Description
The Foxboro P0926GH, commonly referred to by its model designation FBM214, is a high-performance analog input interface module within the EcoStruxure Foxboro DCS (formerly I/A Series) family. This module is specifically designed to interface with 4 to 20 mA field transmitters. It provides eight channels of analog input, each equipped with HART® communication capabilities, allowing the control system to access secondary variables and diagnostic data from “smart” field instruments.
FOXBORO P0926GH
Technical Specifications (Datasheet Summary)
The P0926GH is engineered for high-density signal processing and electrical robustness, ensuring accurate data acquisition in harsh industrial environments.
| Parameter | Specification |
| Model Number | FBM214 |
| Part Number | P0926GH |
| Input Channels | 8 Isolated Channels |
| Input Signal Range | 4 to 20 mA DC |
| Communication | HART® (Highway Addressable Remote Transducer) |
| Resolution | 15-bit Minimum |
| Accuracy | ±0.03% of span |
| Input Impedance | 250 Ω (Nominal) |
| Isolation | Channel-to-channel and Channel-to-ground galvanic isolation |
| Power Consumption | 2.5 W (Maximum) |
| Operating Temp | -20°C to +70°C (-4°F to +158°F) |
| Relative Humidity | 5% to 95% (Non-condensing) |
Key Functional Features
- HART Integration: Every channel supports the superimposed digital HART signal. This enables the I/A Series system to perform remote calibration, status monitoring, and asset management of field devices without additional wiring.
- Galvanic Isolation: The module provides superior noise immunity and prevents ground loops by electrically isolating each channel from the others and from the system backplane.
- Compact Form Factor: The P0926GH is designed for high-density installation in Foxboro DIN rail-mounted baseplates, optimizing control cabinet space.
- Hot-Swappable: The module can be removed and replaced under power without disturbing the field wiring or the operation of other modules in the same baseplate.
Application Areas
The FBM214 is widely utilized in process industries where precise measurement and instrument diagnostics are critical:
- Oil & Gas: Monitoring pressure, temperature, and flow transmitters on offshore platforms and refineries.
- Chemical Processing: Managing sensitive feedback loops in reactors where signal isolation is paramount.
- Power Generation: Interfacing with boiler and turbine instrumentation in high-EMI environments.
- Water & Wastewater: Distributed monitoring of remote flow meters and chemical analysis sensors.
Country of Origin
The Foxboro P0926GH FBM214 is primarily manufactured in the USA. As part of Schneider Electric’s Foxboro brand, these modules are produced in facilities specialized in high-integrity distributed control system hardware.
Installation and Maintenance
Mechanical Installation
- Baseplate Compatibility: The P0926GH must be installed on a compatible Foxboro FBM baseplate (e.g., P0926KE).
- Alignment: Carefully align the module with the guide rails and the D-connector on the baseplate. Press firmly until the module is fully seated and tighten the retaining screws.
Field Wiring
- Termination Assemblies (TA): Field signals are connected via a separate Termination Assembly. The P0926GH uses a dedicated cable to link the module to the TA, allowing the module to be replaced without disconnecting individual field wires.
- Transmitter Power: The module can provide loop power to 2-wire transmitters or receive signals from externally powered 4-wire transmitters, depending on the TA configuration.
FOXBORO P0926GH
Recommended Related Foxboro Models
To complement the P0926GH in a Foxboro DCS environment, the following modules and components are frequently used:
- P0926GU (FBM215): The analog output counterpart, providing 8 channels of 4-20 mA output with HART support.
- P0914TR (FBM217): A 32-channel discrete input module for monitoring switch contacts.
- P0926KE: The 8-position DIN rail-mounted baseplate required to host the FBM modules.
- P0914YM (FCM10E): The Fieldbus Communications Module that bridges the FBMs to the high-speed Ethernet control network.
- P0916 (TAs): Various Termination Assemblies specifically designed for use with the FBM214.
