1784-KTCS Allen-Bradley PC Interface Communication Module

Product Overview

The Allen-Bradley 1784-KTCS is a specialized ControlNet™ scanner module designed for PC-based industrial communication. This high-performance interface card allows industrial computers to act as a scanner on a ControlNet network, facilitating direct data exchange between PC applications and field devices. Compatible with both legacy 16-bit ISA and 32-bit EISA bus architectures, the 1784-KTCS provides a bridge for older industrial PCs to remain operational within modern, high-speed ControlNet environments.

Technical Configuration

• Manufacturer: Allen-Bradley / Rockwell Automation
• Catalog Number: 1784-KTCS
• Bus Interface: 16-bit ISA / 32-bit EISA Architecture
• Network Support: ControlNet (Coaxial)
• Power Supply: 5.0 Volts DC (Internal PC Bus)
• Input Current: 640 mA (Maximum)
• Application: PC-to-PLC Communication and Data Acquisition

Technical Specifications

Installation & PC Integration

1. Hardware Compatibility: Before installation, verify that your industrial PC supports the 16-bit ISA or 32-bit EISA slot requirement. The 1784-KTCS requires 640 mA from the 5V DC rail of the motherboard; ensure your system power supply has adequate capacity to handle this load alongside other peripherals.

2. Network Connection: Connection to the ControlNet network is achieved via standard BNC coaxial connectors. As a scanner module, this card can manage I/O data transfers and messaging, making it an essential component for SoftLogix™ controllers or high-end HMI (Human Machine Interface) workstations requiring real-time network access.

3. Environmental Considerations: The module is rated for stable operation up to 50°C. In high-density PC enclosures, ensure adequate airflow across the ISA/EISA slots to prevent localized heat buildup, which can affect signal integrity and the 5 Mbps deterministic data rate.

Engineering Advantages

The 1784-KTCS delivers a robust communication solution for legacy hardware maintenance and specialized automation tasks. Its primary advantage lies in its ability to turn a standard PC into a ControlNet master, allowing for sophisticated data logging, complex calculations, and direct control of I/O. The card is designed for durability in demanding industrial environments, featuring gold-plated bus connectors and shielded housing to resist electromagnetic interference common in factory settings.

Technical FAQs

Q1: Does the 1784-KTCS support PCI or PCIe slots?
A1: No, the 1784-KTCS is strictly designed for legacy 16-bit ISA or 32-bit EISA architectures. For newer systems, you would typically use the 1784-PKTCS (PCI) or 1784-PCICS cards.

Q2: What is the primary difference between a "Scanner" and a "Link" card?
A2: A Scanner module like the 1784-KTCS can actively manage and control I/O modules on the network, whereas a Link card is primarily used for messaging between processors.

Q3: Is any special software required for the PC to recognize the card?
A3: Yes, you will need the appropriate 1784-KTCS drivers and RSLinx™ Classic software to configure the communication path and allow Windows-based applications to access the ControlNet network.