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1784-KT

Allen-Bradley 1784-KT Communication Interface Module

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  • Manufacturer: Allen-Bradley

  • Product No.: 1784-KT

  • Product Type: Communication Interface Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 340g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Overview

The ALLEN-BRADLEY 1784-KT is a specialized Communication Interface Module designed to facilitate high-speed data exchange between host computers and Allen-Bradley industrial controllers. Supporting Data Highway Plus (DH+), PLC-2, and PLC-3 protocols, this module acts as a vital bridge for legacy system integration and real-time monitoring. Engineered for precision, it is a lightweight component with a net weight of only 0.34 kg, making it a low-profile yet powerful addition to industrial communication networks.

Technical Configuration

Versatile Communication Protocols

The 1784-KT supports both asynchronous and synchronous communication modes. For PLC-2 and PLC-3 systems, it handles asynchronous baud rates of 9600 and 19.2 Kbps. When operating on a Data Highway Plus network, it achieves a synchronous transfer rate of 57.6 Kbps. This versatility allows for short-range local connections (up to 10 ft) or extensive long-distance industrial networking.

Long-Distance Networking & Reliability

One of the primary advantages of the 1784-KT is its ability to maintain signal integrity over vast distances. When configured for Data Highway Plus with PLC-3 or PLC-5 controllers, the module supports communication cable lengths of up to 10,000 feet (3,050 meters). It operates on a dual-voltage DC power requirement, drawing only 2W at +5V DC and less than 0.5W at 12V DC, ensuring minimal thermal impact on the host system.

Technical Specifications

Technical Parameter Detailed Rating
Power Requirement (5V) +5V DC @ 0.4A (2W)
Power Requirement (12V) 12V DC @ 0.04A (0.48W)
DH+ Baud Rate 57.6 Kbps (Synchronous)
Max Distance (DH+) 10,000 ft (3,050 meters)
Operating Temp 0°C to 55°C (32°F to 130°F)
Product Weight 0.34 kg (0.75 lbs)

Environmental & Operational Stability

The 1784-KT is built to withstand standard industrial floor conditions, with an operating humidity range of 5% to 95% (non-condensing). Its thermal design allows for continuous operation in temperatures up to 55°C (130°F). Because of its legacy compatibility, it remains a critical component for maintaining older PLC-2 and PLC-3 installations while providing a pathway to more modern PLC-5 Data Highway Plus networks.

Engineering Advantages

  • Legacy Connectivity: Provides rare support for PLC-2 and PLC-3 asynchronous communication, preserving existing infrastructure.
  • High Power Efficiency: Consumes less than 2.5W of total power, reducing the electrical load on the host computer or interface rack.
  • Proven DH+ Performance: Industry-standard 57.6 Kbps synchronous speed ensures reliable data packets for complex automation tasks.
  • Extended Reach: Capable of spanning over 3 kilometers of cable without the need for repeaters on DH+ networks.

Technical FAQs

Q1: What is the maximum distance for a PLC-2 connection?
A1: For PLC-2 and PLC-3 asynchronous connections, the maximum cable distance is limited to 10 feet (3 meters).

Q2: Does the 1784-KT support PLC-5?
A2: Yes, it supports PLC-5 controllers via the Data Highway Plus (DH+) network protocol at 57.6 Kbps.

Q3: Is any external power supply required?
A3: No, the module typically draws its +5V and 12V DC power directly from the host interface slot it is installed in.

🏷️ Tags: Communication Interface Module

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