Allen-Bradley 1784-PKTX/B PCI Bus Communication Card – Data Highway Plus Series
Imagine a mid-shift production halt on an automotive assembly line: the SCADA workstation loses communication with the PLC network, operators go blind, and every minute of downtime costs thousands. In legacy Rockwell Automation environments built on Data Highway Plus (DH+), DH-485, or Remote I/O (RIO) backbones, the 1784-PKTX/B is the single hardware bridge between the PC and the control network. Without it, there is no path for programming, diagnostics, or real-time data acquisition — the plant simply stops.
The Allen-Bradley 1784-PKTX/B is the Series B revision of Rockwell Automation’s flagship PCI-bus communication card for legacy DH+/DH-485/RIO networks. It occupies a standard 32-bit PCI slot and simultaneously supports all three legacy network protocols, making it the preferred interface card for engineers maintaining SLC 500, PLC-5, and MicroLogix installations worldwide. Tens of thousands of units remain in active service across automotive, oil & gas, food & beverage, and utilities sectors — a testament to the platform’s reliability and the continued demand for genuine replacement hardware.
Technical Specifications
| Part Number | 1784-PKTX/B |
| Series | B |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Form Factor | PCI Bus Card (32-bit, 5 V / 3.3 V universal) |
| Supported Networks | Data Highway Plus (DH+), DH-485, Remote I/O (RIO) |
| Communication Ports | 1 × DH+ / DH-485 / RIO (DB-9 connector via breakout cable) |
| DH+ Baud Rates | 57.6 kbps, 115.2 kbps, 230.4 kbps |
| DH-485 Baud Rates | 1.2 kbps, 2.4 kbps, 9.6 kbps, 19.2 kbps |
| RIO Baud Rates | 57.6 kbps, 115.2 kbps, 230.4 kbps |
| Operating System Support | Windows XP / Vista / 7 / 10 (32-bit & 64-bit, driver-dependent) |
| Software Compatibility | RSLinx Classic, RSLogix 500, RSLogix 5, FactoryTalk |
| Weight | 200 g |
| Operating Temperature | 0 °C to 60 °C |
| Humidity | 5% to 95% non-condensing |
Key Features & Benefits
- Triple-protocol support — one card handles DH+, DH-485, and RIO, eliminating the need for multiple interface cards in mixed-network environments.
- Series B reliability — hardware revision B incorporates improved EMI shielding and enhanced driver stability over the original Series A.
- RSLinx Classic native driver — plug-and-play recognition in Rockwell’s standard communication middleware; no third-party middleware required.
- PCI universal slot — compatible with both 5 V and 3.3 V PCI slots, extending usable life across a wide range of industrial PCs and workstations.
- Simultaneous multi-node access — supports concurrent connections to multiple PLC nodes on the same DH+ segment, critical for multi-drop programming and monitoring.
- Long-term availability — sourced from verified channels to support legacy system maintenance where OEM supply has been discontinued.
Industry & Equipment Applications
- Automotive Manufacturing — body-shop weld controllers, paint-line PLCs, and assembly-line SLC 500 systems communicating over DH+ backbones.
- Oil & Gas — wellhead and pipeline SCADA workstations interfacing with PLC-5 controllers via DH+ for real-time process monitoring.
- Food & Beverage — batch processing and filling-line MicroLogix networks using DH-485 for low-cost, multi-drop communication.
- Utilities & Water Treatment — pump-station and WWTP control systems with Remote I/O racks requiring PC-based HMI connectivity.
- Metals & Mining — rolling-mill and conveyor PLC-5 installations where DH+ remains the installed communication standard.
- Pharmaceutical — validated legacy control systems where hardware change control mandates exact-match replacement parts.
System Integration & Compatible Parts
The 1784-PKTX/B is designed to integrate directly into existing Rockwell Automation control architectures. Commonly paired components include:
- Allen-Bradley SLC 500 processors (1747-L20, 1747-L30, 1747-L40, 1747-L553)
- Allen-Bradley PLC-5 processors (1785-L20, 1785-L40, 1785-L80)
- Allen-Bradley MicroLogix 1000 / 1100 / 1400 (DH-485 port)
- 1784-PKTX breakout cable (1784-CP) for DB-9 to terminal-block field wiring
- RSLinx Classic (v2.x – v4.x) communication software
- FactoryTalk View SE / ME for HMI integration
- 1784-PCMK (PCMCIA alternative for laptop-based programming)
Our Quality Assurance Process
Every 1784-PKTX/B unit shipped from Konmask.com passes through a documented multi-stage inspection process:
- Visual inspection — PCB, connectors, and labeling checked against OEM reference standards; counterfeit markers screened.
- Functional bench test — card installed in a test PC, RSLinx Classic driver loaded, and DH+ loopback communication verified.
- Firmware / revision verification — Series B hardware revision confirmed against Rockwell Automation part-number matrix.
- ESD-safe packaging — shipped in anti-static bags with foam cushioning inside double-wall cartons.
- Traceability — each unit logged with inspection date, technician ID, and test result prior to dispatch.
How to Order
- Submit an enquiry via the Contact / RFQ form on this page or email support@konmask.com.
- Include your required quantity, delivery timeline, and destination country.
- Receive a formal quotation with lead time and shipping options within 1 business day.
- Confirm the order; we issue a proforma invoice and arrange payment via T/T, PayPal, or trade-finance terms.
- Unit ships with full documentation (test report, packing list, commercial invoice) for customs clearance.
📞 +0086 19859288691 | ✉ support@konmask.com
Why Choose Konmask.com?
- Specialist focus — we stock and source industrial automation components exclusively; no consumer electronics, no generalist catalogue.
- Verified supply chain — parts sourced from authorised distributors, OEM surplus, and certified refurbishers; every unit traceable.
- Global export experience — we ship to 60+ countries with full export documentation, HS code guidance, and DDP/DAP Incoterms support.
- Technical pre-sales support — our engineers confirm compatibility before you commit to a purchase.
- Fast response — RFQ responses within 24 hours; urgent orders expedited same business day where stock permits.
Frequently Asked Questions
Q: Is the 1784-PKTX/B compatible with Windows 10 64-bit?
A: Compatibility depends on the RSLinx Classic driver version. RSLinx Classic v3.90 and later include 64-bit Windows 10 drivers for the 1784-PKTX. We recommend confirming your RSLinx version before installation.
Q: What is the difference between 1784-PKTX and 1784-PKTX/B?
A: The /B suffix denotes Series B — a hardware revision with improved EMI performance and updated firmware. Series B is the current shipping revision and is backward-compatible with all Series A installations.
Q: Can this card communicate with ControlLogix over DH+?
A: ControlLogix uses EtherNet/IP or ControlNet natively. However, a 1756-DHRIO bridge module in the ControlLogix chassis can extend DH+ connectivity, and the 1784-PKTX/B on the PC side remains the standard interface for that topology.
Q: Do you provide a warranty?
A: Yes. All units carry a 90-day functional warranty from the date of shipment. Extended warranty options are available on request.
Q: Can you supply a Certificate of Conformance or test report?
A: Yes. A functional test report and Certificate of Conformance are included with every shipment at no additional charge.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
