Description

Yokogawa AFV10D-S41201 Duplexed Field Control Unit

The Yokogawa AFV10D-S41201, also cataloged as the AFV10D Duplexed Field Control Unit, operates as a dedicated hardware component for real-time process signal execution within CENTUM VP control networks. It supports dual-redundant Vnet/IP communication and direct interface with Field Input/Output modules.

Hardware Specifications

Parameter	Specification
ModelBrand	Yokogawa AFV10D-S41201
Origin	Japan
Weight	8 Kg
Dimensions	440 mm × 170 mm × 170 mm
OperatingTemp	-10 degC to +55 degC
PowerConsumption	230 VA
Processor	VR5432 RISC CPU, 133 MHz, 64-bit
MainMemory	32 MB battery-backed
NetworkInterface	Dual-redundant Vnet/IP, 1 Gbps full duplex
I/OCapacity	Up to 8 FIO cards per slot
MaxNodeUnits	14 (9 local, remainder remote)
Mounting	19-inch rack, 8 × M5 screws

Process Control Specific Features

The unit supports channel-to-channel isolation to prevent signal interference between adjacent FIO modules. Cold junction compensation (CJC) is implemented for accurate temperature sensor readings across thermocouple inputs. FOUNDATION Fieldbus and Profibus PA connectivity is supported through compatible interface modules, ensuring deterministic communication within the DCS network.

Frequently Asked Questions

Q: Can this FCU support hot-swappable FIO cards?
A: Yes. FIO cards can be replaced without powering down the unit, provided standard ESD precautions are observed.

Q: What is the expected failover time when switching between dual-redundant processors?
A: Switch-over occurs within milliseconds, maintaining active I/O processing without interruption.

Q: Is firmware upgrade compatible with existing LFS1500 control functions?
A: Yes, firmware updates are backward-compatible with LFS1500 functionality on the AFV10D-S41201.

Field Installation Guidelines

• Install the FCU in a standard 19-inch rack using 8 × M5 screws.
• Ensure all Vnet/IP network cabling uses CAT5e or higher UTP with RJ45 connectors.
• Ground the chassis to the facility earth reference to reduce EMI.
• Maintain minimum 100 mm clearance around the unit for airflow.
• Avoid routing high-current power cables parallel to communication lines to prevent induced noise.

Specifications

• Brand: Yokogawa

Advantages

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