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Allen-Bradley 1784-KTX PLC-5 16-bit communication interface card

Allen-Bradley

Allen-Bradley 1784-KTX PLC-5 16-Bit DH+ DH-485 Communication Interface Card

SKU CH-6J77-Z758A MPN 1784-KTX

Single-channel 16-bit DH+ or DH-485 interface card connects PLC-5 systems to industrial networks

  • Connect PLC-5 networks with 16-bit DH+ interface
  • Integrate legacy DH-485 devices via single channel
  • Deploy new condition hardware for reliable automation
  • Standard 1784 form factor fits existing slots
  • Allen-Bradley quality ensures industrial-grade communication performance

Purpose and Audience

The Allen-Bradley 1784-KTX is a 16-bit communication interface card designed for PLC-5 systems. It provides a single channel configurable for either DH+ or DH-485 industrial networks. This card targets engineers maintaining or expanding legacy automation infrastructure.

Fit and Alternatives

The 1784-KTX suits technicians who need to connect a desktop computer to a DH+ or DH-485 link for programming or data acquisition. It does not serve installations that require simultaneous dual-network access or modern Ethernet-based industrial protocols.

Deciding Specification

The card operates exclusively as a 16-bit ISA expansion board. Verify that the host computer has a free 16-bit ISA slot before purchase, as no other bus interface is supported by this model.

How it compares

Measured against everything we stock in A/V Controllers & System Processors, at today’s prices. Recalculated every night.

Price $425.99
Cheaper than about 91% of the 18 comparable items (median $756.99).

Specifications

No published specifications for this item yet.

Questions about this item

How is the 1784-KTX card installed in a system, and what step is commonly missed?

Insert the card into a compatible slot, then configure the DH+ or DH-485 channel in the PLC-5 software; the step often missed is setting the correct baud rate and node address for the chosen network.

What maintenance or replacement will the 1784-KTX need over time?

The card has no moving parts or batteries; typical upkeep is limited to checking cable connections and cleaning dust from the connector contacts during scheduled system shutdowns.

What limit appears first when the 1784-KTX runs under sustained heavy communication load?

The single 16-bit channel bandwidth becomes the bottleneck, capping throughput on either the DH+ or DH-485 network before the card itself overheats or faults.

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