit); while there is a compatibility record for Windows 10/11, specific driver support or a virtualization environment is usually required.
Description
The 1784-PKTX/B provides a single channel that selectively supports DH+, DH‑485, or Remote I/O networks. It features two physical communication ports associated with one protocol channel, giving flexibility to connect to different Allen‑Bradley networks. The 1784-PKTX leverages PCI and plug‑and‑play technology for automatic address and IRQ assignment.

With the 1784-PKTX/B, a PC can function as a Man/Machine Interface (MMI) on DH+ or DH‑485, or as a scanner on Remote I/O. It works under Windows 95 and Windows NT using RSLinx software. The 1784-PKTX reduces the number of different interface cards needed in a plant, as one card supports three network types.

A key application of the 1784-PKTX/B is connecting a PC‑based controller to legacy Allen‑Bradley PLCs (e.g., SLC 5/04) without changing existing network wiring. On‑board LEDs provide diagnostics for each channel. The card also includes diagnostic software for testing the host PC and dual‑port memory interfaces.

The 1784-PKTX/B solves the specific pain point of needing multiple, single‑protocol cards for PC‑to‑PLC communication. It replaces separate DH+, DH‑485, and RIO cards with one PCI card, saving slots, reducing spare parts inventory, and simplifying system architecture. Maximum line lengths reach 10,000 ft at 57.6 kbit/s on DH+.
Revisions

Revision Part #

Also known as

1784-PKTX Ser A
1784-PKTX/A, Series A, Rev A
1784-PKTX Ser B
1784-PKTX/B, Series B, Rev B
Alternative Names
1784-PKTXD 1784-PKTS 1784-PCMK 1784-PCC
Technical notes
The Allen-Bradley 1784-PKTX/B communication card is a B-series card that can be installed in a standard PC expansion slot, conforms to the PCI bus specification (version 2.3), and features dual 3.3V and 5V signal output capabilities, seamlessly adapting to 32-bit and 64-bit PCI slots.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which operating systems support the 1784-PKTX/B?
Native drivers are provided for Windows 95 and Windows NT. For MS‑DOS, Windows 3.x, or other OS, you must develop your own driver using 1784‑DP5 specifications.
What is the maximum cable length on DH+ with the 1784-PKTX/B?
At 57.6 kbit/s, the 1784-PKTX/B supports up to 10,000 ft (3048 m). At 230.4 kbit/s, length reduces to 2,500 ft (762 m). Use Belden #9463 cable.
How do I verify the 1784-PKTX/B is working correctly?
Use the included diagnostic software to test the card, host PC, and dual‑port memory. On‑board LEDs per channel also show network activity and status.
Can I install more than one 1784-PKTX/B in the same PC?
Yes, you can install up to four 1784-PKTX/B cards per system. The maximum is set by a jumper on each card. This allows connection to many different networks from one PC.

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