Allen Bradley 1784-KTX Communication Interface Card

Applications

• PC-based communication interface for Allen-Bradley PLC-5™, SLC 5/04™, PLC-3™, and PLC-2™ systems.

• Data Highway Plus (DH+) network connectivity for legacy industrial automation systems.

• DH-485 communication for SLC-series controllers in distributed control environments.

• Remote I/O scanning and diagnostics in legacy Rockwell Automation architectures.

• Industrial system programming, monitoring, and troubleshooting from engineering workstations.

• Plant-floor data acquisition and controller-level diagnostics in older automation networks.

• Legacy machine retrofits requiring PC-to-PLC communication bridging.

• Industrial training and test environments for DH+/DH-485 protocol systems.

Key Advantages

• Enables direct PC connection to legacy DH+ and DH-485 industrial networks.

• Supports multiple Rockwell controller families in one communication interface.

• Provides remote I/O scanning capability for system-level diagnostics and monitoring.

• Improves engineering access to legacy PLC systems without replacing core hardware.

• Supports stable data exchange in deterministic industrial network environments.

• Widely used for maintenance, commissioning, and troubleshooting of installed base systems.

• Compatible with RSLinx Classic and legacy Rockwell communication software.

• Designed for reliable operation in industrial workstation environments.

Technical FAQs

Q1: What is the main function of the 1784-KTX card?
A: It is a PC ISA communication interface card that allows computers to connect to Allen-Bradley DH+ and DH-485 networks.

Q2: What networks does it support?
A: It supports Data Highway Plus (DH+) and DH-485 industrial communication protocols.

Q3: Which controllers can it communicate with?
A: It can communicate with PLC-5, SLC 5/04, PLC-3, and certain SLC 5/01–5/03 systems (via configuration).

Q4: Does it support Ethernet/IP?
A: No, it is a legacy card designed for serial/fieldbus-style networks like DH+ and DH-485.

Q5: Is it still manufactured?
A: No, it is a discontinued legacy product, mainly used in existing installed systems.

Q6: What type of PC slot does it require?
A: It requires a 16-bit ISA or EISA expansion slot.

Q7: What software is typically used with it?
A: Commonly used with RSLinx Classic and older Rockwell communication tools.

Q8: Is it used for real-time control?
A: It is mainly used for communication, programming, monitoring, and diagnostics—not direct control execution.

Q9: Can it act as a remote I/O scanner?
A: Yes, it can function as a remote I/O scanner in DH+ networks.

Q10: What is the main benefit of this card?
A: It enables engineering access and communication with legacy Allen-Bradley PLC systems through a PC interface.