Foxboro P0914XS Overview
The Foxboro P0914XS is a FBM237 Channel Isolated Output Module for the Foxboro I/A Series Distributed Control System (DCS). It is designed to provide 8 channels of 0-20 mA analog output, with each channel being galvanically isolated. It is also "redundant-ready," meaning two of these modules can be paired to provide redundant output for critical applications, enhancing system reliability.
Product Detailed Description
Function: This module acts as an interface between the Foxboro I/A Series control processor (FCP or FCM) and field devices requiring analog current signals. It converts digital control signals from the DCS into 0-20 mA current outputs, which are commonly used to actuate control valves, drive motor speed controllers, or adjust other process variables in industrial plants.
Key Features:
8 Channels: Provides eight independent analog output channels.
0-20 mA Output: Standard industrial current output range.
Channel Isolated: Each output channel is galvanically isolated from other channels and ground, preventing ground loops and improving noise immunity. This is crucial for maintaining signal integrity and system reliability in electrically noisy industrial environments.
Redundant Ready (FBM237): This module can operate singularly or as part of a redundant pair (two FBM237s). When used redundantly, an adapter module (like a Redundant Adapter module on the baseplate) combines their outputs to create a single, highly available output, ensuring continuous operation even if one module fails.
I/A Series Integration: Designed specifically to work seamlessly within the Foxboro I/A Series DCS architecture, communicating with Field Control Processors (FCPs) or Field Communication Modules (FCMs) via the module fieldbus.
Industrial Grade: Built for robust operation in industrial environments.
Product Parameters
Part Number: P0914XS
Associated FBM Model: FBM237
Module Type: Channel Isolated 8 Output 0-20 mA Analog Output Module
Output Channels: 8
Output Range (each channel): 0 to 20.4 mA DC
Accuracy: ±0.05% of Span (between 0.1 mA and 20 mA)
Accuracy Temperature Coefficient: ±50 ppm/°C
Output Load: 750 Ω maximum
Output Processing Delay: 30 ms maximum
Resolution: 13 bits
Communication: Communicates with its associated FCM or FCP via the module fieldbus.
Power Requirements:
Input Voltage Range (Redundant): 24 V DC +5%, -10%
Consumption (Maximum): 7 W (maximum) at 24 V DC
Heat Dissipation (Maximum): 5 W (maximum) at 24 V DC
Calibration: Calibration of the module and termination assembly is not required.
Environmental Specifications:
Operating Temperature (Module): -20 to +70°C (-4 to +158°F)
Operating Temperature (Termination Assembly - PA): -20 to +70°C (-4 to +158°F)
Relative Humidity: 5 to 95% (noncondensing)
Altitude: -300 to +3000 m (-1000 to +10 000 ft)
Storage Temperature: -40 to +70°C (-40 to +158°F)
Regulatory Compliance:
Electromagnetic Compatibility (EMC): European EMC Directive 2004/108/EC (Prior to)
Product Safety: Underwriters Laboratories (UL) for U.S. and Canada UL/UL-C listed as suitable for use in UL/UL-C listed Class I, Groups A-D; Division 2; temperature code T4 enclosure-based systems.
Physical:
Product Advantages
High Reliability & Availability: The redundant-ready design allows for hot standby configurations, significantly increasing system uptime and reducing the risk of process interruption due to module failure.
Enhanced Signal Integrity: Channel isolation minimizes noise and interference, ensuring accurate and stable analog outputs, which is critical for precise process control.
Seamless DCS Integration: Designed specifically for the Foxboro I/A Series, ensuring compatibility and simplified configuration within the system.
Robustness: Built to withstand demanding industrial environments, contributing to long-term operational stability.
Precise Control: High resolution and accuracy enable fine-tuned control of actuated devices.
Reduced Wiring Complexity: Provides 8 outputs in a single module, optimizing space and simplifying wiring compared to single-channel modules.
Precautions
Electrical Safety: WARNING! To prevent electric shock and explosions, always ensure power is removed from the equipment at the source or that the atmosphere is non-explosive before installing or removing cables, wiring, modules, or any replaceable system components, especially in hazardous locations. Use insulated tools.
Hazardous Locations: This module is UL/UL-C listed as suitable for use in Class I, Groups A-D; Division 2; temperature code T4 enclosure-based systems. Adhere strictly to hazardous location installation requirements.
Redundancy Configuration: When deploying in a redundant configuration, ensure two FBM237 modules are properly seated on adjacent baseplate positions (e.g., odd + even) and that the correct Redundant Adapter module (e.g., ECB202) is used on the termination cable connectors to achieve a single, redundant output.
Compatibility: Ensure compatibility with your existing Foxboro I/A Series processor modules (FCP/FCM) and system version.
Environmental Conditions: Operate and store the module within the specified temperature, humidity, and altitude ranges to ensure optimal performance and longevity.
Proper Mounting: Securely mount the module on the DIN rail and ensure proper connection to the termination assembly.
Product Applications
The Foxboro P0914XS (FBM237) is a core component in the Foxboro I/A Series DCS and is widely applied in various process industries for analog output control, including:
Oil & Gas: Control of flow rates, valve positions, and burner management systems.
Chemical Processing: Regulating chemical dosages, reactor temperatures, and pressure.
Power Generation: Control of boiler feed water flow, steam valves, and turbine speed.
Pharmaceutical Manufacturing: Precise control of liquid dispensing, mixing, and environmental conditions.
Pulp & Paper: Control of drying processes, chemical addition, and motor speeds.
Water & Wastewater Treatment: Regulation of pump speeds, valve positions for flow control, and chemical dosing.
Mining & Metals: Control of conveyors, furnace temperatures, and material processing equipment.
General Industrial Process Control: Any application requiring precise and reliable 0-20 mA analog output signals to actuate field devices.
