Description

The Foxboro FBM218 (P0922VW) is a high-availability HART Communication Redundant Output Module designed for the I/A Series Distributed Control System (DCS). This module provides eight isolated analog output channels, each capable of superimposed HART digital communication. It is specifically engineered for mission-critical applications in sectors such as oil refining, chemical processing, and power generation where continuous valve control and instrument diagnostics are paramount. The FBM218 supports redundant pair configurations, allowing two modules to operate in tandem to ensure that control output is maintained even in the event of a single module failure.

Features

• Eight isolated 4-20 mA analog output channels with HART support.
• Supports 1-for-1 functional redundancy for high-availability control.
• Galvanic isolation (600 VAC) between channels and from earth to prevent ground loops.
• High-speed digital-to-analog conversion with 13-bit resolution.
• Seamless integration with the 2 Mbps I/A Series Fieldbus.
• Provides deep diagnostic insight into intelligent field actuators.

Applications

The FBM218 is intended for use in industrial environments requiring precise control and monitoring, including:

• Oil and gas refining processes.
• Chemical and petrochemical manufacturing.
• Power generation facilities.
• Critical loop control where downtime must be minimized.

Technical Specifications

Installation Guidelines

• Ensure the system is powered down before inserting or removing the module from the baseplate.
• The FBM218 must be installed in a compatible I/A Series baseplate; for redundant configurations, ensure modules are placed in the designated adjacent slots.
• Use shielded twisted-pair cabling for field connections to minimize EMI/RFI interference.
• Maintain proper grounding of the module chassis to the system common to ensure effective galvanic isolation.
• Handle with standard ESD precautions to prevent damage to internal circuitry.

Compliance and Certifications

The FBM218 is designed for use in hazardous locations and meets the following standards: CE, CSA, and FM Approved for Class 1 Division 2.

FAQ

Does this module support HART communication? Yes, the FBM218 is specifically designed to support superimposed HART digital communication on all eight output channels.

Can this module be used in a redundant configuration? Yes, the FBM218 supports 1-for-1 functional redundancy when installed in a redundant baseplate, allowing for seamless failover.