The Allen-Bradley 1784-KTCS is a ControlNet scanner interface card designed to connect personal computers, workstations, and terminals to ControlNet networks in industrial automation environments. It enables ISA and EISA bus-compatible industrial PCs, programming terminals, and workstations to communicate directly as an active master node over an industrial ControlNet fieldbus network. This dual‑port BNC card operates as both a network interface and a remote I/O scanner, enabling seamless communication with Allen‑Bradley processors and controllers over ControlNet infrastructure.

Bus Interface Architecture:

Compatible with 16-bit ISA and 32-bit EISA computer expansion slots

Operating Voltage:

Requires a regulated power input of 5V DC drawn straight from the computer backplane host slot

Maximum Input Current:

Draws a maximum current of 640 mA under full data traffic load to ensure stable performance

Ambient Operating Temperature:

0 °C to 60 °C (32 °F to 140 °F) inside the host PC chassis enclosure

Storage Temperature Requirements:

-40 °C to 85 °C (-40 °F to 185 °F) in a protected environment

Relative Humidity Range:

5% to 95% non-condensing atmosphere

PC-Based Control Scanning:

Serves as a localized hardware scanner for soft-logic processing systems to manage distributed field components.

HMI and Data Acquisition:

Bridges human-machine interfaces (HMI) or SCADA host computers directly with plant-wide ControlNet networks for real-time visualization.

Network Diagnostic Monitoring:

Deployed inside programming terminals to capture hardware diagnostics, tracking active network nodes, and troubleshooting frame transmission drops.

Legacy Desktop Upgrades:

Installed to retain network capability inside legacy control rooms running classic industrial computers.

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