Description
Description
The Foxboro FEM100 (P0973CA) is a specialized Fieldbus Expansion Module engineered to extend the communication range and capacity of the Foxboro I/A Series Distributed Control System (DCS). By acting as a signal repeater and buffer, this module enables the connection of additional Fieldbus Modules (FBMs) across extended baseplate configurations. It is essential for large-scale industrial environments, such as power plants and chemical processing facilities, where maintaining high I/O density and deterministic communication over distance is critical to operational efficiency.
Features
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Deterministic Communication: Supports standard 2 Mbps Fieldbus data rates, ensuring real-time signal integrity across expanded segments.
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Redundancy Support: Designed for dual-path (Path A and Path B) redundant configurations to maintain network availability in the event of a single-path failure.
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Signal Regeneration: Actively buffers and repeats signals to mitigate attenuation and loading issues common in extended serial communication loops.
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Fault Isolation: Provides electrical isolation between baseplate segments to prevent local fault propagation, enhancing overall system stability.
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Seamless Integration: Designed for direct installation into standard Foxboro I/A Series mounting structures with no complex software configuration required.
Applications
This module is typically deployed in I/A Series DCS architectures requiring expansion beyond standard baseplate limitations. It is frequently utilized in high-availability, large-scale automation projects where reliability, redundancy, and scalability are primary design requirements.
Technical Specifications
| Model |
FEM100 (P0973CA) |
| Brand |
Foxboro (Schneider Electric) |
| Module Type |
Fieldbus Expansion / Repeater |
| Communication Rate |
2 Mbps |
| Redundancy |
Dual-Redundant Fieldbus Paths |
| Power Consumption |
2.8 Watts (Max) |
| Operating Temperature |
0 to 60 deg C |
| Storage Temperature |
-40 to +70 deg C |
| Relative Humidity |
5 to 95% (non-condensing) |
Installation Guidelines
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Power-Down: Always remove power from the baseplate before installing or removing the FEM100 module to prevent electrical damage or bus disruption.
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ESD Handling: Use proper electrostatic discharge (ESD) protection, including grounded wrist straps, when handling the module to protect sensitive internal components.
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Mounting: Ensure the module is fully seated into the designated baseplate slot and that all locking mechanisms are engaged to maintain a secure connection.
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Cable Routing: Keep communication cables away from high-voltage lines and sources of electromagnetic interference (EMI) to ensure signal clarity.
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Environment: Verify that the installation location meets the specified temperature and humidity ranges to ensure long-term reliability.
Compliance and Certifications
The FEM100 (P0973CA) meets standard industrial requirements, including CE and CSA certifications, and holds FM Approval for use in Class 1, Division 2 hazardous locations.
FAQ
Does this module require software configuration? No, the FEM100 is designed for transparent operation and does not require complex software addressing to function as a repeater.
Can the FEM100 be used in a non-redundant system? Yes, while it supports dual-redundant paths, it can be utilized in single-path configurations as required by your specific system architecture.
