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Key Technical Specifications
| Parameter | Value |
| Catalog Number | 1784-PKTX Series B |
| Bus Interface | Universal PCI (3.3 V and 5 V signaling, 32-bit) |
| Supported Protocols | Data Highway Plus (DH+), DH-485, Universal Remote I/O (RIO) |
| Baud Rates (DH+) | 57.6 kbps, 115.2 kbps, 230.4 kbps |
| Number of Channels | 1 Channel (single 3-pin phoenix / 9-pin D-shell connector) |
| Interrupt Channels | Automatically assigned via PCI Plug and Play |
| Power Consumption | 3.0 W maximum (600 mA at +5 VDC) |
| Operating Temperature | 0 to 60°C (32 to 140°F) |
| Cable Compatibility | Belden 9463 (Blue Hose) for DH+/RIO; 1784-CP7 / 1784-CP14 |
| Software Support | RSLinx Classic (v2.x through v4.x on supported OS), FactoryTalk Linx |
Product Introduction & Supply Chain Strategy
The Allen-Bradley 1784-PKTX Series B is a high-performance PCI bus interface card engineered to bridge PC-based HMIs, SCADA workstations, and programming terminals directly to legacy Data Highway Plus (DH+), DH-485, and Universal Remote I/O (RIO) networks. Installing directly into a industrial computer’s PCI expansion slot, it enables fast data acquisition and online logic monitoring for PLC-5, SLC 5/04, and ControlLogix systems.
With Rockwell Automation having officially discontinued the 1784-PKTX series, maintaining operational connectivity between legacy network backbones and control room workstations poses severe supply chain friction. Sourcing verified New Surplus cards ensures flawless bus timing, intact gold edge connectors, and uncompromised internal transceivers. Securing genuine surplus stock prevents catastrophic SCADA blackouts while avoiding complex, multi-thousand-dollar network gateway overhauls.
1784-PKTX B
1784-PKTX B
Installation & Configuration Guide
Stage 1: Pre-Installation (Prep & Safety)
- Power Isolation: Shut down the host industrial PC completely and disconnect main AC power cables.
- ESD Safety: Put on a grounded wrist strap before removing the computer casing to safeguard sensitive PCI bus circuitry.
- Card Inspection & Configuration: Verify Series B board hardware jumpers if connecting to specialized DH-485 networks, and record card serial numbers for inventory records.
Stage 2: Removal
- Unplug the 3-pin Phoenix or 9-pin D-sub network connector from the rear mounting bracket of the failed card.
- Remove the retention screw holding the PCI bracket to the computer chassis frame.
- Gently rock the card back and forth while pulling upward to free the edge connector from the PCI expansion slot without stressing motherboard traces.
Stage 3: Installation (Clone & Seat)
- Align the 1784-PKTX Series B card’s edge connector with an available 32-bit PCI slot on the host computer motherboard.
- Press down firmly on both ends of the card until the gold contacts seat fully into the slot bus.
- Secure the metal retaining bracket with the chassis screw to ensure solid frame grounding.
- Reattach the Belden 9463 “Blue Hose” network cable (Clear to pin 1, Shield to pin 2, Blue to pin 3) to the external card terminal block.
Stage 4: Power-On & Testing
- Reconnect AC power to the PC, boot the operating system, and launch RSLinx Classic.
- Open Configure Drivers, select 1784-PKTX/PKTCS driver, and assign the appropriate PCI slot instance and DH+ node address (e.g., Station Octal 00–77).
- Open the RSLinx RSWho browsing window to verify active node detection across the DH+ trunk line.
Firmware/Software Versions & Upgrade Notes
- Driver Dependencies: The 1784-PKTX Series B relies on specific 32-bit PCI device drivers packaged within RSLinx Classic (v2.51 through v4.10).
- Operating System Constraints: Native 64-bit Windows operating systems (Windows 10/11 64-bit) do not support legacy 32-bit PCI PKTX drivers. For 64-bit OS migrations, use virtual machines with PCI pass-through or transition to USB-to-DH+ converters (like the 1784-U2DHP).
- Series A vs. Series B Differences: Series B hardware provides enhanced PCI Plug-and-Play resource arbitration, resolving IRQ conflict issues common when installing Series A cards on modern multi-core industrial motherboards.
Frequently Asked Questions (FAQ)
Is this 1784-PKTX Series B card guaranteed to be New Surplus?
Yes. This card is 100% Brand New Surplus stock in original OEM condition. It has never been installed in an active industrial PC chassis, repaired, or exposed to harsh plant floor environments. All gold edge connector contacts are pristine with zero insertion wear marks.
Why should I choose New Surplus over a refurbished 1784-PKTX card?
Refurbished PCI cards frequently suffer from degraded RS-485/DH+ driver chips, cracked solder joints from card flexure, and thermal stress from years of continuous server operation. Buying New Surplus eliminates intermittent communication drops and packet corruption, delivering full signal amplitude across long Blue Hose cable runs.
Will the 1784-PKTX Series B work in a PCI Express (PCIe) slot?
No. The 1784-PKTX B requires a standard 32-bit parallel PCI slot (3.3 V or 5 V universal keying). It cannot be physically inserted into a PCI Express (PCIe x1, x4, x16) slot without an active PCI-to-PCIe hardware adapter bridge.
How do I set the DH+ node address on the 1784-PKTX B?
Unlike older ISA cards with physical DIP switches, the 1784-PKTX Series B node address, baud rate (57.6k, 115.2k, or 230.4k), and network protocol are configured entirely via software inside the RSLinx driver configuration panel.
What warranty is included with this card?
We provide a full 1-year replacement warranty on this 1784-PKTX Series B New Surplus communication card. Each unit passes comprehensive physical pin checks, bus interface validation, and anti-static packaging procedures prior to shipment.
