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Allen-Bradley 1784-KT Communications Interface Card

1. Product Description

The 1784-KT is an ISA bus communication interface card designed for Allen-Bradley PLC systems, enabling direct connection between personal computers/workstations and Allen-Bradley processors/controllers via Data Highway Plus (DH+) networks. It eliminates RS-232 bottlenecks, improving response times for industrial automation applications .

2. Key Features

High-Speed Communication – Supports DH+ network connectivity, enhancing data transfer rates compared to RS-232 .
Multi-Processor Compatibility – Works with PLC-2, PLC-3, and PLC-5 series controllers .
Address Selection – Supports multiple address configurations, allowing integration with other PC-based option cards .
Software Support – Compatible with 6001-F1E, 6200, and RSLinx software .
Compact Design – Half-size 8-bit ISA card, fits standard 8-bit or 16-bit ISA slots .
LED Diagnostics – Provides status indicators for network and communication health .

3. Technical Specifications

Parameter	Specification
Bus Interface	8-bit ISA (compatible with 16-bit slots)
Power Requirements	5V DC @ 0.4A, ±12V DC @ 0.04A
Power Consumption	2W @ 5V DC, 0.48W @ ±12V DC
Operating Temp.	0°C to 60°C (32°F to 140°F)
Humidity Range	5–95% (non-condensing)
Certifications	CE, UL, CSA

4. Applications

Real-Time Monitoring – Connects PCs to PLCs for data logging and control .
Industrial Automation – Used in manufacturing, energy, and process control systems .
Legacy System Integration – Bridges older PLC-2/3/5 systems with modern PCs .