Product Details
The Foxboro FDC280 RH101FQ, also cataloged as the RH101FQ Field Device Controller, operates as a dedicated hardware component for deterministic control logic execution and real-time field communication management within EcoStruxure Foxboro Distributed Control System platforms. The unit processes digital and analog control loops via high-speed internal bus links, providing active node coordination between supervisory operator stations and field-mounted instrumentation.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FDC280 RH101FQ |
| Brand | Foxboro |
| Origin | Standard Manufacturing Facility |
| Weight | 0.8 kg |
| Dimensions | 105 mm x 51.8 mm x 147 mm |
| Operating Temp | 0 deg C to 60 deg C (32 deg F to 140 deg F) |
| Power Consumption | 12 W max |
| System Compatibility | EcoStruxure Foxboro DCS / I/A Series |
| Enclosure Type | DIN-Rail / Baseplate Mount Module |
| Communication Ports | Dual Ethernet / Controller Bus Links |
4-20 mA HART Loop Protocol and Channel-to-Channel Isolation
Within process control architectures, the controller interfaces directly with remote I/O subsystems supporting 4-20 mA HART loop protocol instruments, FOUNDATION Fieldbus segments, and Profibus PA networks. Internal circuit board layouts incorporate galvanic channel-to-channel isolation and optical barriers across communication interfaces to eliminate ground loops, suppress electromagnetic interference, and protect internal processing cores from field-side voltage transients.
Frequently Asked Questions
Q: Does the FDC280 RH101FQ support hot-swapping under power within a redundant baseplate?
A: Yes, individual controller modules can be removed and replaced while live on a dual-position baseplate without interrupting the execution of the active redundant partner.
Q: How do redundant RH101FQ controllers handle database synchronization during a failover event?
A: The paired modules continuously mirror control logic execution and memory registers via a dedicated high-speed synchronization link, ensuring bumpless switchover during primary hardware faults.
Field Installation Guidelines
- Mount the controller securely onto an approved DIN rail or dedicated 2-position baseplate inside an industrial control cabinet, ensuring vertical orientation for natural convective airflow.
- Connect the dedicated chassis ground lug directly to the cabinet ground bus using a low-impedance braided copper strap to maintain electromagnetic shielding.
- Verify that operating ambient temperatures inside the enclosure do not exceed the 60 deg C upper thermal limit during continuous full-load operation.
- Inspect all communication patch cables and power terminal plug connections to guarantee secure mechanical locking and proper strain relief.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.




























