Product Overview

The Foxboro FBM216 P0917XQ is a redundant HART communication input assembly used with Foxboro I/A Series distributed control systems. The FBM216 provides eight analog input channels, with each channel accepting a standard 4–20 mA signal or HART digital communication superimposed on the analog loop. A redundant pair can be configured at the Fieldbus Module level, allowing one module to operate as the Master while the second operates as the Tracker. Foxboro documentation also identifies galvanic isolation of the eight input channels from ground and module logic, together with dedicated HART FSK modem capability for each channel.

Importantly, P0917XQ is the redundant adapter associated with the FBM216 pair, rather than simply an independent multifunction I/O card. The 200 Series FBM parts documentation specifically states that the adapter is attached to the baseplate when FBM216 modules are used as a redundant pair.

Technical Specifications — FBM216 P0917XQ

Foxboro’s current certification documentation identifies FBM216b as an eight-channel 4–20 mA HART input module, while the legacy 200 Series documentation identifies P0917XQ as the redundant adapter used with an FBM216 pair.

Foxboro FBM216 P0917XQ

Key Features and Benefits — FBM216 P0917XQ

• Eight 4–20 mA analog input channels
• HART digital communication support
• Dedicated HART modem for each input
• FBM-level redundancy
• Supports standard and HART-enabled transmitters
• Galvanically isolated input group
• Compatible with Foxboro termination assemblies
• Designed for demanding process-control environments
• Suitable for critical instrumentation applications

The HART pass-through capability is particularly useful during maintenance because the DCS can access transmitter diagnostics and configuration information without installing a separate HART multiplexer. The module can handle a mixture of standard 4–20 mA and HART devices across its channels.

Related Models

Foxboro FBM214: Eight-channel HART input module for standard analog/HART transmitter applications.

Foxboro FBM215: Eight-channel 4–20 mA HART output module used for analog control outputs.

Foxboro FBM218: Eight-channel HART analog output module with a different signal direction.

Foxboro FCP270: Field Control Processor used to execute control strategies and communicate with compatible Foxboro I/O.

Installation and Maintenance — FBM216 P0917XQ

Before replacement, verify the FBM type, redundant-pair arrangement, baseplate position, termination assembly, cable type, and HART transmitter wiring. The P0917XQ adapter should be checked against the actual redundant configuration rather than ordered solely as a standalone I/O replacement.

Inspect the baseplate connector and termination wiring for oxidation, loose contacts, or mechanical damage. After installation, confirm Master/Tracker status and verify each 4–20 mA channel independently. HART communication should also be tested where digital diagnostics are required.

Personally, I would test the analog loop value and HART communication separately. A correct 4–20 mA reading does not necessarily prove that the digital HART communication path is functioning correctly.

Product Warranty — FBM216 P0917XQ

Warranty coverage depends on supplier, equipment condition, and purchase agreement. For new, surplus, or refurbished inventory, confirm the exact FBM configuration, adapter identification, hardware revision, termination compatibility, functional-test results, and warranty period before purchase.

The Foxboro FBM216 P0917XQ should be sourced as part of the complete redundant I/O arrangement. Correct matching of the FBM modules, redundant adapter, baseplate, termination assembly, and system configuration is essential for reliable operation.