Product Overview
The Allen-Bradley 1784-PKTXD 2 Channel communication card is a network interface card designed to connect PCs to PLC controllers over Data Highway Plus (DH+) and DH-485 networks. It supports DH+ and RIO scanner functions, making it a versatile tool for industrial data acquisition and control. This card is part of the PLC-5 family and is engineered for reliability in demanding automation environments.
Key Features & Benefits
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2 Channel Operation: The 1784-PKTXD supports dual-channel functionality for enhanced communication flexibility.
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PCI Bus Interface: Plug-and-play integration into standard PCI slots, simplifying installation.
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Universal PCI Card: Compatible with both 3.3-Volt and 5-Volt signaling, ensuring broad system compatibility.
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DH+, RIO Scanner, and DH-485 Support: Enables seamless connectivity with PLC-5, PLC-5/250, and SLC 5/04 processors.
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I/O Scanner Functionality: Facilitates efficient data exchange between the host PC and field devices.
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Soft Control and Embedded Control: Works with both control architectures for flexible deployment.
Technical Specifications
| Specification |
Details |
| Brand |
Allen-Bradley / Rockwell Automation |
| Series |
PLC 5 |
| Part Number |
1784-PKTXD |
| Product Type |
2 Channel |
| Host Interface |
PCI Bus |
| Network Support |
DH+, RIO Scanner, DH-485 |
| Signaling |
3.3-Volt or 5-Volt |
| Universal PCI Card |
Supported as standard |
| Controls/Indicators |
Operating Network Status |
Applications
The 1784-PKTXD 2 Channel communication card excels in industrial settings where reliable PC-to-PLC communication is critical. Typical applications include:
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Data Acquisition: Collecting real-time data from PLC-5 or SLC processors for monitoring and analysis.
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Programming and Configuration: Uploading and downloading programs, configuring parameters, and performing diagnostics through a desktop computer.
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Network Monitoring: Supervising DH+ and DH-485 networks, managing nodes, and troubleshooting communication issues.
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Soft Control Systems: Integrating with soft control or embedded control engines for advanced automation tasks.
Installation & Setup
To install the Allen-Bradley 1784-PKTXD, power down the host PC and insert the card into an available PCI bus slot. Ensure the slot is keyed for either 3.3-Volt or 5-Volt signaling, as the card supports both. After powering on, the PCI BIOS will assign a base memory address automatically; the card requires up to 4 KB of memory for its dual-port interface. No additional configuration is needed for the PCI bus, but verify that the network settings (DH+ or DH-485) are correctly configured in your software.
Maintenance & Reliability
Routine inspection of the 1784-PKTXD is minimal. Periodically check the card's seating in the PCI slot and ensure the host PC's ventilation is adequate to prevent overheating. The operating network status indicator provides a quick visual check of communication health. As with any industrial component, keeping the card free from dust and moisture extends its service life and maintains reliable performance.
Compatibility & Integration
The 1784-PKTXD is designed for use with Allen-Bradley PLC-5, PLC-5/250, and SLC 5/04 processors over DH+ and DH-485 networks. It supports both soft control and embedded control environments, making it a flexible choice for legacy and modern systems. The universal PCI interface ensures compatibility with most desktop computers.
Buying Guide
When selecting the 1784-PKTXD, verify that your system has an available PCI slot and that the operating system supports universal PCI cards. Confirm the required signaling voltage (3.3V or 5V) matches your motherboard. As a reliable supplier, PLC Source PRO offers genuine Allen-Bradley 1784-PKTXD cards with fast shipping and expert support.