Description
The Foxboro FBM242 (P0916TA) is a high-density discrete output module engineered for the I/A Series distributed control system. It provides 16 isolated digital output channels, enabling precise control over field devices such as motor starters, solenoid valves, and indicator lamps. Designed for rigorous industrial environments, this module features channel-to-ground isolation and redundant communication paths, ensuring reliable, deterministic operation in sectors including power generation, petrochemical processing, and manufacturing.
Features
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High-Density Output: Provides 16 independent sourcing outputs in a compact Eurocard footprint.
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Redundant Communication: Supports dual-redundant fieldbus connections to maintain system integrity during cable faults.
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Solid-State Reliability: Utilizes advanced solid-state switching to eliminate mechanical wear and extend service life.
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Diagnostic Monitoring: Includes integrated LED status indicators for each channel to streamline field troubleshooting and loop verification.
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Inductive Load Protection: Onboard suppression circuitry mitigates back-EMF spikes, protecting internal components from inductive kickback.
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Hot-Swappable Design: Allows for maintenance and module replacement without requiring a system-wide power-down.
Applications
The FBM242 is suitable for critical control applications where high-density digital output is required. It is commonly deployed in I/A Series racks to interface with field-side actuators, providing the necessary galvanic isolation to protect the control bus from electrical interference generated in harsh process areas.
Technical Specifications
| Model |
FBM242 (P0916TA) |
| Module Type |
16-Channel Discrete Output |
| Output Voltage |
15 to 60 VDC |
| Max Total Current |
2.25 Amps per module |
| Galvanic Isolation |
600 V AC (field-to-bus) |
| Power Consumption |
3 W maximum |
| Operating Temperature |
-20 to +70 deg C |
| Humidity |
5 to 95% (non-condensing) |
| Environmental Rating |
G3 Harsh (ISA S71.04) |
Installation Guidelines
- Ensure the baseplate is properly grounded before inserting the module to prevent electrostatic discharge (ESD) damage.
- The FBM242 is hot-swappable; ensure the module is fully seated in the baseplate slot to establish a secure connection with the backplane.
- Verify that output wiring is routed away from high-voltage AC lines to minimize electromagnetic interference (EMI).
- Maintain adequate ventilation within the cabinet to stay within the specified -20 to +70 deg C operating range.
- Confirm that field power supplies are within the 15-60 VDC range before initiating output commands.
FAQ
What is the primary function of the FBM242?
The FBM242 is a 16-channel discrete output module that interfaces I/A Series controllers with field devices, providing isolated, solid-state switching for digital control logic.
Is this module compatible with existing I/A Series baseplates?
Yes, the FBM242 is designed for standard I/A Series high-density baseplates and supports hot-swapping for maintenance without disrupting adjacent I/O operations.
Does the module require external suppression for inductive loads?
No, the FBM242 includes internal suppression circuitry to handle back-EMF from inductive loads such as relays and solenoids, protecting the switching transistors.
