RH100EB Foxboro Fault-Tolerant Control Module 24VDC
Manufacturer: Foxboro
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Part Number: RH100EB
Condition：New with Original Package
Product Type: Distributed Control Systems
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The Foxboro RH100EB serves as a high-performance computational engine within the Foxboro I/A Series and Spectrum Distributed Control System (DCS). This control processor module integrates three vital automation pillars—data acquisition, real-time logic processing, and high-speed system communication—into a single, hardened unit. It manages complex process loops with deterministic precision, making it a staple in refining, power generation, and chemical processing. We supply this module as 100% brand new and original, providing the operational stability required to maintain peak system performance and prevent unscheduled process interruptions.
Technical Specifications
| Feature | Specification Details |
| Model Number | RH100EB |
| System Compatibility | Foxboro I/A Series / Spectrum DCS |
| Processor Configuration | Single (Supports Dual for Fault-Tolerant setup) |
| Onboard Memory | 16 MB SDRAM / 32 MB Flash |
| Operating Voltage | 24 VDC (Redundant Support) |
| Power Consumption | Max ~8.5 W per module |
| Operating Temperature | 0 to 60 deg C (32 to 140 deg F) |
| Storage Temperature | -40 to 85 deg C |
| Humidity Range | 5% – 95% non-condensing |
| Dimensions (H x W x D) | 14.7 cm x 5.15 cm x 11.4 cm |
| Weight | 2.0 kg to 3.0 kg |
Engineering Advantages
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Fault-Tolerant Availability: The RH100EB architecture allows for dual-processor pairing. This configuration enables bumpless failover, where a standby processor assumes control in milliseconds if the primary unit fails, ensuring continuous operation for critical process safety.
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Consolidated Control Architecture: By housing acquisition and processing functions on one card, this module reduces backplane traffic and simplifies the overall system map. This integration results in faster response times for high-speed PID loops and inter-locking logic.
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Redundant Power Resilience: The module operates on 24 VDC and accepts redundant power feeds. This prevents data loss in the 16 MB SDRAM during localized power supply failures and protects the 32 MB Flash from voltage transients.
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Legacy DCS Integration: The RH100EB offers a direct upgrade path for older Spectrum DCS systems. It allows facilities to modernize their processing power without a complete overhaul of existing I/O baseplates or wiring, effectively extending the lifecycle of the entire control system.
FAQs
Q: Can the RH100EB replace legacy processors in an existing Spectrum DCS?
A: Yes. The RH100EB maintains full backward compatibility with Spectrum DCS and I/A Series environments, acting as a high-performance drop-in replacement for older control units.
Q: Is this module hot-swappable in a redundant configuration?
A: Absolutely. In a dual-processor (fault-tolerant) setup, you can replace a failed RH100EB module while the redundant partner continues to execute process control, eliminating the need for a system shutdown.
Q: What is the benefit of the onboard Flash memory?
A: The 32 MB Flash memory stores the control database and system configuration locally. This ensures the RH100EB reloads its application parameters immediately upon power restoration, independent of the host workstation.
Q: Are these units refurbished or original stock?
A: We sell only 100% brand new, original Foxboro factory units. Each RH100EB arrives in original packaging to guarantee zero-hour reliability for mission-critical industrial applications.