Product Name
Foxboro RH916RB 16-Slot Horizontal Fieldbus Backplane, I/A Series Compact 200 DCS Rack Baseplate
Product Overview
RH916RB is a 16-slot passive horizontal backplane designed for Foxboro I/A Series Compact 200 DCS distributed control system. It serves as the mounting base for FBM field bus I/O modules, supporting up to 16 pieces of compact FBM input/output modules simultaneously. Equipped with dual redundant 2Mbps fieldbus channels and dual 24VDC power supply distribution circuits, it ensures high-reliability data communication and stable power supply between DCS controllers and field instruments. Widely used as replacement spare part and cabinet expansion hardware in petrochemical, thermal power, water treatment, metallurgy and other process industries.
Core Functions
- Accommodates maximum 16 compact FBM I/O modules, compatible with analog, digital and HART communication FBM modules.
- Dual redundant 2Mbps fieldbus design realizes seamless master-backup bus switch to avoid system shutdown caused by single bus failure.
- Dual-channel 24VDC power distribution supports redundant external power supply to guarantee stable power feeding for all installed I/O modules.
- Hot-swap function allows online replacement and expansion of I/O modules without system shutdown.
- DIP switch for backplane address identification and bus impedance termination, effectively eliminates signal reflection and electromagnetic interference for long-distance industrial communication.
Technical Specifications
- Slot Quantity: 16 slots for Compact 200 Series FBM Modules (Horizontal Installation Only)
- Fieldbus Communication Rate: 2 Mbps, Dual Redundant Bus
- Power Input: 24 VDC DC, Dual Redundant Power Loop
- Mounting Type: Standard DIN Rail Horizontal Mount
- Operating Temperature: 0℃ ~ +60℃
- Protection Class: IP20 (Indoor Cabinet Installation)
- Compatible Modules: FBM201, FBM202, FBM214, FBM218, FBM242 and all Compact FBM Series Modules
- Compliance: IEC 61131, ISA Industrial Automation Standards
Application Fields
- Petrochemical & Oil & Gas Industry: Refining plant, pipeline DCS system cabinet expansion and spare part maintenance.
- Power Generation Industry: Thermal power, hydropower, waste incineration power plant auxiliary control system retrofit.
- Water & Wastewater Treatment: Municipal sewage, desalination industrial automatic control system hardware replacement.
- Metallurgy, Paper Making, Pharmaceutical and other process industrial Foxboro legacy DCS upgrade and maintenance projects.
Product Advantages
- 100% original compatibility with full Compact FBM module series, no control program modification required for mixed old & new modules.
- Dual redundancy design for both communication bus and power supply ensures non-stop system operation under single-point fault condition.
- Hot-swap function greatly reduces production loss by allowing online equipment maintenance and system expansion.
- Passive circuit design with no vulnerable electronic components, ultra-low failure rate for long-term continuous industrial operation.
- Standard DIN rail structure facilitates fast cabinet installation and on-site wiring.
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