Overview
The Allen-Bradley 1784-PKTX is a PCI (Peripheral Component Interconnect) bus communication interface card that bridges Windows-based personal computers and Allen-Bradley legacy industrial networks. This card supports PCI bus version 2.3 and allows the host computer to connect to a Data Highway Plus (DH+), Remote I/O (RIO) or DH-485 communication network. As a used surplus unit, it offers cost-effective connectivity for maintaining and programming existing PLC-5 automation systems.
Key Features
- Provides Data highway Plus (DH+) / Remote I/O (RIO) Channel 1A and DH485 Channel 1B ports
- Protected by a conformal coating from liquids and chemicals and does not require an external power source in order to operate
- Single LED status/Diagnostic indicator per channel, and BUS communication meets Local PCI compliance
- Up to 4 PCI cards can be supported by 1 PLC 5 system
- Factory-grade reliability suitable for factory-floor automation applications
Technical Specifications
- Bus Architecture: PCI 2.3 compliant
- Form Factor: Full-height PCI card
- Channels: 1A (DH+/RIO—3-pin Phoenix), 1C (DH-485—6-pin Phoenix)
- Supported Protocols: Data Highway Plus (DH+), Remote I/O (RIO), DH-485
- DH+ and RIO maximum distance: 10,000 ft. (3048 m) @ 57.6K bit/s; 5,000 ft. (1,524 m) @ 115.2K bits/s; 2,500 ft. (762 m) @ 230.4K bits/s
- DH-485 maximum distance: 4,000 ft. (1219 m) @ 1200, 2400, 4800, 9600 or 19,200 bits/s
- Operating temperature: 0 to 60 degrees Celsius (32 to 140 degrees Fahrenheit) at 5 to 95% relative humidity without condensation
- Operational shock: 30G; vibration: 2G at 10 to 500 Hertz
- Dimensions: 115 mm × 317 mm × 160 mm (4.5″ × 12.4″ × 6.3″)
- Weight: 0.84 lb
- Power Supply: PCI Bus Slot (no external supply required)
- Mounting: PCI Computer Slot
- Certifications: C-TICK, CE, CUL, GOST, KC, UL
Typical Applications
This card may be used to interface with Programmable Logic Controllers (PLC) for implementing process visualization. Common applications include:
- Legacy PLC-5 programming and maintenance on DH+ networks
- SLC (PLC-5/01, /02, /03) remote I/O and DH-485 communication
- Industrial process monitoring and diagnostics via Windows-based HMI software
- Retrofitting older control systems with modern diagnostic tools
- Data collection and archival from legacy factory automation networks
Compatibility & Replacements
Compatible With
- PLC-5, PLC-5/250, SLC 5/04, and SLC 5/01, SLC 5/02, SLC5/03 processors (only via 1785-KA5)
- Data Highway Plus (DH+) networks
- Remote I/O (RIO) scanner networks
- DH-485 serial communication networks
- Windows-based personal computers with available PCI slots
Replaces / Drop-In Replacement For
The 1784-PKTX is a direct replacement for legacy PLC-5 networking environments. Rockwell Automation announced that as of March 31, 2022, the Data Highway Plus PC Card was discontinued and no longer available for sale, with Engineering Replacement category recommended. For new system designs, verify modern alternatives with your system integrator.
Works With
- RSLinx Classic (driver-based connectivity)
- RSLogix 5 / RSLogix 500 programming software
- Allen-Bradley 1771-WN wiring card for simplified connections
- CP12 and CP14 Phoenix-style cable assemblies (with termination resistors)
- PCI-based Windows operating systems (32-bit recommended)
