Foxboro P0917YZ FCP270 I/A Series Fault-Tolerant Processor
Manufacturer: Foxboro
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Part Number: P0917YZ
Condition：New with Original Package
Product Type: Field Control Processors
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Foxboro FCP270 P0917YZ Field Control Processor
The Foxboro FCP270 P0917YZ, also cataloged as the FCP270 Field Control Processors, operates as a dedicated hardware component for real-time control logic execution and regulatory algorithm processing within Foxboro I/A Series and Evo DCS platforms. Equipped with 16 MB SDRAM and 32 MB Flash memory, the module processes field I/O signals and executes safety interlocks via dual Ethernet and Foxboro Fieldbus interfaces. In fault-tolerant configurations, two paired modules operate in 1+1 hot-standby mode to provide automatic control switchover in less than 100 ms without interrupting active process loops.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | FCP270 (P0917YZ) |
| Brand | Foxboro |
| Origin | USA |
| Weight | 0.6 kg (1.32 lbs) |
| Dimensions | 14.7 x 5.15 x 11.4 cm |
| Operating Temp | 0 deg C to +60 deg C |
| Storage Temp | -40 deg C to +70 deg C |
| Power Consumption | 24 VDC typical, 5 VDC +/-5% internal |
| Product Type | Field Control Processors |
| System Compatibility | Foxboro I/A Series / Evo DCS |
| Memory Capacity | 16 MB SDRAM, 32 MB Flash |
| Redundancy | 1+1 hot-standby (<100 ms switchover) |
| Safety Rating | SIL2 compliant |
| Environmental Rating | Class G3 harsh environment (ISA S71.04) |
| Communication Interfaces | Dual 100 Mbps Ethernet ports, Foxboro Fieldbus |
| Compliance | IEC standards, CE certified |
Fieldbus Channel Isolation and HART Data Execution
The Foxboro FCP270 P0917YZ manages field communications through isolated Fieldbus interface ports, protecting internal CPU circuitry from field-side electrical surges and common-mode voltage offsets. The processor routes 4-20 mA HART loop protocol digital variables directly to system database points while preserving channel-to-channel isolation across connected Fieldbus Modules (FBMs). This isolated signal processing architecture prevents noise coupling between field instrument loops, maintaining accurate analog-to-digital conversion for sensitive temperature loops requiring cold junction compensation (CJC).
Frequently Asked Questions
Q: What is the maximum switchover time between redundant FCP270 processors during a hardware fault?
A: The fault-tolerant 1+1 hot-standby configuration executes an automatic control transfer from the primary to the backup processor in less than 100 ms.
Q: Can the FCP270 P0917YZ be deployed in corrosive cabinet environments?
A: Yes, the processor features conformal coating rated for ISA S71.04 Class G3 harsh environmental conditions.
Q: Does the FCP270 P0917YZ support online firmware updates without process interruption?
A: In a redundant pair configuration, operators can update firmware on the secondary module before initiating a controlled switchover, maintaining continuous control execution.
Field Installation Guidelines
Mount the FCP270 P0917YZ into the designated baseplate slot by aligning the rear card edges with the card guides. Slide the processor inward until the backplane connectors seat completely into the baseplate socket assembly. Secure top and bottom captive mounting screws to establish chassis ground continuity and prevent movement under panel vibration.
Connect dual 100 Mbps Ethernet communication cables to the front panel RJ45 connectors to establish redundant control network links. Use shielded CAT5e or CAT6 cables and ensure the cable drain wires terminate directly at the cabinet earth ground bus bar. Maintain clear vertical airflow paths above and below the baseplate to satisfy thermal convection requirements in standard 0 deg C to +60 deg C operational environments.