The PCI Bus TC-PCIC01 Honeywell, officially designated as a Cnet Interface Module for PC, served as a specialized communication hardware component. Its核心功能 was to act as a bridge, facilitating a critical physical and data link between a personal computer and a broader control network, specifically Honeywell's proprietary Cnet. This integration allowed engineers and technicians to use standard PC hardware for essential tasks such as system configuration, real-time data monitoring, and historical data acquisition directly within the Honeywell automation ecosystem. The role of the TC-PCIC01 CONTROLNET INTERFACE CARD was therefore integral to the operational workflow and accessibility of the control system it supported.

In terms of its physical characteristics, the Honeywell  TC-PCIC01 PCI Bus was designed with compactness in mind, featuring an estimated shipping size of 2.1 by 18.3 by 12.6 centimeters and a light weight of only 0.16 kilograms. This form factor allowed for convenient installation within a standard desktop computer chassis. The module was engineered as a PCI card, a common expansion bus standard at the time, ensuring broad compatibility with a wide range of industrial and commercial PC platforms. Its internal designation and part number, (96365671), were used for precise identification and ordering within Honeywell's spare parts system.

Electrically, the TC-PCIC01 PCI Interface Module Honeywell was designed to operate safely and efficiently within the constraints of a desktop computer environment. It required a low-voltage power input of 5.25 VDC at 700 milliamps, which was typically drawn directly from the computer's motherboard via the PCI slot. This power specification, coupled with its classification as a Class 2 device, indicated a design focused on low energy consumption and safety, minimizing potential electrical hazards. This made the module reliable for continuous operation in control rooms and engineering stations.

It is important to note that the ControlNet Interface Module Honeywell TC-PCIC01 has been officially marked as discontinued by the manufacturer. This status signifies that Honeywell has ceased production and may no longer provide direct hardware support, firmware updates, or replacement units for this specific model. For organizations still relying on legacy systems that require this interface, this necessitates sourcing the module from the secondary market or considering a system upgrade to modern, supported communication solutions offered by Honeywell to ensure long-term operational reliability and cybersecurity.