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Product Overview

The Foxboro FBM242 (P0916TA) provides high-density analog signal processing for the I/A Series and Foxboro Evo Distributed Control Systems (DCS). This 100% Brand New original module interfaces 16 isolated analog transmitter signals with the system's redundant Fieldbus. It accepts standard 4–20 mA DC signals, converting critical process variables into high-resolution digital data. Engineered for mission-critical industrial applications, the FBM242 (P0916TA) ensures accurate data acquisition in petrochemical plants, power generation facilities, and large-scale water treatment systems where rack space optimization and signal integrity remain top priorities.

Technical Specifications

Feature Technical Details
Model / Part Number FBM242 / P0916TA
Input Channels 16 Isolated Analog Input Channels
Input Range 4–20 mA DC
Measurement Accuracy ±0.05% of span
A/D Resolution 12 to 16-bit (Software Configurable)
Isolation Architecture Galvanic isolation withstands 600 V AC
Communication Redundant Fieldbus Interface
Onboard Memory 16 MB SDRAM, 32 MB Flash
Power Input 24 V DC (Redundancy Supported)
Operating Temperature 0 to +60 °C (32 to 140 °F)
Dimensions 4.5 cm x 11 cm x 11.5 cm
Weight 0.35 kg

Engineering Advantages

  • High-Density Channel Layout: The P0916TA accommodates 16 analog inputs within a compact 4.5 cm wide module. This high-density architecture doubles the capacity of standard 8-channel modules, allowing for significant reduction in control cabinet footprint and infrastructure costs.

  • Precision Sigma-Delta Conversion: The module utilizes advanced A/D conversion technology to deliver ±0.05% accuracy. This precision ensures that the DCS receives exact process data for safety-critical control loops, minimizing errors in flow, pressure, and temperature monitoring.

  • Superior Galvanic Isolation: Each channel features robust galvanic isolation capable of withstanding 600 V AC. This protection effectively eliminates ground loops and prevents electrical transients from the field from damaging the internal DCS logic or interrupting adjacent signal channels.

  • Fault-Tolerant Communication: The FBM242 connects to the system via a redundant Fieldbus interface. If one communication path fails, the module maintains active data exchange through the secondary path, ensuring zero loss of visibility for the control room operators.

  • Rugged Industrial Hardening: Designed to thrive in demanding unconditioned environments, the module's thermal management allows it to operate reliably up to 60 °C. The compact rack-mount design facilitates rapid installation into standard Foxboro baseplates.

FAQs

  • Can the FBM242 (P0916TA) support HART digital communication?

    The standard FBM242 focuses on 4-20mA analog signal acquisition. If your application requires HART pass-through diagnostics, you may need to verify your specific Termination Assembly (TA) compatibility or consider the FBM247 series.

  • Is this module a direct replacement for 8-channel analog inputs?

    Yes, you can upgrade to the 16-channel P0916TA to increase density; however, you must ensure your Termination Assembly (TA) and system software configuration support the 16-point mapping.

  • What happens if a single channel fails?

    The module features channel-to-channel isolation. A fault, short circuit, or open loop on one field transmitter remains localized to that specific channel, preventing it from affecting the other 15 inputs on the module.

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