Allen Bradley 1784-KTXD Communication Interface Card

Product Introduction

The Allen-Bradley 1784-KTXD Communication Interface Card is an industrial PC interface module designed to provide reliable connectivity between a computer and Allen-Bradley PLC networks. Supporting multiple legacy communication protocols such as DH+, DH-485, and Remote I/O (RIO), it enables direct interaction with PLC systems for programming, monitoring, and diagnostics.

This card features a dual-channel design, allowing simultaneous communication across different networks or devices. It also functions as a Remote I/O scanner, enabling the host PC to actively control and monitor distributed I/O systems in real time.

Built on a 16-bit ISA/EISA architecture, the 1784-KTXD is intended for industrial computers used in legacy automation environments. Its compact, open-style design ensures easy installation and stable performance in control cabinets and industrial workstations.

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Product Specifications

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Applications

• PLC programming and diagnostics

Enables direct PC communication with PLC systems for configuration, monitoring, and troubleshooting.

• Remote I/O control systems

Acts as a scanner to manage distributed I/O racks in real-time industrial applications.

• Industrial network integration

Supports communication across DH+, DH-485, and RIO networks.

• Legacy system maintenance

Provides essential connectivity for servicing and upgrading older Allen-Bradley systems.

• Data acquisition and monitoring

Facilitates continuous data exchange between PC systems and industrial controllers.

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Advantages

• Multi-protocol support

Compatible with DH+, DH-485, and RIO for broad legacy system integration.

• Dual-channel capability

Allows simultaneous communication with multiple networks or devices.

• Remote I/O scanner functionality

Enables the PC to function as a controller for distributed I/O systems.

• Stable industrial communication

Designed for reliable operation in noisy and demanding environments.

• Compact and lightweight design

Easy to install in industrial PCs with limited space availability.

• Efficient system maintenance tool

Simplifies diagnostics and troubleshooting of legacy automation systems.

FAQ

1. What is the main function of the 1784-KTXD card?
   It enables communication between a PC and PLC networks while also acting as a Remote I/O scanner.
2. What communication protocols are supported?
   It supports DH+, DH-485, and Remote I/O (RIO) protocols.
3. What does dual-channel communication mean?
   It allows the card to communicate with two networks or devices simultaneously, improving flexibility.
4. What is the advantage of Remote I/O scanner capability?
   It allows the PC to directly control and monitor distributed I/O modules in real time.
5. Which PLC systems are compatible with this card?
   It is compatible with PLC-2, PLC-3, and other legacy Allen-Bradley systems.
6. Is this card suitable for modern Ethernet networks?
   No, it is designed for legacy industrial communication protocols rather than Ethernet.
7. What type of computer interface is required?
   It requires a PC with an ISA or EISA expansion slot.
8. What are common installation issues?
   Improper slot installation, driver configuration errors, and incorrect network wiring.
9. Can it be used for system diagnostics?
   Yes, it is widely used for monitoring, troubleshooting, and maintaining industrial networks.
10. Is it still used in modern systems?
    It is mainly used for maintaining and supporting legacy automation systems.

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