Overview

The 1788‑FBJB6 is part of Rockwell Automation’s Fieldbus connectivity solutions, serving as a 6-way junction box that allows multiple field devices to be connected to a single fieldbus segment. It supports up to six connections, reducing wiring complexity and improving installation efficiency.

It is compatible with both Profibus PA and Foundation Fieldbus H1 networks, making it versatile for process automation applications.

Rockwell Automation discontinued this product on March 1, 2024, with no planned replacement in their catalog.

Technical Data

Typical Applications

Process Automation

Connects multiple transmitters, sensors, and actuators to a single fieldbus segment.

Chemical & Petrochemical Plants

Simplifies wiring in hazardous environments.

Power Generation

Provides reliable fieldbus connectivity for distributed control systems.

Food & Beverage

Supports hygienic process automation with reduced wiring complexity.

OEM Equipment

Used in custom machinery requiring fieldbus integration.

Example:
In a refinery control system, the 1788‑FBJB6 junction box allows six field devices to connect to a single fieldbus trunk, reducing installation costs and improving communication reliability.

FAQ

Q1: What is the primary function of the 1788‑FBJB6?
A1: It serves as a 6‑way junction box for Profibus PA and Foundation Fieldbus H1 networks.

Q2: How many devices can it connect?
A2: It supports up to six field devices.

Q3: Is it still available from Rockwell Automation?
A3: No, it was discontinued on March 1, 2024, with no direct replacement.

Q4: Where can it be sourced now?
A4: It is available only through aftermarket suppliers and surplus distributors.

Q5: What industries typically used this module?
A5: It was widely applied in process automation, chemical, petrochemical, power generation, and OEM machinery.