FC81-A YOKOGAWA CENTUM XL Datasheet & Technical Manual

FC81-A YOKOGAWA CENTUM XL HF Bus Coupler Module

FC81-A YOKOGAWA CENTUM XL HF Bus Coupler Module

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YOKOGAWA FC81-A HF Bus Coupler Module Configured for high-speed data exchange between controllers and HF devices in CENTUM XL and...

SKU: FC81-A

Manufacturer: Yokogawa
Product No.: FC81-A
Product Type: Communication Modules
Product Origin: JAPAN
Payment:T/T, Western Union
Weight: 700g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

YOKOGAWA FC81-A HF Bus Coupler Module

Configured for high-speed data exchange between controllers and HF devices in CENTUM XL and Micro XL networks, the YOKOGAWA FC81-A (FC81 Bus Communication Control Card) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

The internal manufacturing designation determines the specific hardware revision and backplane compatibility constraints for this communication block:

FC81: Base model code indicating the High-speed Fieldbus (HF) bus communication control architecture.
-A: Type revision specifier indicating standard high-frequency network physical layer termination.
S9713BM-02: Assigned sub-assembly part code defining the specific component revision and layout optimization of the internal PC board.

Hardware Specifications

Parameter	Specification
Model	FC81-A (S9713BM-02)
Brand	YOKOGAWA
Origin	Japan
Weight	0.70 kg
Dimensions	25.4 cm x 5.1 cm x 38.1 cm
Operating Temp	0 to 55 deg C
Power Consumption	Supplied via system rack backplane
Network Protocol	High-speed Fieldbus (HF) network interface
System Compatibility	Legacy CENTUM XL and Micro XL control stations
Physical Execution	Centralized communication control card architecture
Isolation Barrier	Embedded transformer-coupled line isolation

Process Control Communication Architecture

The hardware executes active signal filtering while enforcing physical channel-to-system isolation barriers, managing deterministic token passing over legacy High-speed Fieldbus (HF) segments to prevent network latency spikes. The integrated instrumentation circuits support the 4-20 mA HART loop protocol layer indirectly through upstream gateway links, while this card directly handles the high-frequency backbone routing between distributed engineering nodes and primary process racks. The physical layer employs dedicated transceiver circuits designed to suppress cross-talk across co-axial field bus paths, maintaining strict packet delivery structures without taxing the main control station memory mapping.

Frequently Asked Questions

Q: Can the FC81-A module be deployed within modern CENTUM VP system architectures?

A: No. The FC81-A is a dedicated legacy hardware interface built strictly for the electrical and protocol specifications of CENTUM XL and Micro XL backplanes. It cannot communicate with newer CENTUM VP control stations or modern FIO/RIO network fabrics.

Q: What indicates a localized physical layer failure on the HF bus control line?

A: Internal hardware check routines monitor signal attenuation levels. A drop in network line voltage below the designated receiver threshold triggers an onboard hardware exception flag, signaling the master controller that data packet parity can no longer be verified.

Field Installation Guidelines

Backplane Slot Alignment: Verify the alignment pins match the legacy rack slot parameters perfectly before seating the card, pressing firmly to lock the gold-plated edge connectors into the system backplane.
Coaxial Network Termination: Install matching character impedance coaxial terminators at both physical ends of the HF bus loop, preventing signal reflection from corrupting high-frequency data packets.
Static Shield Separation: Route all HF network cables through dedicated metal conduits, ensuring the outer shielding links to an isolated instrument ground bar rather than safety earth paths.
Cabinet Thermal Balancing: Maintain unblocked ventilation spacing around the communication card array within the enclosure to manage internal heat levels and protect the legacy capacitor networks.

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