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.
| 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 |
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.
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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