Description

Yokogawa AFV10D Duplexed Field Control Unit

Configured for deterministic process control execution in CENTUM VP Field Control Station environments, the Yokogawa AFV10D-S41251 (AFV10D Field Control Unit) provides direct redundant control processing and Vnet/IP communication handling. The module operates as a duplexed control hardware node implementing synchronized execution across dual processors and redundant system buses.

Suffix Breakdown & Model Matrix

Code Component	Code Value	Description
Model	AFV10D	Duplexed Field Control Unit for Vnet/IP based FCS
Suffix	S	Standard configuration type
Suffix	4	Dual-redundant Vnet/IP and dual power supply architecture
Suffix	1	Fixed design identifier
Suffix	2	220 to 240 VAC power input class
Suffix	5	ISA G3 environmental corrosion resistance option
Suffix	1	LFS1500 control function enabled

Hardware Specifications

Parameter	Specification
ModelBrand	Yokogawa AFV10D-S41251
Origin	Japan
Weight	approx 8 kg
Dimensions	19 inch rack mounted module, standard FCS chassis compatible
OperatingTemp	-10 degC to +55 degC
PowerConsumption	approx 230 VA max
Processor	VR5432 / VR5532 RISC CPU (revision dependent)
Control Network	Dual redundant Vnet/IP Ethernet
Power Input	220 to 240 VAC, 50/60 Hz
Redundancy	Dual processor, dual power supply, dual network path

Channel-to-Network Process Data Integrity Layer

The Yokogawa AFV10D implements channel-to-network deterministic synchronization within a dual-redundant Vnet/IP topology. Process variables are mirrored across duplexed processors, ensuring lockstep execution during scan cycle transitions. Internal architecture supports channel validation logic to maintain deterministic output consistency during transient bus desynchronization events. Isolation between control domains reduces inter-channel coupling during high-speed scan processing cycles typical of CENTUM VP FCS operation.

Frequently Asked Questions

Q: Does the AFV10D support hot swap replacement during runtime?
A: The unit is designed for redundancy-based continuity; module replacement is performed under system redundancy coordination, not direct hot insertion under active single-channel load.

Q: What is the behavior under single power supply failure?
A: The duplex power architecture maintains control continuity through the remaining active supply without interrupting Vnet/IP synchronization.

Q: Is firmware consistency required between redundant processors?
A: Yes. Both processor domains require synchronized firmware images to maintain deterministic execution alignment.

Field Installation Guidelines

Ensure installation within a grounded 19 inch rack chassis compliant with system backplane specifications. Maintain separation between Vnet/IP cabling and power conductors to minimize electromagnetic coupling. Shield termination must be bonded at a single-point ground reference to avoid loop current formation across redundant communication channels. Maintain airflow clearance above and below the module to support thermal dissipation under continuous scan operation. Verify dual power feed polarity consistency before energization.

Specifications

• Brand: Yokogawa

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems