1788-CN2FFR | Allen-Bradley | 1788 Linking Devices Network Linking Device

Product Overview

The Allen-Bradley 1788-CN2FFR functions as a high-speed network linking device within the 1788 product family. This specialized hardware establishes a transparent bridge between ControlNet scheduled token-passing networks and FOUNDATION Fieldbus H1 process automation segments. It executes real-time data translation and maps field device variables directly into the controller memory, making it an essential interface for comprehensive plant-wide process control integration.

Technical Specifications

Engineering Advantages

• Secures High-Availability Communications: Dual integrated BNC coaxial ports support ControlNet media redundancy natively. The device monitors signal integrity constantly and switches data transmission to the backup cable instantly if the primary network segment fractures.

• Eliminates Standalone Fieldbus Power Modules: The linking device supplies up to 0.5 Amps of direct fieldbus current at 24V DC into the H1 segment. This onboard capability powers connected field instrumentation directly, reducing total component count inside the enclosure.

• Simplifies Control Cabinet Installation: The compact open-style chassis snaps directly onto standard symmetrical DIN rails. This design minimizes required backpanel real estate and accelerates mechanical layout adjustments during panel fabrication.

• Suppresses Plant-Floor Ground Loops: A 30V continuous isolation barrier electrically separates distinct network segments from the core logic circuitry. This suppression stops high-voltage industrial electrical transients from leaping onto the communication buses and scrambling data.

FAQs

• Does this unit arrive with the factory seals intact?

  Yes. We supply the 1788-CN2FFR exclusively in 100% brand new, original factory conditions. The device ships in its authentic manufacturer box with complete factory documentation.

• What type of cabling does the Ethernet portion require during setup?

  The device interfaces with standard CAT5 Shielded Twisted Pair (STP) or Unshielded Twisted Pair (UTP) cabling configurations. We recommend STP cables in heavy industrial environments to block electromagnetic interference from adjacent high-voltage lines.

• Can this module operate outside the 24V DC nominal power envelope?

  Yes. The internal voltage regulator accepts any input power supply ranging between 24V DC and 32V DC. This wide operating range maintains data translation continuity even during common industrial battery bank voltage fluctuations.