The Foxboro FCM10E is a specialized Fieldbus Communications Module designed for the I/A Series distributed control system. This module serves as a high-speed bridge between the 10 Mbps Ethernet control network (Nodebus/Mesh) and the 2 Mbps HDLC-based module fieldbus. By enabling efficient data exchange between the control processor and Fieldbus Modules (FBMs), the FCM10E ensures reliable, deterministic communication for industrial automation environments, including petrochemical and power generation facilities.
Features
Supports redundant module configurations for high-availability control architectures.
Provides transparent protocol translation between Ethernet and HDLC fieldbus segments.
Integrated diagnostic monitoring for power rails and communication port health.
Offloads low-level communication overhead, such as packet framing and error checking, from the main processor.
Supports up to 64 FBMs per fieldbus segment for scalable system expansion.
Engineered for bumpless switchover during redundant link or hardware failure scenarios.
Technical Specifications
Model
FCM10E
Brand
Foxboro (Schneider Electric)
Ethernet Rate
10 Mbps
Fieldbus Rate
2 Mbps (HDLC)
Max FBM Capacity
64 modules
Operating Temperature
0 to 60 deg C
Storage Temperature
-40 to +85 deg C
Relative Humidity
5 to 95% (Noncondensing)
Power Consumption
5 W (Typical)
Isolation
600 VAC (port-to-ground)
Installation Guidelines
Ensure the system is powered down before inserting or removing the FCM10E from the mounting base.
Maintain proper ventilation in the control cabinet to keep ambient temperatures within the 0 to 60 deg C operating range.
Use appropriate shielded cabling for Ethernet and fieldbus connections to minimize EMI interference.
Verify that the module is securely seated in the baseplate to ensure reliable contact with the backplane.
Handle with standard ESD precautions to prevent damage to sensitive internal circuitry.
FAQ
What is the primary function of the FCM10E?
The FCM10E acts as a communication interface that bridges the high-level Ethernet-based control network with the lower-level HDLC-based fieldbus, allowing the controller to communicate with individual FBMs.
Does this module support redundancy?
Yes, the FCM10E is designed to be installed in redundant pairs, providing automatic, bumpless switchover if one module fails, which is essential for maintaining process continuity.
What is the typical power requirement?
The module has a typical power consumption of 5 W.
